ML20138H557
| ML20138H557 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 08/05/1996 |
| From: | Macgill D, Eric Thomas LAMBERT, MACGILL & THOMAS, INC. |
| To: | |
| Shared Package | |
| ML20138H550 | List: |
| References | |
| S023-XXVII-20.6, S23-XXVII-20.6, NUDOCS 9705070221 | |
| Download: ML20138H557 (37) | |
Text
- _ . _ _ -_ . m _ -_ . _ . _ _ _ . __
r s 8p;8, ,
I REFEREaCE: s0183.V!-l ROUTING AND DOCUMENT CONTROL i
NOTE: 11 only [ditorial Corrections are reevired, I h form PF(123) 111 shesid be used (refer to 50l!3-VI 1.0.1).
A. Document No.: MM-bN ~ .b J Rev. No.: I sisle, U% %1ht Fa m,nn hm of Vasel Nr Ids and A-dial'en+
fast Mebd "
l Document Author / Originators btto Mdul/I('Abf PAK bN l
B.
Date Routed: IN - 7 M -si L Reason for Review TO RPG Writer: N .bo tLEIl i M ryv ocrytd f 4IbrN 3ST HT" won r F Ocn w w,f i PAK WW Cee Lo. a 1 u j RFCFWFD (MM C. This document has been verified against the P81D{s verified aga est Yes O noplant actual O nconga E iguration Yes O no O n/A g g 7ggg t D. TChs/[Cs N/A Incorporated
! Cancelled Disapproved m en e r.n m-so. me. On L astu wi i E.
j !s this document Fac111ty (or revision)
Design Change a result of a Facility Identifiers -
Design Change? (DCP. mP. hCR. FCN. or TFM) Yes O NA IvPE 80.
F. N Dis osition of Controlled Fore (s): lac ode copy hoCom ttachment.
if agi displayed chan as an a/A e O neb)109-2 per 50123-VI 1.4.) revised or voided O (rndica ete PF(1
{
G.
Formal / Interdisciplinary Review (Blant areas are for independent reviews. Printinperson'snameand/ororganfration.)
NOTE:
Check the line Oversight Nuclear below.Oversight Review Required Report or NDMS. If Nuclear Oversight review is required, check the Nuclear REVIEWED / APP 90Vt0 BY:
m.i.o t,,i; e.a.wo . ....... .c t,j; a 73,a, . .. fo,s. i.. . . i . .c _ .. .m,,.
7,,a,,
Business L Financial Serv.
/ Site Technical Services 44 g4 !
Chemistry i
/ ' C a .' /AN!! g, q gp g j Health Physics Technical I '
l Maintenance Nuclear Systees Eng NEDO Electrical Systems Eng I Nuclear Construction Power Generation Nuclear Fuel Technical Support j kuclear Oversight g, p4 g Nuclear Safety Group
Nuclear Regulatory Affairs HPLL Compliance nuclear Training Operations Plant Sept Unit 1 Plant Supt Units 2/3 Shift Supt Unit 1
$nift supt Units 2/3 Operations Procedures Group Security Site Emergency Preparedness Fire Protection l Site Support Services l
l
- If comments are infonnational, enter 'A' and initial. If technical coassents require resolution prior to approval, enter 'l' and initial. If no comments, enter NON[ or 'C' and initial. Attach CC(123)261 form or marked up document, as necessary.
sce norn m uv. r s/w nu- f or E 9705070221 970501 PDR ADOCK 05000361 P PDR
. _ _ _ _ . _ .,. _ _ _ . . ~. ,
ROUTING AND DOCUMENT CONTROL (Continesd) 01cument No. S' dh. h b Rey.
] H. Training Regstred:
Tes O No % dM CONTACT FOR TRAINING C00RDlhAT]% PAA (PRINT NAME)
GA PROGRAM AFFECTING CLA531FICATION Butlear eversight Review Required List Deterstaattee Current ProDosed ' '
p p Af fecting documents)
QA Program Affecting
/ Wtil document be on GA Review Required List?
Level 1 QA Program Affecting vEs O NO S Not QA Program Affecting Proposed Level ! QA Program Affecting or Not QA Program Affecting Classification APPROVED BY: EIE II II8 NUCLEAR OVERSIGHT CATE NMEAR SI M CATE J.
Could implementation of this document pose adverse environmental effects of any type directly or tadtrectly? YES O .0 2 (if YES, a revision is not authorized untti a revieu from Environmental Protection is obtained.
Refer to $0123-VI-1.3.)
K.
Is the document being voided or classified as Not QA Program Affecting? (Document classification is indicated on Table of Contents page.) If YES. skip Section M and proceed to Section 0. TES O nok 10 cTR 10.19 considerattee r Has the proposed change already been evaluated for 50.59 consideration (or a 7 question Safety Evaluation prepared) using an approved process? (Esamples of approved processes are: DCP/FCNpetP/TFM/NCR. Tech $pec Amendment isolamentation. LCS change, associated Procedure Safety Evaluation [7 questions), etc.7) I NOTE: Both YES and No may be checked if applicable.
Yes O Enter identifier and associated number n. R Attach pr(223) 209.i or s0.5, safety Evaivatico Note If YES, the proposed change must be addressed (7 questic,ns). (Refer to 50123-VI-1.3.)
in the 60.59 documentation already generated.
Indicate DCP. FCN. 99tP. IFM. ACR T/5 Amend., LCS. Procedure and Number M. 109 FORM ENTRIES. DOCUMENT.
& REVIEWERS APP 90VEB 8Y: ~ [ LMCOEN! As1 sbPearls04 bit I
b
( Bart N. Factitty Design Change toplementation REVIEVED SY:
COGal avisos it O. Final Document Approval and Reviewer Concurrence: APPROVED SY C llANT FURC11084L S!ttsIDe menArett #
/ eitS CRDER (or Special Procedure) APPROVED BY: NlA I Vict Pt(sIDENT. RELEAR GlatRAflog sATI P.
Copy of PF(123) 109-1 and 50.59 $afety Evaluation sent to nuclear Regulatory Affairs. as applicable, and Document Package Preparat1on PERFORNED BYr fa m o 2 -
0 9 ~I 9 -4 C.
aPs mas'rga os assni hts sais Q. Copy of PF(123) 109 and document to be sent tos (References $0123.VI.28)
(INDICATED BY NPG WR]TER)
Nuclear Training Division. AIMS Coordinator. E-50 [
5tte Technical Services Ofvision Yes N/Ah Yes - N/A.2dL PAGE 1 0F_5__
i
rusr Lambert MacGill Thomas, Inc. So23-xx m -20.ss Revision 01 M Nondestructive Examination Procedure Page 1 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Mednyrn enu
- 1. PURPOSEAND SCOPE SEP 191996 A. Purpose
- 1. This procedure provides instructions for implementation of the rehrebtNf the ASME Boiler and Pressure Vessel Code,Section XI for the straight beam and angle beam contact ultrasonic examination of vessel welds greater than two (2) inches thickness.
B. Scope
- 1. This procedure is applicable to the ultrasonic exammation of vessel welds and adjacent base metal conducted from either the inside or outside surfaces.
- 2. This procedure is applicable to both clad and unciad vessel welds and adjacent base metal.
- 3. This procedure is applicable to vessel support skirt welds greater than two (2) inches j thickness. I
- 4. This procedure may be used to examine portions of the inner-radiused sections within the nozzle bore.
II. REFERENCES A. American Society cfMechanical Engineers (ASME) 1, Section V, Article 4,"Nendestructive Examination",1989 edition. ,
- 2.Section XI, "Rulesfor Inservice Inspection ofNuclear Power Plant Components", }
1989 edition.
B. LambertMacGill Thomas (LYT) l
- 1. Nuclear Quality Assurance Program.
- 3. QA 37, " Qualification ofNondestructive Exammation Personnelfor Ultrasonic Examination."
lII. DEFINITIONS A. ASMFJASTM
- 1. The defmitions contained in ASME/ ASTM SE-500 " Standard Definitions of Terms Relating to Ultrasonicinspection" are app!icable to this procedure.
- 2. Laminar Reflector (flaw): A reflector oriented within 10 degrees of a plane parallel to the component surface.
- 3. Planar RcDector (flaw): A reflector oriented more than 10 degrees from parallel to the examination surface. .
Prepared By: E.L. Thomas I Approved By: [M o710 f 4 cd %w hbN dBMacGill Date E.L. Thohas Date QA Officer President &
General Manager QA PROGRAM AFFECTING
TEST Lambert MacGill Thomas, Inc. u r. 2 ,
Revision 23 f July 30,1996 i M
Nondestructive Examination Procedure Page 2 of 35 l Ultrasonic Examination of Vessel Welds and Adjacent Base Metal t
\ IV, RESPONSIBILITY .
l The General Manager of LMT,Inc.,is responsible for the generation and control of this procedure and l l
shall so indicate by a dated signature on the bottom of Page 1, i l V. PROCEDURE QUALIFICATION l l The procedure shall be qualifhd for specific examinations, personnel, and equipment by performing a
{
successful calibration. Where the rules of ASME Section XI, Appendix Vill apply, qualification shall j be according to the requirements of LMT Procedure, QA-40.
Vl. PERSONNEL REQUIREhiENTS A. Cernfication Requarements l
- 1. Personnel performing exammations govemed by this procedure shall be quahfied and f certified accordmg to the requirements of ASME Section XI, SNT-TC-1 A, and LMT l Procedure QA-37.
( 2. Personnel shall be at least Level 11 in Ultrasonic Examination to operate equipment l and interpret the test results. i
- 3. Level 1 Personnel ma, . u the Level II but may not perform evaluations or accept i l
l the results ofexamination.
r !
Vll. EQUIPhfENTAND hfA TERIAL REQUIREhfENTS ;
A. Ultrasonic 1nstrwnentation ,
- 1. Ultrasonic instruments used to conduct examinations governed by this procedure shall !
l be of the pulse-echo type and comply with the following:
f a) Generate and receive frequencies over the nominal range of I to 5 MHz;
! b) Prc,ide linear venical presentation within *5% of the full screen height (fsh) I for at least 80% of the calibrated screen height, measured from the baseline ,
to the maximum graduated screen point; (1) Vertical linearity shall be measured and recorded according to the instructions of X.B.1,, or 2, below.
c) Have an amplitude control accurate over its useful range to *20% of the nominal amplitude ratio.
(1) Amplitude control accuracy shall be measured and recorded accord.
ing to the instructions of X.B 3 or 4, below.
d) Approved ultrasonic instrurnents are given in Table 1.
l f
i 9
a i
~-
f rusr Lambert MacGill Thomas, Inc. uw2 ,
Rev..ision 23 !
I
.. July 30,19%
M- Nondestructive Examination Procedure Page 3 of 35
- Ultrasonic Examination of Vessel Welds and Adjacent Base Metal
- VII. A. 2. Ultrasonic instrument intemal alignment and calibration shall be verified within three j months prior to use.
l a) Records of current internal alignment and calibration verification shall be available at thejobsite for client audit.
l 3. All controls wiucn affect instrument linearity characteristics, such as reject or filter, '
l shall be in the minimum or off position during linearity and amplitude control j venfication, calibration, and examination.
B. Recorders i
- 1. Electrome recording equipment (i.e., stnp chan, magnetic tape, etc.), when used, shall have undergone electronic alignment and calibration verification within six months prior to use.
a) Records of current internal alignment and calibration verific.ition shall be available at the jobsite for client audit.
- 2. Video Recording equipment need not be cenified.
C. Search Units
- 1. Search unit essential properties shall be determined and certified by.either the manufacturer or LMT and shall include:
I a) Bandwidth-b) Damping; !
c) Center frequency; d) Relative gain; c) A photographic record of the frequency. amplitude curve shall be obtained; f) A photographic record of the unloaded initial pulse against a calibrated time base and vohage values will be identified and recorded on the horizontal and vertical axis of the above photographic record of the initial pulse.
- 2. For Reactor Pressure Vessel Examinations for which the requirements of NRC Regulatory Guide 1.150 are applicable, l. e, and I. f, above shall be performed within one (1) day prior to and within one (1) day after completion of all vessel weld exammations during one outage.
- 3. Angle beam scarch units shall produce an actual refracted angle within *3 degrees of the nominal angle, as determined on a standard reference block, such as an !!W or Rompas block.
I l
l
i -
l 1, .. .
l 1 .
Lambert MacGill Thomas, Inc.
ur. 2
, TEST Revision 23 July 30,1996 M
Nondestructive Examination Procedure Page 4 of 35 l Ultrasonic Examination of Vessel Welds and Adjacent Base Metal j Vll. C 4. Search unit size and frequency selection shall be selected according to the following
! table:
l 1
l Straight Beam Angle Beam j Maximum Maximum Maximum Maximum j Size Nominal Size Nominal
- Frequency Frequency 1
, I" Square 1" Square j or 5.0 MHz or 5.0 MHZ
- 1" Diameter 1" Diameter Maximum Search Unit Size and Frequency a) Specific size and frequency selection will be detennined by the item thickness, diameter, material characteristics, and access limitations.
- 5. For angle beam examinanons, nominal refracted angles of 45,60, and 70 degrees shall be used.
a) Beam angles other than 45 and 60 degrees may be used, providing the measured difference between angles is at least ten (10) degrees.
- 6. Other beam angles, search unit sizes, and/or frequencies may be used for supplemental examination,i nvestigation, or evaluation.
D. Couplant
- 1. U.S.P.-grade glycerine, commercially available couplant, or demineralized water shall be used for calibrations and examinations.
- 2. Couplant materials shall be analyzed, on a batch basis, for sulphur and chlorine content according to ASTM D-129 and ASTM D.808.
- 3. Couplant sulphur and chlorine content shall be as low as practicable, but shall not exceed 1% by weight.
E. Cahbranon Blocks
- 1. Calibration blocks shall be of the forr of Figure 1.
- 2. Calibration blocks shall be fabricated from one of the following:
a) a nozzle drop-out from the component; b) a component prolongation; c) a material of the same material specification, product form, and heat treatment as one of the items beingjoined l
Lambert MacGill Thomas, Inc. ur. 2 l
_ TEST Revision 23
.. July 30,1996 M- Nondestructive Examination Procedure Page 5 cf 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal Vll. E. 3. For the examination of clad components, the calibration block shall be clad to the same nominal thickness,il/8".
a) Clad deposition shall be by the automatic method used on the component.
b) ' Clad may be deposited by manual welding methods when it is impractical to apply clad by an automatic method.
c) The manual method shall be the same as the manual method used to cover the circumferential welds of the component.
- 4. For examinations from the inside diameter clad surface, the basic vessel calibration block shall contain the following side drilled holes, in addition to those depicted in Figure 1:
a) One hole, at least 1.5 inches deep, maximum diameter of 0.125", centerline located at either 0.25 inches from the clad surface, or at the clad base metal interface, drilled parallel to the clad interface; b) At least two (2) =W==1 holes, depth and diameters as above, at maximum depth merements of 0.5 inches, center to-center (these holes shall be used to establish metal path calibration).
- 5. The following heat treatment requirements shall be observed, as applicable:
a) At least the minimum tempering treatment required by the block material specification for the type and grade; b) A minimum post-weld heat treatment of two hours.
- 6. The calibration block surface finish shall be representative of the item to be examined.
- 7. Prior to machining, the block material shall be completely examined by a straight beam technique.
a) Areas containing indications greater than the remaining back reflection I amplitude shall be excluded from the beam paths required to perform calibration.
Vlll. PREPARA TIONS i
A. Documentation
- 1. The followingjob-related documents shall be reviewed by the LMT Field Supervisor and client representatives and ANil prior to the commencement of on-site activities:
a) Calibration Report forms; b) Examination Report forms; c) Equipment and Material certifications; l d) Personnel certifications; l c) Examination procedures; l f) Personnel Occupational Radiation Exposure records.
l
)
i, . . . .
TEST Lambert MacGill Thomas, Inc. ur. 2 l Revision 23 July 30,1996
! M Nondestructive Examination Procedure Page 6 cf 35 4
)
Ultrasonic Examination of Vessel Welds and Adjacent Base Metal j l
Vlll. B. Physical
- 1. The following physical preparation requirements shall be accomplished prior to performi:g specific examinations:
a) Insulation removal; b) Examination surface preparation; c) Pre and post examination cleaning; d) Radiation safety requirements; e) Radiation Work Permit requirements; f) Scaffolding, ladders, etc.
- 2. Surfaces shall be sufficiendy smooth and clean that, in the judgment of the examiner, a meaningful examination may be performed before proceeding.
- 3. Welds shall be identified and all required marking procedures completed before performing any examinations.
IX. LIMITA TIONS A. This procedure is based on the requirements of the specific documents referenced in Paragraph 11 and may require modification or revision for other use.
B. This procedure is intended for application to butt welds and adjacent base metal in ferritic vessels of greater than two inches thickness and is not generally applicable to other materials i or weld configurations.
X. SYSTEM CAllBRATION A. General Requirements
- 1. Calibration shall be performed on a complete system prior to use of the system in the thickness range under examination, and shall include instrument, search unit, search unit cable, search unit wedge., couplant and recorder, if used.
- 2. Both angle and straight beam calibrations shall be performed from the clad side of the block when the examination is to be performed on a clad surface.
- 3. Both angle and straight beam calibrations shall be performed from the unclad side of the block when the examination is to be performed on an unciad surface.
- 4. The calibration block temperature shall be within 25 degrees F of the item to be examined.
- 5. For angle beam calibration, the scarch unit shall be positioned to direct the beam normal to the long axis of the calibration reflector (SDH), with the center of the beam aligned with the half-length of the reflector.
- 6. Perform straight beam calibration according to X.C, below.
(
. 1
{ TEST Lambert MacGill Thomas, Inc. trr. 2 !
Revision 23 i j '
July 30,1996 M, Nondestructive Examination Procedure Page 7 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal X. A. 7. For examination of clad materials from the clad surface, perform angle be:m calibration as directed by X.D.! and 2, below. 5 1
- 8. For the examination of clad materials from the unciad side, perform angle beam
{
calibration according to X.D.3 and 4, below. '
- 9. For the examination ofunciad materials, perform angle beam calan: tion according to j
X.D. ! and 2, below. '
- 10. In order to assure the pulse repetition rate is acceptable, the static calibration described I
below shall be compared to a dynamic calibration performed on the same reficctors.
l Amplitudes within *2 dB verify acceptability of the pulse repetition rate.
B. Calibration Prerequisites l
- 1. Prior to commencing system calibration, vertical (screen height) linearity shall be !
verified according to the following:
[
a) Referencing the sketch, below, position an angle beam scarch unit on a l I
calibration block to obtain simultaneous signals from the % T and 3/4 T side drilled holes (SDH); j 80 40 2 4 i )e a to NN O
~ . , .
b) Adjust the search unit position to obtain a 2:1 amplitude ratio; c) Adjust the amplitude control to set the larger signal to 80% full screen height (fsh);
d) Without changing the scarch unit position, adjust the amplitude control to set l the larger signal to 100% rsh and record both signal amplitudes on the ISt UT l Exarmnatwn Report, Figute 2; c) Wlule maintaiiung constant scarch unit position, adjust the emplitude control to successively set the larger indication from 100% fsh to 10% fsh, in increments of 10% rsh, or 2 dB if a fine control is not available;
1 TEST Lambert MacGill Thomas, Inc. trr- 2 Revision 23
. July 30,1996 M. Nondestructive Examination Procedure Page S of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal X. B. 1. f) At each decremented step of 10% fsh, or 2 dB, record the amplitudes of both signals in the appropriate location on the ultrasonic calibration report:
g) Vertical "nearity is acceptable provided the amplitude ratio remains 2:1, within 5% of full screen height.
- 2. Altcmatively, the above linearity verification may be performed with a straight beam search unit on any calibration block providing a 2:1 amplitude ratio, with sufficient signal separation to prevent overlap of the two signals.
- 3. Amplitude control accuracy shall be verified prior to commencing system calibration as follows:
a) Position an angle beam search unit on a basic calibration block to obtain maximum response from the % T side drilled hole; b) Adjust the amplitude control as required to set the signal to 80% fsh; c) Without changing the search unit position, adjust the amplitude control as shown in the table below and record the new amplitude on the ultrasonic calibration report.
Set Amplitude dB Acceptable Range,
% FSH ' Change % FSH 2 80 6 32-48 80 -12 16-24 40 +6 64 - 96 20 +12 64 96 NOTES: 1 Estimate semng to nearest 1%fsh. ;
2 Mamas (-) denotes decrease in sensstuvity.
Phas (+) denotes sensstuvory increase.
3 Estimate reading to nearest 1%fsh.
- 4. Altematively, other reflectors from any calibration block may be used with angle or straight beam search units.
6 e
< TEST Lambert MacGill Thomas, Inc. ur. 2 Revision 23 July 30,1996 M
Nondestructive Examination Procedure Page 9 0f 35 Ultrasonic Examination of Vessel Welds and Adiacent Base Metal X. C. Straight Beam Cahbration
- 1. Perform straight beam sweep range calibration as follows:
a) Position the search unit for maximum amplitude response from the 1/4 T SDH; b) Adjust the delay or Zero Offset control, as applicable to the instrument in I use, to set the signal leading edge to 2.0 sweep divisions; c) Reposition the search unit to obtain maximum signal amplitude from the 3/4 T SDH; d) Adjust the range (surep, material cal, etc.) control to set the leading edge of the signal to 6.0 sweep divisions; c) Repeat steps c) and d) as required, to position the 1/4 T and 3/4 T signals at 2.0 and 6 0 sucep divisions.
- 2. Calibrate for straight bean sensitivity and establish a DAC curve, as follows:
a) Position the search unit for maximum response from the SDH exhibiting the greatest amplitude; b) Adjust the ampimide contmlto set the tip of the signal to 80% rsh, *5% fsh; NOTE: 1his is the Primary Reference Response (PRR).
c) Mark the location of the signal tip on the instrument screen; d) Without n!tering the amplitude control setting. position the search unit to obtain maumum response amplitude from each of the (two) remaining holes; c) Mark the signal tip !~ ation on the instrument screen for each hole; f) Connect the signal tip marks ud extend the line through the block thickness; NOTE: Steps g) and h), below, are optional and may beperformed at the discrenon c)the exammer.
g) Position the search unit for maximum amplitude from a reflector in a reference block, such as llW, Rompas, etc; h) Mark the location of the signal tip on the instrument screen.
- 3. Siro,ght beam cohbration is now completed. Transfer all appropriate information to the calibration report form, including DAC points and calibration and reference block identification.
. 1 TEST- Lambert MacGill Thomas, Inc. ur.2 Revision 23 l
. N Nondestructive Examination Procedure
. July 30,1996 Page 10 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal X. D. Angle Beam Calibration
- 1. For the examination of clad materials from the clad surface, or the examination of unciad materials, perform angle beam sweep (range) calibration as follows:
a) Position the search unit for maximum response from the 1/4 T side drilled '
hole; b) Adjust the delay or Zero Offset control, as applicable to the instrument in use, to position the leading edge (left l'.and side) of the signal to 2.0 sweep
{
divisions; c) Position the scarch unit to obtain maxinuun amplitude from the 3/4 T SDH; d) Adjust the range controi to set the leading edge of the signal to 6.0 sweep ;
divisions; c) Repeat steps c) and d) until the 1/4 T and 3/4 T side drilled holes appear at 2.0 and 6.0 sweep divisions, respectively; NOTE: Each division of sweep represents one-eighth of the block thickness.
- 2. For the examination of clad materials from the clad surface or the examination of unciad materials, determine calibration sensitivity and construct a DAC curve as follows:
a) Position the search unit for maximum amphtude from the SDH exhibiting the largest amplitude, and adjust the amplitude control to set the signal to 80%,
- 5% of fsh; NOTE: This is the Primary Reference Response (PPR).
b) Mark the signal tip location on the instrument screen; c) Position the search unit for maximum response from each of the remaining side drilled holes. including the 5/4 T position; d) As the maximum amplitude is obtained from cach SDH, mark its tip location on the instrument screen; c) Position the scarch unit for maximum amplitude from the far side notch, f) Mark the signal tip location on the instrument screen; g) Connect the signal tip marks; l NOTE: Steps h).1). andj), below, are opnonal and may be performed at the i descretion ofthe exammer.
h) Position the search unit for maximum amplitude from one or more reflectors j in a reference block (llW. Rompas, etc.).
- 1) Mark the signal tip location on the instrument screen; 1
\
Lambert MacGill Thomas, Inc.
- i. s ur. 2
.rss7
- ' Rev..ision 23 3
. July 30,1996 !
M- Nondestructive Examination Procedure Page 11 of 35 !
i Ultrasonic Examination of Vessel Welds and Adjacent Base Metal i
l X. D. 2. j) Angle beam cahbranonfor the exammation ofclad materialsfrom the clad surface, or the exammation ofsmclad materials is complete. Transfer the j l DAC curve and all required information to the ISI UTErammation Report ,
form.
- 3. For the examination of clad materials from the unciad surface, perform angle beam sweep calibration as follows:
a) Fmm the clad side of the block, detemune the dB difference between the 3/4 1 i T and 5/4 T side drilled holes;
- b) Position the search unit on the unciad side for maximum response from the t 1/4 T side drilled hole; j c) Adjust the delay control to position the leading edge (left hand side) of the j J
signal to 2.0 sweep divisions; j d) Position the search unit to obtain maximum amplitude from the 3/4 T SDH; 3 e) Adjust the range control to set the lenoing edge of the signal to 6.0 sweep
! divisions; '
l 0 Repeat steps d) and c) until the 1/4 T and 3/4 T side drilled holes appear at J
2.0 and 6.0, respectively;
! g) Position the search unit for maximum amplitude from the 3/4T hole and
. decrease the results by the dB value determined in a) and mark the height of l this signal amplitude at sweep line 10 (5/4T). j
, h) Connect the screen marks to provide the Distance Amplitude Curve.
i NOTE: Each division ofsweep represents one eighth of the block thickness.
! 4. For the examination of clad materials from the unciad surface, determine calibration I sensitivity and construct a DAC curve a: follows:
a) Position the scarch unit for maximum amplitude from the SDH exhibiting the largest amplitude; b) Adjust the amplitude control to set the signal to 80%, *5% of fsh; i NO7E: This is the Primary Reference Response (PRR).
j c) Mark the signal tip location on the instrument screen; 4
j d) Repeat steps b) and c) as required to cover the 1/4 T, % T, and 3/4 T side l
. dnlled holes; c) As the maximum amplitude is obtained from each SDH, mark its tip location on the instrument screen; f 0 Position the scarch unit for maximum amplitude from the far side notch; b g) Mark the signal tip location on the instrument screen;
} h) Position the search unit for maximum response from the 3/4 T SDH; 4
4pEEEA4 1
4
i l
TEST >
"ambert MacGill Thomas, Inc. ur. 2 !
Rev..ismn 23 l
July 30,1996 '
M Nondestructive Examination Procedure Page 12 of 35 Ultrasonic Examination of Vessel Wehls and Adjacent Base Metal l X. D 4. i) Adjust instrument sensitivity by the dB value obtained in X.D.3.a), above; ,
l j) Mark the new 3/4 T SDH amplitude on the instrument screen at sweep l
position 10; i k) Connect the signal tip marks for the side drilled holes; !
NOTE: Steps,1) and m), below, are optional and may be performed at the ;
discretion of the examiner. j I) Position the search unit for maximum amplitude from one or more reflectors in a reference block (llW, Rompas, etc.);
m) Mark the signal tip location on the instrument screen; i n) Angle beam calibration for the examination of clad materials from the unclad surface is complete. Transfer the DAC cune and all required information to the calibration report form. I E. Alternate Methodfor Angle Beam Calibration ;
- 1. The following altemate calibration method may be used upon approval by the LMT
]
Field Supervisor and the client representative; a) The reason for using the attemate method shall be documented on, or attached to, the calibration report and shall include the dated signature of the supervisor and client representative. !
- 2. Determine the refracted angle, either by calculation in the calibration block or by using a reference block (llW, Rompas, etc.).
- 3. Calculate the angle beam metal path for 1.5 times the morenal thicbress .
a) The following formula for calculating the metal path is included for convenience and is not mandatory. )
1.5. t I mp= Cose where, mp = calculated metal path; i t = materialthickness; O= refracted angle. j 4 Using an llW, Rompas, or other convenient, available reference block, cahbrate the sweep to display the 1.5 t metal path position as near to 10 sweep divisions as l practicable (i c., for a calculated metal path of 12 inches, a 15 inch sweep would place 1.5 T at 8.0 sweep divisions)
l r~ Lambert MacGill Thomas, Inc. trr. 2 l TEST s Revision 23 July 30,1996 M
l.
4 Nondestructive Examination Procedure Page 13 of 35 )
j Ultrasonic Exatnination of Vessel Welds and Adjacent Base Metal i
X. E. 5. Determine sensitivity and develop the DAC curve for the examination of clad
- materials from the clad surface, or the examination of mclad materials, as follows
- I a) Position the search unit for maximum amplitude from the SDH exhibiting the l largest amplitude; b) Adjust the amplitude control to set the signal to 80%, *5% of fsh; l
NOTE: This is the Primary Reference Response (PRR). J
! c) Mark the signal tip location on the instrument screen; d) Position the search unit for maximum response from each of the remaining i j side drilled holes, including the 5/4 T position; l 1 e) As the maximum amplitude is obtained from each SDH, mark its tip location I on the instrument screen; j f) Position the search unit for maximum amplitude from the far side notch; j g) Mark the signal tip location on the instrument screen; h) Connect the signal tip marksfor the side drilled holes:
l i) Position the search unit for maximum amplitude from one or more reflectors l in a reference block (llW, Rompas, etc.);
j j) Mark the signal tip location on the instrument screen; k) Alternte method angle beam calibration for the examinanon of clad l matsnalsfrom the cladsurface, or the examination ofunciad matenals. is complete. Transfer the DAC curve and all required information to the calibration report form.
- 6. Detemune sensitivity and davelop the DAC curve for the attemate examination of clad j materials from the unclad surface as follows
- )
j a) From the cladside of the block, detennine the dB difference between the 3/4 l T and 5/4 T side drilled holes; b) From the unclad side of the block, position the scarch unit for maximum amplitude from the SDH exhibiting the largest amplitude: j l c) Adjust the amplitude control to set the signal to 80%, *5% fsh; ;
I NO7E: 7his is the Primary Reference Response (PRR).
j d) Mark the signal tip location on the instrument screen; i e) Without changing the amp!itude control, repeat steps b) and c) as required to i cover the 1/4T,2/4T, and 3/4T side drilled holes; f) As the maximum amplitude is obtained from each SDH, mark its tip location i on the instrument screen; i g) Position the scarch unit for maximum amplitude from the far side notch; h) Mark the signal tip location on the instrument screen; ;
Lambert MacGill Thomas, Inc.
ur. 2 rusr ..
Revision 23 TE - July 30,19%
.V1 Nondestructive Examination Procedure Page 14 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal X. E. 6. 1) Position the search unit for maximum response from the 3/4 T SDH; j) Adjust instrument sensitivity by the dB value obtained in X.E.6.a), above; k) Mark the new 5/4 T SDH amplitude on the instrument screen at 10 sweep divisions.
I) Connect the signal tip marksfor the side drilled holes; NOTE: Steps m) and n), below, are optional and may be performed at the discretion of the examiner, m) Position the search unit for maximum amplitude from one or more reflectors in a j reference block (!!W, Rompas. etc.)-
n) Mark the signal tip location on the instrument screen; i
o) Alternate method ang,1c beam calibration for the examination of clad materials from !
the unciad surface is complete. Transfer the DAC curve and all required information l to the ISI UTExamination Report form.
F. Beam Spread Determination. Vertical Plane i
- 1. Upon completion of angle beam calibration, determine vertical plane beam spread on I the 1/4 T. % T, and 3/4 T side drilled holes, and record the results on a fonn l'
containing essentialy the same information as Figure 3.
- 2. Beam spread determinations shall be made between the 50% DAC amplitude limits, I as follows:
f a) Position the search unit for maximum amplitude from the t/4 T SDH; 1
measure and record the distance along the block entry surface from the hole 1 centerline to the scarch unit index point (maximum center values). The near l and far surface resolution of the equipment used in the testing process shall j be estimated; I b) increase the system sensitivity by 6 dB (the DAC curve now represents 50%
ofDAC);
c) Move the search unit toward the 1/4 T SDH until the signal amplitude drops to the DAC line; )
I d) Measure and record the distance along the block entry surface from the hole centerline to the se:rch unit index point (trailing values).
c) Move the scarch unit away from the 1/4 T SDH until the signal amplitude d: ops to the DAC line; O Measure and record the distance along the block entry surface from the hole centerline to the scarch unit index point (leading values).
g) Return the system sensitivity to the calibration value and repeat steps a) through 0. above, for the % T and 3/4 T side drilled holes.
i i
i 1
1
.I
~
TEST Lambert MacGill Thomas, Inc. ..
or. 2 Revision 23 g g . July 30,1996 M Nondestructive Examination Procedure Page 15 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal X. G. System Cahbration Checks (Vcritication)
- 1. When any part of the examination system is changed, calibration shall be verified on the basic calibration block to ensure sweep range and DAC values are within the tolerances of X.G.4 and 5, below.
- 2. Periodic calibration checks shall be performed:
a) Prior to beginning a weld examination; b) Immediately upon completion of a wcld examination.
c) During the examination, at intervals not to exceed four hours; d) When exammation personnel are changed (except for mechanized equip.
ment).
- 3. Calibration verification may be performed on the basic calibration block or reference block used during system calibration.
- 4. Sweep range calibration shall be acceptable provided the DAC sweep points are within 10% of the sweep reading or 5% of full sweep, whichever is greater a) If any point on the sweep is beyond the above tolerance, the calibration shall be voided, a new calibration shall be made, and all examinations performed since the last acceptable check shall be repeated.
- 5. Amplitude (sensitivity) cahbration shall be acceptable provided DAC amplitude points are within 20% or 2 dB of their recorded value.
a) If amplitude has decreased by more than 20%, or 2 dB, the calibration shall be voided, a new cahbration made, and all examinations performed since the last acceptable check shall be repeated.
b) If amplitude has mcreased by more than 20%. or 2 dB. the sy stem shall be returned to its calibrated state by adjusting the instrument sensitivity and 1 recording the change on the calibration report form All indications recorded since the last valid check shall be re-examined at the corrected settings and j their values recorded on the ISI UTExammation Report form (Ficure 2).
resr Lambert MacGill Thomas, Inc. ..
ur- 2
~ Revision 23 July 30,1996 M
Nondestructive Examination Procedure Page i6 or 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal XI. PERFORhfANCE A. Examination Vohime
- 1. The examination volume for Class I and Class 2 vessel shell and head welds is l schematically illustrated in Figures 4A,4B, and 4C.
2, The exanunation volume for Class I nozzle-to-vessel welds is schematically illustrated l in Figures 4D,4E, and 4F.
- 3. The examination volumes for Class 2 nozzle-to-vessel welds are schematically l illustrated in Figures 40 and 4H.
a) To the extent practicable, the entire examination volume shall be covered by the 0,45 and 60 degree beam angles.
i b) The 70 degree beam shall cover the near surface to a depth which is the greater of one (I) inch, or one-quarter (%) thickness.
c) For examinations conducted from the inside diameter clad surface, the nominal 70 degree examination shall be accomplished by using a refracted i longitudmal wave, and shall cover the near surface, to a depth of one (1) inch. l
- 4. To the extent practicable, portions of the inner-radius volume within the nozzle bore may be examined from the nozzle OD surface, a) Coverage and scan directions shall be documented on the examination report.
- 5. Other angles may be used for the examination of; a) flange welds, when the examination is conducted from the dange face; b) nozzles and nozzle welds, when the examination is conducted from the nozzle l
bore; c) attachment welds, support wclds, inner-radiused areas. double taper junctures, or other items or components for which the use of 45,60 and 70 degree beam I angles is not pncticable. !
B. Straight Beam Examination ofbase Afetal
- 1. 'The volume of base metal through which angle beams will travel shall be scanned with a straight beam search unit to detect the presence oflaminar reflectors which might affect the interpretation of angle beam results.
a) Scanning shall be performed at a sensitivity setting which results in an initial !
back surface rencetion amplitude of 80% ( 5% fsh) of full screen height.
b) For scanning over a tapered surface at a diameter or thickness transition.
angled longitudinal waves traveling essentially perpendicular to the back surface may be used to maintain the back reacction amplitude.
c) Straight beam penetration shall be verified by the presence of a back ref!cetion when scanning through material having parallel surfaces.
TEST > Lambert MacGill Thomas, Inc. ur. 2 Revision 23 M Nondestructive Examination Procedure July 30,1996 Page 17 of 35 Ultrasonic Exatnination of Vessel Welds and Adjacent Base Metal XI. B. 2.
The results of the base metal scan for laminar re0cetors shall be recorded on the ultrasonic examination report form, but shall not be used as the basis for matenal acceptance or rejection.
C. Straight Beam Erammanon of Weld and Adjacent Base Metal 1.
The weld and adjacent base metal within the examination volume shall be examined with a " calibrated" straight beam to the extent possible.
a)
{
Scanning shall be performed at a sensit.vity of at least two times the Primary Reference Response (PRR). ]
b) Evaluation shall be performed with reference to cahbration sensitmty.
D. Angle Beam Exammationfor Reflectors OrientedParallel to the Weld \
l
- 1. The angle beam shall be aimed at essentially right angles to the weld axis and
{
manipulated so that the beams pass through all of the weld metal from both sides of the weld, access permittmg.
a) The adjacent base metal within the examination volume shall be completely scanned by two ang!c beams, but need not be completely scanned by both beams from both directions (any combination of two angle beams will satisfy the requirement).
b) At tie end of each scan, laterally index the search unit not more than 50% of the piezoelectric element dimension transverse to the scan direction; c) Scan speed shall not exceed six inches per second.
- 2. ScanninE sensitivity shall be at least two times (+6 dB) calibration sensitivity.
Evaluation of reDectors shall be referenced to the calibration sensitivity.
E. Angle Beam Exammatwnsfor Reflectors Oriented Transverse to the Weld
- 1. The angle beam shall be directed essentially parallel to the weld from two directions, access permitting.
a) The scarch unit shall be manipulated over the weld and adjacent base metal l according to the scan limits defined in Figures 4A,4B and 4C, so that the angle beam passes through the entire (accessible) examination vrlume.
b) At the end of each scan, laterally index the search unit not more ifmn 50% of the piezoelectric element dimension transverse to the scan direction, c) Scan speed shall not exceed six inches per second.
- 2. Scanning sensitivity shall be at least two times (+6 dB) calibration sensitivity.
- 3. Evaluation of re0cctors shall be referenced to the calibration sensitivity.
F. Angle Beam Exammatwn ofNo::le Inner-RadmsedSections
- 1. When examinations are conducted on inner radiused areas, parallel reDectors shall bc l detceted by scanning toward the vessel, and circumferential reflectors shall be detected j by skewing the search unit 45 degrecs Clockwise and Couinter Clockwise. All other criteria of D and E, above, apply.
i
Lambert MacGill Thomas, Inc.
vr- 2
. TEST >
s Revision 23 ,
July 30,1996 M
8 Nondestructive Examination Procedure rage is of 35 i
' l Ukrasonic Examination of Vessel Welds and Adiacent Base Metal \
XII. EVALUA: ION
)'
1 A. Angle Beam Data Recording
- 1) Record all angle beam reflectors which produce a response equal to or greater than 20% of the distance-amplitude correction (DAC).
a) Clad interface and back wall reflections need to be recorded.
- 2) Record surface reDectors that produce a response equal to or exceeding the calibration
, amplitude established from the surface notch.
j 3) Record all search unit position and location dimensions to the nearest tenth of an inch.
- 4) Obtain data from successive scans at increments no greater than nine-tenths of the
- piezoelectric element dunension rncasured parallel to the scan increment change (10%
j overlap). Record data for the end points as determined by 20% of DAC, a) Emphasis must be placed on measurement of the parameters determining the
!j reflector length and height and the distances from the examination surface to
! the top and bottom of the reflector, since these dimensions are the factors l most critical in determining ultimate evaluation and disposition of the flaw.
4
- 5) The fo!!owing data shall be recorded when a reflector exceeds 20% DAC:
i
- n) Maximum percent of DAC, sucp reading ofindication, search unit position.
- location along the length of the weld, and beam direction.
l b) Through-Walt Dimension ,
l (1) For reflectors 20 to 100% DAC, the minimum sweep reading and its position and location along the length of the re!1ccior for 20% DAC
]
when approaching the reflector from the maximum signal direction. I j For reflectors 20 to 100% DAC, the maximum sweep reading and its (2)
' {
pcsition and location along the length of the rencetor for 20% DAC ;
j when moving away from the reflector's maximum signal direction. .
) (3) For reflectors exceeding 100% DAC, minimum sweep reading and I its position and location along the length of the reflector for 50% of the maximum amplitude when approaching the rc0cctor from the j maximum signal direction.
} (4) For reflectors exceeding 100% DAC, maximum sweep reading and
, its posinon and location along the length of the rc0cetor for 50% of the maximum amplitude when moving away from the reflector's
- maximum signa.1 direction.
c) The Length Dimensmn of the length of the reflector shall be obtained by rcrording the position and location along the !cngth of weld as determined by 20% of DAC for each end of the rc0cetor.
l X11. B. Straight Beam 1.aminar Reflector Data Recording 4
I) Recording orlaminar Reflectors for Interference With Angle Beam Examination.
i i
f' 9
< TEST
> Lambert MacGill Thomas, Inc. ur. 2 Revision 23
. July 30,1996 M. Nondestructive Examination Procedure Page 19 af 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal a) Record all areas giving indications equal to or greater than the remaining back reflection.
- 2) Recording of Laminar Reflectors for Acceptance.
a) Record all areas where one or more discontinuities produce a continuous total loss of back reflection accompanied by continuous indications in the same plane.
- 3) Recorded the sweep reading oflaminar reflectors from surface, position from reference line, and location parallel to the reference line for each search unit position giving the recordable extent of the indication, as the " laminar" area is scanned on parallel scan paths.
C. Straight Beam Planar Reflector Data Recordmg
- 1) Record all reflectors that produce a response equal to or greater than 50% of the distance amplitude correction (DAC).
a) Clad interface and back wall reflections need not be recorded.
- 2) Record all search urut position and location dimensions to the nearest tenth of an inch.
- 3) Obtain data from successive scans at increments no greater than nine-tenths of the piezoelectric element dimension measured parallel to the scan increment change (10%
overlap). Record data for the end points as determined by 50% of DAC.
D. Repornng Levels
- 1. All reflectors interpreted as cracks, incomplete penetration, or incomplete fusion shall be reported to the LMT Field Supervisor.
- 2. All planar reflectors of non-geometric origin greater than 100% DAC shall be reported to the LMT Field Supervisor.
- 3. The LMT Field Supervisor shall advise the client of the presence of reportable l indications by forwarding a Nonficanon ofReponable Indication form (Figure 6) which has been completed according to LMT Procedure QA-27, " Notification of Reportable Indication."
l I
i TEST Lambert MacGill Thomas, Inc. ~
ur.2 :
Revision 23 I July 30,1996 M
Nondestructive Examination Procedure Page 20 0f 35 l Ultrasonic Examination of Vessel Welds and Adjacent Base Metal )
E. Plotting 1 i
- 1. As an aid in reporting or interpreting results, reflector locat;ons may be determined by
. {
means of manual or computer assisted plotting methods.
{
a) Manual plots may be either full-sized or drawn to a convenient scale i i b) Computer plots may be eccomplished using LMTs "Complot 11", "PC Plot", l or other available sofhvare. )
c) All plots, regardless of method, shall identify the item and indication, and reference the examination report.
F. Alternate Reference System l 1. If the reference system of Figure 7 is not readily applicable to specific circumstances, an alternate system may be used, a) If an alternate system is used, it shall be documented on, or by attachment to, l the ISI UTExammation Report form.
X111. EXAMINA TIONRECORDS A. Report Forms
- 1. Each ultrasonic system calibration shall be detailed on an Ultrasonic Calibratien Report form.
a) Each calibration report shall be identified by a unique number comprised of the examiner's initials and a sequential number (i c., the third calibration for examiner J. F. longstreet would be JFL-003). ;
b) Attemate identification / numbering schemes may be used upon client request
. and/or approval.
- 2. An Ultrasonic Examination Report form shall be completed for each item examined.
a) Each report shall clearly reference the appropriate calibration report.
b) Each examination report shall be identified by means of a unique number which combines the last two digits of the year in which the examination is conducted and a sequential number (i.e., the 25th examination report during 1989 would be given the report number of 89 025).
c) Ahemate identification / numbering schemes may be used upon client request and/or approval.
< resr , Lambert MacGill Thomas, Inc. ..
uw2 Revision 23 l 3s . July 30,1996
_V1 Nondestructive Examination Procedure Page 21 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal l XIll. A. 3. An illustrattve example of the ISI UT Examinatwn Report report form is attached as l Figure 2.
B. Aunhary Records
- 1. Other records such as strip chart recordings and data plots may be generated as l
required. I a) Auxiliary records shall reference the applicable calibration or examination report.
XIV. REVIEW A. LMTReview
- 1. Examination reports shall be reviewed by the Level 111 Field Supervisor, or designated Level !!! representative, for accuracy and compliance with the requirements of this procedure.
a) The LMT review shall be documented by the reviewer's signature on the examination repon.
B. Chent Review
- 1. Following the LMT review, the examination report shall be forwarded to the client representative and his ANIl for review and acceptance.
a) Client acceptance of the exanunation report as submitted shall be documented by the signature of the client representative on the report form.
XV. STORAGEAND DISTRIBUTION A. Storage
- 1. Field storage facilities shall be adequate to provide reasonable safety and protection.
- 2. Access to field storage facilitics shall be limited to the Field Supervisor, his designated representatives, and client representatives, including the client's ANil.
D. Distribution
- 1. Exr.nunation reports shall become the property of the client upon sign-off by the client representative.
- 2. Additional documents. such as the final repon of examination activities, prepared off-site by LMT, shall be generated from copics of the onginal exammation reports.
l
. s. . -
resr - Lambert MacGill Thomas, Inc. uT. 2 j Revision 23 ;
. July 30,1996 M- Nondestructive Examination Procedure Page 22 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal APPROVED ULTRASONICINSTRUMENTS Manufacturer Model Balteau/Sonatest Masterscan UFD310 ,
Krautkramer USIP 11 LMT,Inc. Adam Plus Nortec NDT 131D Panametrics Epoch 2002 Panametrics Epoch II,2100 Panametrics Epoch IIB,2200 Stavelev Sonic 136 l
l l
l l .
I 1
Tabicl I
i Lambert MacGill Thomas, Inc.
TEST ur. 2 Revision 23 July 30,1996 M
Nondestructive Examination Procedure Page 23 of 35
- Ultrasonic Examination of Vessel Welds and Adjacent Base Metal i
~ ~ "
No, to scal ku~
- nnn n ,, p,, w , t ,ti l
l ll h ll l l 4 8 /~
.f$b ~M i 11 4 i
l l 11 11 f I ^$h.L 4k'#$k,7 i , , . . , --
4 : Y' a . $ . J
,f, .a $ h,., F ,
- . g
- __ a :
I e -
' _-a Wn ,
!g,. . Q. - =A.
<- .aN 5,4f.4dh.Y. !A -
H.N "t'D ;
. j
%..x. 4.
~e; i j 4, SNggr d2l%. '%
% We (f
soth gy BasicCeliivatiMfilock Thickr$ss
[Mg [T]1 ?
Hole Diameter
[ Note 3]
j hk2.0 ak 4. M hes d [3.02Obes Eftf 3/16 inch i
- g k,rou[0 inches M,(Q,hhs,or [t] I/4 inch g.0 t%gh B.0 inches Nehes,or [t] 5/16 inch lLhf0 through 10.0 inches 9.0 inches,or [t] 3/8 inch J >10.0 through 12.0 inches 11.0 inches or[t] 7/16 inch
- >l2.0 through 14 0 inches 13.0 inches, or [t] I/2 inch j >l4 0 inches [ Note 21 [ Note 21 i
- [ Notes
- ) (1) Minimum dimensions.
(2) For each increase in thickness of two (2) inches, or fraction thereof, the hole diameter shall
, increase 1/16 inch.
(3) The toleranas for: hole diameters shall be *l/32 inch; notch depth shall be +10*a and -20%;
hole location through the thickness shsil be e!/8 inch perpendiculanty on notch reflecting
, surface shall be *2 degrees. notch length shall be e1/4 inch.
(4) Clad shall not be included in T.
3 (5) Noiches: 2 inches long, 0.125 to o 250 inch wide,2%T deep mio base metal. Tolerances accordmg to I Note (3).
Figure 1 Basic Calibration Block l
)
i :
I
TEST Lai11bert IvlacGill Thomas, Inc. ur. 2 Revision 23 M Nondestructive Examination Procedure
. July 30,1996 Page 24 of 35 Ultrasonic Examination of Vessel Welds and Adiacent Base Metal SONGS ISI UT EXAMINATION REPORT R,,,,, 3,.
UNIT 2 Exara Des: ii Southern California Edison gy,,,,,;
CWCWMO- ; IS!Zans No;'
Centracw- ' PAD Corr-Procedure: Rev .J I? '
Field Chanse; _ 8 Ti r7I * -
EQUIPMENT DATA: Tony Gawa- Temp Prohr ( gg Manufacturer Brand / Mode l No itaarvSenal No R$O No Cahtweisen N Ms.
Couplant: ,[ Tm g,tn.,neni ,, 4 ; ..g. N orconneci=
l requency Wave Ehus kn&racNoos IJfR840L Manufacturer Sena1No (mhr) mede & sue dement ,? g atmenman Search Unit t: P "" 6'"'"* h'Paav n p'.,.
4
'1gJ" ,-
hh Unit i Reject %
Sensinvity. dD CALABRATION DATA: Mauun Tune - Signal to Noise Rado: Delay- a Cahhretion Block Reference liteck " beam 8pread?: 7 Page s Filter m mha SanalNo. Sanal No- rhi 4, g
- 4 Ampi.Causroa Accuracy I Type. Typr ch.ck;.. 9 5 sen..ikvar sou son 40 % 20%
stre: Tamp: Cher.k,[ g delia db 4 -12 +6 + 12 Tbcknest in % N5
.M 5,-: ? Asseptable 32 16 ha s 64
- 3N in/div Material.
Temp- , . .. Feh. $; Range % FSH as 24 96 96 ""'
Ascaal % nH Reimeted Anstee Re6 acted Angles '5 h"*w hty Calitratamar r ..Lm g S U t-
[- jw S U 1- 5 Wismal,1 100 90 80 70 60 50 40 30 Detector
~
20 40 *; - ,
/ SaEMI2 + '*'
Anate- / an M I.XAMINATION DATA: Asap! 5=cep M Path 8 Diat (j*..)dantantasiand
- **d Osp' Ga) ,7 SurfCandinun: , a l Ng n, iM Reportag Level. 'c DAC '
g* k@ f 7-( %y Evatustaan tswel 96DAC 'm '[f J ~ dw ;'3,N
\ ,.
Scan sensiuvity-.'m. db M Burdens: OD' % ..D g/V 3 h,E
' 6. $,# -. : l'f y- ey A
- s'g #y
- jf .
l R.ESULIS: vr % 'a IST Number - l~ "' En.amanauon Weld / Ares PECT hx:1 En VoirrC Trnoi Scan i Scan 2 Scan O been a Aspi.ht s . .g n ,. 4 I
REMARKS:
t- D.=: Re er: D.=:
Lavel g,,,,,,, D,m. sCeappr al: o.to Lewi- ANE Review Dew l
l Figurc 2:ISI UTExamination Repon r
- res, Larribert MacGill Thomas, Inc. ur- 2 1 ~ Revision 23 July 30,1996 M Nondestructive Examination Procedure Page 25 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal 1
s Lambert MacGill Thomas, Inc calibration Ultrasonic C&1ibration Report Report.~.4 Beam Spread Number n -
i' w 3 .a Beam Spread Data
? \'i.t[*f[**'
. Surface Distance. Sweep. Metal . Path at- t 9 [""$fyf.
,, % ~e
- Reflec- Leading (50s Maximus) Maximus Amplit'ude ~ J
- Tra111ng (505 Maximus) j tor Surf Sweep M. P. Surf sweepwM4P. V 5urf Sweep M. P.
T/4 / p h 1 2T/4 - #I OI7 l 3T/4 2.IE 64 l
PUWuut 4,bg- Oh th
%.s ,
..S* .;
p 1m .j$;, a:. y },
7ea " 9% %
A#%, MiZf 4& Mi%p Schematic Representatione p ,gjf k,'g lfe k
sj *Q; ' . f th' 1 g; 41 N $,, -
, TdAdid e <z y . . _
4 i e Leading i
TroliIng NOTE: Reflector s noved into bron path.
5 1st-calws.be rev 08/92 Page _of _
4 Figure 3: Beam Spread Determint. tion I
rssr Lambert MacGill Thomas, Inc. ur. 2 Rev..ision 23 t r . July 30,1996
_VI Nondestructive Examination Procedure Page 26 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal I
c f1 -
.=
j 2,J + .=' I a$s
,a5 .,%
,7' ? TJ'? 7 3
,A \ 4 9 A
-- ,e *M / @?ysk ,
$ :Ju, , m - .:,... s ,.
} 1 Circumferential o >
1
_ _ , _,. ,_ _ , .g.;p3 o a 4,
~- 'g: y" y a., , fE I3 weld w4 j.[ y 4 Dc i df 4.rn p &
i .x 5- a
- 1
- *gj c- ,
- sht., f[ % " _s Ri% ~ f. "%%g
.,e-wi g. yh, F '
e, . .s.
4 Th ;. h I/
4
@N nr __ ..
- h[kj$6/
%,A.edine~
ca .
Al;k ev v vh-9 #'
-- +
__y ~eE k t$ ~
h g ..
u a ,.
~ ~
(b[y h !? ,pw pF
%f , ,
a a
e a s.
yo 2
- E circumferenuai 'q h $ F g=
}i > g5
'$i weld -
y ;; =}
g }
~0 $
n G~
- }k= a G "
_ 7 _s 0
l Figure 4A: Examination Volume, Circumferential Welds
, , .. - l TEST Lambert MacGill Thomas, Inc. ur. 2 Revision 23
. July 30,1996
.M Nondestructive Examination Procedure Page 27 of 35 Ultrasonic Examination of Vessel Welds andAdjacent Base Metal i
l l
,4
- JE
.f
, .r ..
1 i
g~ , lQ., "e.l- . if l,t' J a %. .. ,1, 1 3
g dja 's '
m lf 1
.. tw
~
jys, F '
/i?
M,jk.P khA'jV 3 --'y' o
O l
i~b, A " %hY - l t '
l g a+ f' ,O ~ G3 Longitudinal n - 4jpg 9 <
i A,. .gy pp
% :t g as gg 1 gix" v.e ,"_ w I ge
- NQ, , .
y {PEL% ';. h 4 cE l
4((g g wp:
i e m,3C L e s
- $,ha a,e
*i
..,j$fmD}/
>. ag N@ Cladding y
\t j Figure 4B: Examination Volume, Longitudinal Welds
TEST La1 Tibet-t MacGill Thomas, Inc. ur. 2 Revision 23 M July 30,1996 Nondestructive Examination Procedure Page 28 0f 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal M ....
%% ::5, c .$
N 4 3 4,.
x v h 4 4.
g~w s s.
9 ,3a e s
/ -
%, p 9wl4w bit t ' y?
o l?
- f. y,o
$e g tL :[ tyj'pr m' ev
, 's ..,.
c-m/ , ' /'F u y**
nf fj g -k)]4., Y Qfk
{f, 4g, a "
%j:a '
74
$a4r c 4;yp?N '
AW ~(?,? p%Ma.,v. m h .,
,e 4Nb ~n
s .c
'd\ #y
. $ tl%tf m.i
.N
., %l k_ '
& - 5&
7et si o
19{%- w, 7
g g;
gi _ ,
I
. .r -
==
l ag
$ E
{
u ----- "{I l-G Circumferengig N N e
--*- i s s.s ,,
i
(
l l Figure 4C: Examination Volume, Spherical Head Circumferential and Meridional Welds j
~
rasr Lambert MacGill Thomas, Inc. ur. 2 Revision 23 M Nondestructive Examination Procedure
. July 30.1996 Page 29 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal l
pb 5
! 4 T,i' m, g i, s 4 J t, = sheit (or head) thickness 44 .k,,) ,g')
0 7 eg '.:; w..#
-s ir.,
af R1$ '
, , .y s fkyh,
'.1 3 U i, *
-o,g... ,1 I i .,
...p 4 h fWS
- .e
- ,63 %#y h .n gb io'a a .i il fI'p g
,, . l *' C D*A8,.g"W bd'd?'e ,
I d
a D7 yh e i: ,s.w, I
. d bl, 4 .,
4
- . {i' .
s .::qry' W
8 nun gdif *LM~ &
. , ~
fjI'
- F laming
- E a om. vol.
([ A - B - C - D - E - F -G - H- l EXAMINATION EXAMINATION j REGION l Note (111 VOLUME INote (2))
Shell (or head) adjoining region C.D-E F 4
Attachment weld region B-C.F G Nozzle cylinder region A-8.G.H.l NOTES:
(1) Enemination regions are iden4 tied toe the purpose of oifferentiating the acceptance standares in IWB-3512 (2) Examination volumes may be determined either by airect measurements on the component or by measurements based on design diawings.
l Figure 4D: Examination Volume, Class i Nozzle-to-Vessel Welds Full Penetration Corner Weld l rigure av. cxammauen v osume, uan a nozme-to-yesses w clos, run renetrauon toines vveau
?
l .
rus r Lambert MacGill Thomas, Inc. ..
ur. 2 !
Revision 23 j l gg . July 30,1996 i
_V1 Nondestructive Examination Procedure Page 30 0f 35 ;
1 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal 1
D p, y .v l
,1 4 .+. .
- sg )g ,%
. 4' - v-wu
,u ' ';*
'Ql R" ,
l + 'n1 A '*:,yARg
'cid ,
M s. -
3 4 l ta= shcIl(or ik tbness 1.,
$p$Q WQ l t.."
b'
'id.f W
l evf.
l .
k%f
_t /2,p. ;A,t/2p s 1 l ,
u 'b Yh YC lh 8
L '
s D "' I,
/* 6 ,li d.a p-a p 4$ Y t I.'
m,,* rg, L 1 q fs yap,u Q LN, -
.s .va.,
~ [' [
p l$
g% *FJN, k ell /
ciedding
)i O 2. $h * 'Y* where
,// k~M Y Ih. [ m
'*"' l
- ,!f!*$ I,% $Ghem.%f.
- ?
%[$*4 %
$ A-8-C* DOE-F-G-H EXAMINATION EXAENATION REGION (Note (1)) VOLUME (Note (2)l Shell(or heed) edsoining region CDEF Attechment weld region 8-C F-G Nozzle cylinder region A-B-G H, NOTES:
- 1) Examinetton regions are identified for the purpose of differentiating the acceptance standards in tWB 3512.
(2) Exemination volumes may be determined either by direct measurements on the component or by measuremente based on design drawings.
l Figure 4E: Class 1 Nozzle-to-Vessel-Weld, Flange Type Nozzle, Full Penetration Butt Weld i
i I
7ss7 , Lambert MacGill Thomas, Inc. ..
or. 2 Revision 23 July 30.1996 M Nondestructive Examination Procedure Page 31 of 35 Ultrasonic Examination of Vessel Welds and Adiacent Base Metal lM ls ,.
1l l #
l l %
um'y p: s aw_j
.y
..w :. g
+ 'nt- + .4 #,"@,
a';grf g, = riozzle well thickness l
+Qtgi a shell (or head) thickness N "
l ( ,fi5 \%'rA #
4.V
. ff 4 ,
- h. w 1 o Mr A
&M Pd d@&r 1d? . ,"{
YI LfP $
e r~,t2 .4% dk@jp~h,.
% ~h 4
l
' h,N + /2 t,kI .
.O me 1
f@,
[Y
,g($hg .
t =41 r o k" ?
w
- ,4 %)h % . .Tr n
2 d}gjj *
' g, 'I
- /h A
'M3'?J@'fI Clodding i wher.
present m, .
P- Exem. vol.
A-B-C-0-E-F-G-H EXAMINATION REGION INote (1)1 EXAMINATION VOLUME (Note (2)l Shell (or head) adjoirs.ig reg.on CDEFG Attachment we6d region B-C G Nozzle cyhnder region A B G-H Nozzle inside corner region M N-O-P NOTES:
(1) Examination regions are identified for the purpose of differentiating the acceptance standards in IWB 3612.
(2) Examination volumes may be determined either by direct measurements on the component or by measurements based on design drawings.
l Figure 4F Class 1 Nozzle-to-Vessel Weld Set-on Type Nozzle. Full Penetration Corner Weld
^
TEST Lambert MacGill Thomas, Inc. ur- 2 Revision 23 July 30,1996 N
Nondestructive Exarnination Procedure Page 32 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal f
,. E
? : *
.c
,.2 ,i,
~
.n
.u
, 5'~ff:r. -
ih ' .i.y
.g c %
.} y.o.. 'S+y a 4 T, 1
( I .5 Tr.v.,r s ta r J
F ~ ,;
i/4 in A-* #f e
-o-PE
- i /4 in.
f kbkb g.,E...
i.
f[f$t w$p.N ' '-*
Ah ' '"*:'g' N4 ..
e.g h .:y&.
h,[' -
~~
s n ~ .; ,
x qk ** 4lAks. %':L.. J i #
- [4 sq.
W
'f3%% El M ;4 "' a %, ** %~C@l7
- eup %,45pA wi>
' $ y,i
%F
,e no - 1/4 an.
-o e *
( F ~-
s 1/4 in.
- i p- t E sem woe .
- C-D-E-F *
(b)
CENER AL NOTE: Noaale sinos over NPS 4; weasel thickness over 1/2 in.
l Figures 4G (Top) and 4H (Bottom): Class 2 Nozzle-to-Vessel Welds;
- Nozzles without Reinforcing Plate, Vessel > 0.5 Inch Thick.
g 4
resr Lambert MacGill Thomas, Inc. ..
ur. 2 Revision 23 July 30,1996 M
Nondestructive Examination Procedure Page 33 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal
, t ,
. e-o ~
- jp-l 1 ..
? .
g A 4- .( .. T .7 g g n -
t, ,t 9
Ej ,g hg f
~
3 J y
A fi +
, 47u x": E '
l ,
g _q ( m
]I
{
u j.j J[.
h
? 4f .e i
.!.e f j { .9 , < 4 9 s 71 i V
4].18!ith d . l pk _
.a d! ,
s
, MrD5I.f
+4 ,
og Prx
- e. .w 49 .5, sR x M h /
l jff S
vg ,' $F F eig, 9 ( ji 7 ,
=[,h ', l 3
}c;n:
in '
gf u
j 13s s ii 1 11 i 1 l
l Figure 5: Indication Data Sheet 1
- . c , . . ..
s TEST > Lambert MacGill Thomas, Inc. ur. 2
' Revision 23
. July 30,1996 M- l Nondestructive Examination Procedure Page 34 0f 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal
- Lambert
- MacGill
- Thomas, Inc.
ios Nog toc.ao.
Testing = Erchoedng = Semco Tsaining jf "gExam
,, go par [.
1
.dd[. 1 NOTTFICATION OF REPORTABIM..IhfDYCATION)
PART I - LMT Findings $,
k LMT Job No.
a NDT Method: UT PT MT dIA ET b
.a ,o a a VT Description of Indication: (Skasch/pho e No J A*. .8TA ~ ..,
4 M$27 'Ud,%.
, e '.e At 4 5 ), # ,
1 4~ x-pyn R~5W %$h **MTb$Q
. W ~W ~ w
- a
- ?Q '(Nff signature of E7anuner/Coreficadon Level g
,h& NU Mika Datt 5f?% _"*0 % ssh! A %a $7 Signatureef'UdT?iendr4 6 g '
' 44 Data sk Npn y
sh Wh W5V a, -
Date Js onfication
~ CA Acq~h/) edged by ClientR,eprpsentatsve.
Nk d$
, f I}l.
) II examination I tii Findlags j af?.y' (Sketch / photograph attached Yes _ No J ;
i 4
Re<xammatiort Reference Signature of Examiner / Certification Level Date Signature of LMT Supervhor Date i Closed - Client Representauve Date l Figute 6: Nonfication of Reportable Indication
e
. ... s TEST 3 Lambert MacGill Thomas, Inc. uw2 Revision 23 July 30,1996 M
Nondestructive Examination Procedure Page 35 of 35 Ultrasonic Examination of Vessel Welds and Adjacent Base Metal 0
, , i
-) (+ 0~
g, < , L. -d h.
90 vd 43^? ~
T-H 27 0 -}- ,
i i
$,. 't; , .. TOWARD TOP
S . O*
j$ a.. h. ~? ~
W! %W CIRC WELD 18 0 4 "v' t *s (%Ils.,W /
PLAN VIEW . i. . . .. .
1
,f % .$k. d %,;
a
.I y e k$l m. - '
-n,
- ,h
" k
.ew 6.Qkk dAX g-pCWC 1% '%+
C CW (-) l SCdN SCAN B # f*2 '#
../ whs CIRC WE LONG. SEAM INTERSECTION A4 dry ~TA; 3 h4"
- g 'Q~* dj
, V RECORDING CONVENTIONS:
cire Weld-(S'6 N 2 *0" reference is vessel O' axis. Record location l in inches CW (+) or CCW (-) from O' reference. I
( f Record axial location in inches from weld { (+)
if above [ (-) if below q 1.ong Weld- 1 ELEVATION .o. reference is intersection with circ weld nearest bottom of vessel. Record location in inchesfrom0 reference.(+)ifCWside'ofweld q,(-) if CCW side of weld q.
l Figure 7: Reference System l
I h