ML20154J433
| ML20154J433 | |
| Person / Time | |
|---|---|
| Site: | 07001113 |
| Issue date: | 04/18/1984 |
| From: | Miller R GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20154J343 | List: |
| References | |
| FOIA-85-158 B-40.1-01, B-40.1-1, NUDOCS 8603100599 | |
| Download: ML20154J433 (10) | |
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EXHI3IT D WILMINGTON MANUFACTURING DErnATHENT QUALITY INFORMATION EQUIPMENT PLAN t
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SUBJECT:
NUMBER:
B-40.1 STATION:
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REVISION: 6 N/A SCALES AND BALANCES r
ISSUE DATE:
PAGE 1 8
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t 1.0 SCOPE This document outlines the responsibilities, calibrating procedures and i
operating instructions for scales and balances in FMO.
2.0 REFERENCES
2.1 WMD Practices and Procedures Number s 70-25, " Scale and Balance i
i Program", and 140-5, "Special Nucliar Material Measurement Sys-tems".
l 2.2 Equipment Operating and Maintenan:e Manuals.
2.3 The WMD Fundamental Nuclear Material Control Plan.
l 2.4 Applicable Process Requirement and Operator Document (PROD).
i 2.5 Regulatory Guide 10CFR70.57.
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3.0 DEFINITIONS 3.1 Accountability Scale - Any measurino instrurent that is used to cetermine the weignt of special nuclear material for determining the SNM content on inventory, receipt or shipment.
1 3.2 Accountability Balance - Any measuring instrument that is used to determine tne weignt of special nuclear material which will be used for an analytical determination.
3.3 Calibration - The comparison of a scale, balance or weight with a reference standard or with equipment of a closer tolerance to de-tect and cuantify ina: curacies and to report and eliminate those I
InaccuraCles.
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SUBJECT:
SCALES Ahv BALANCES NUMBEn.
B-40.1 PAGE 2 REY.:
6 0F 8
3.4 Standard Weights - Weights which are identified and calibrated traceaole to tne National Bureau of Standards.
3.5 SNM - Special Nuclear Material.
4.0 RESPONSIBILITIES 4.1 Control and Instrumentatien Succort (C&!S) 4.1.1 Maintain all records concerning scale, balance and weight calibration for a period of five years.
4.1.2 Affix control numbers to all scales, balances and weights and maintain them in the computerized inventory and calibra-tion recall system.
4.1.3 Maintain accountability and ncnaccoun: ability identification for all scales and balances.
4.1.4 Provide calibration and maintcnance services of all scales, i
balances and weights.
4.1.5 Maintain a permanent record on each secle containing the following information:
.1 Scale manuf acturer, model numbcr and serial number.
.2 Location and use of scale.
.3 Calibration and maintenance data, perscn performing, date and results.
4.1.6 Maintain a permanent record on ez;h calibration check weignt containing the following information:
.1 Serial number and wet.;ht.
.2 Assigned area and Cata.
.3 Calibratien data traceable to the National Bureau of Standards.
4.1.7 initiate scale and balance t'on-Cenformance Reports (NCR) and assign organizational rascunsibility for disposition.
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SUBJECT:
SCALES And BALANCES NUMBta:
B-40.1 PAGE 3 l
REY.:
6 0F 8
4.2 The user unit has the responsibility to:
4.2.1 Perform calibration checks per applicable process require-ments and operator document or other designated station procedures.
4.2.2 Report scales, balances or weights having out-of-date cali-bration stickers to CLIS.
4.2.3 Notify C&!S of any cut-of-calibratica conditten, or scale malfunction.
4.2.4 Insure that all calibration check weights are kept. lean anc free from fcreten matter.
4.2.5 Report scale relecations to C&IS.
4.3 Licensing and Nuclear Materials Management (N"?-1) has the responsi-bility to:
4.3.1 Define and identify scales fcr accountability status ano report this status to C115.
4.3.2 Disposition scale ar.d balance N:n-Conformance Reports (NCR) affectina accountability and jointly with FOCE dispositten those NCR's that ef fect both cccounttbility and quality.
5.0 E QU I PE 'iT 5
5.1 Scales and balances are divided into t.c c:tegories, accountabilit.
and non-accountability.
5.2 Accountability and non-acccuntability status is signified by large, brilliant labels.
e 6.0 STANDA205 6.1 Standard weights are provided which are used to coniter scale accu-racy.
Two sets of stancard weights are used as follows:
6.1.1 Calibratten check weignts, trac 2tble to fibs, and used by the operator.
6.1.2 Calibration weights, traceablc to f4BS, and uscd for monthly calibratien.
7.0 PARAMETERS flot applicable.
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SUBJECT:
SCALES A...
BALAf1CES NUM8(... B-40.1 PAGE 4 REV.:
6 0F 8
11 8.0 CALIBRATI0ff 8.1 All in-use scales and balances will be calibrated with standard weights traceable to the fiational Bureau of Standards at intervals not to exceed the following:
8.1.1 Accountability scales, with the, exception of the UfM tanh truck scale, will be calibrated The Uf1H tank truck sr. ale will be calibrated at leas
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8.1.2 Accountability and non-accountability balances (mechanical and electronic) will be calibrated fion-accountability scales will be calibrated at least g f
8.1.3 i
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8.2 Prier to utilizing certified weights for calibrations or calibra-ting checks, these weights will be put into service by inserting the data on the weight into a computer system.
1 8.2.1 The certification of standard weights shall be valid for Mfrem the date put into service.
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8.2.2 UF,, artifact standards GEW-166 and GEU-192 will be used as j
working standards.
GEW-058 and gel-002 will be used as reference standards.
The working standards will be verified against the reference standards every
, The j
reference standards wi 1 be verified gainst the fl.B.S.
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standards once e/ cry l
l 8.3 fiechtnical and electronic platform scales, except Bridgcmaster
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truck scale, shall be calibrated as follows:
8.3.1 All weights used for calibration shall have a valid certif t-cation and shall be Class F or better.
j 8.3.2 All data shall be recorded en the form shown in figure 1.
J 8.3.3 Fill out the scale identification and status information, i
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8.3.4 Zero the scale and record the zero reading.
I 8.3.5 Place a certified weight or ccmbination of weights equal to 15-25% of the scale capacity on the platform. Record the weight (s), serlai nu.T.ber(s) anc the scale reading, i
I 8.3.6 Repeat 8.3.5 using certified weir,5ts equal to 40-50%, 65-75%
and 90 100% of the sce.le capacity, f
8.3.7 Ccepare the scale readtngs with the corresponding certified I
weights to determine if the scale meets the specified toler-ance.
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SUBJECT:
SCALESk... BALANCES NUMB 6..
8-40.1 PAGE 5 REV.:
6 0F.
8 8.3.8 If the scale does not meet the specified tolerance, make the necessary adjustments and/or repairs and record the work performed on the back of the form.
After completion of the adjustment or repair, repeat 8.3.3 - 8.3.7.
8.4 Hanging load cell scales shall be calibrated as follows:
8.4.1 All weights used for calibration shall have a valid certifi-cation and shall be Class F or better.
8.4.2 All data shall be recorded on the form shewn in Figure 1.
8.4.3 Fill out the scale identification and status information.
8.4.4 As applicable, use the selector switch on the switching module to select the load cell to be calibrated.
8.4.5 Adjust the corresconding zero Ancb on the switching nocule or electronics unit to cbtain zero.cn the digital reacout and reccrd the zero. eading.
8.4.6 Place a certified weight or ccebinction of weights equal to 15-25% of the scale capacity on hcok of the scale.
!!ake sure this weicht is frcely suspended.
Reccrd the weigh;(s),
serial nutter (s) and the scale reading.
8.4.7 Repeat 8.4.6 usinc certified weights equal to 40-50%, 65-75:
and 90 95% of scale capa:ity.
8.d.8 Compare the scale readings with *.he correspor.dtng certified weights to determine if the scale meets the specificd manl-facturers tolerance or 20 grc s onichever is less.
8.4.9 If the scale does not reet the trecified t:lerance, make the necessary adjustments and/cr repairs and reccrd the work done on the back of the form.
After ::mpletion of the ad-justment or repair, repeat 8.4.2 through 8.4.8.
8.5 The UF g cylinder dock scale shall be calibrated as follows:
8.5.1 The artifact mass standard as defined in AN5! fl.15.18 shall be used for calibration of the OF cylinder dock scale.
6 8.5.2 All data shall be recorded on the form sho n in Figure 1.
3.5.2 Fill out ttu scale identification and status infcrmation.
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SUBJECT:
SCALES AN.,ALANCES NUMBE I 8.*0.1 PAGE 6 REV.:
6 0F 8
8.5.4 Zero scale reading with the zero button on scale.
8.5.5 Place the empty artifact standard on scale.
Record the artifact weight and serial number and the digital readout of the scale.
8.5.6 Place the full artifact standard on scale.
Record the arti-fact weight and serial number and the digital readout of the scale.
8.5.7 Compare the digital readouts with the artifact wei determine if scale meets the specified tolerance. ghts to l
8.5.8 If the scale does not meet the specified tolerance, make the necessary adjustments and/or repairs and record the work performed en the back of the form.
After ccmpletion of the adjustment or repair, repeat 8.5.3 thrcugh 8.5.7.
8.6 Chemet Lab mechanical and electronic balarces shall be calibrated as follcws:
8.6.1 All weights used for c lfbration shall have a valid certifi-cation and shall be 5-1 or tetter.
l 8.6.2 All data shall be recceded on the form shown in Figure 2.
l 8.6.3 Fill out the balance serial number, +cdel number and serial l
number of the weight or kit teirs usec.
l 8.6.4 Inspect weights to be sure they are clean, mirror bright, and corroston free.
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8.6.5 Clean balance pan and level balance.
8.6.6 Zero the balance and place a weight equal to about 25% of balance capacity on the balance pan.
Record balance read.
ing.
8.6.7 In secuence, place a wel:ht equal to about SC", 75% and 100%
of the balance capacity on the balance pan.
Record each l
I balance reading tr. the appropriate ro.s and column.
8.6.8 Repeat 8.6.6 and 8.6.7 five times recording each balance reading in the a;;ro::riate row and column.
t 3.6.9 Perfor:1 the y,
c, i calculation', and ccmpere t with t max.
to assure no si nifictr.t differcnce between the mean of the 9
weighings and the $ttndard weights at a 99.9% Confiden;c l
level.
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SUBJECT:
SCALES A..s BALANCES NUMBtn:
B-40.1 PAGE 7 REV.:
6 0F 8
8.6.10 If any out-of-tolerance conditions ext:t, make the necessary adjustments and/or repairs and repeat 8.6.6 through 8.6.9.
8.7 Balances other than Chemet Lab balances snall be calibrated in accordance with 8.6 except the reading will ta repeatad only two times for each weight.
8.8 The red loading scales shall be calibra;cd as follows:
8.8.1 All weights used for calibration shall have a valid certifi-cation and shall be Class F or better.
8.8.2 All data shall be recorded on the form shown in Figure 1.
8.8.3 Fill out the scale id2ntification and status information.
8.8.4 Inspect the "V"
tray to make sure that it is clean and free of any foreign material.
8.8.5 Center the "V" tray and operate the "V* tray lif t mechanism to insure the tray is positioned properly in both the up and oown positions.
8.8.6 Using the zero adjustment control on the electronics unit, zero the digital readoet and record.
8.S.7 Place a 1000 gren weignt in the "V" tray.
Record the weight, serial number and the scale reading.
8.8.3 Repeat 8.8.7 using weignts ecual to about 50%, 75% and 100%
of the scale capacity.
8.8.9 Ctepare the stale readings with the corresponding weights to determine if the scale meets the specified tolerance.
8.S.10 If the scale does not meet the specified tolerance, make the necessary adjustments and/or repairs and record the kerk performed en the back of the form.
After completion of the adjust.ents or repairs, repeat 8.6.6 through 8.8.9.
8.9 The Bridgemaster motor truck scale shall be calibratcd as follows:
8.9.1 All weights used for calibration shall have a valid certif t-cation cnd shall be Class F or better.
6.9.2 All data shall be recorded en the form shown in Figure 1.
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SUBJECT:
SCALES A..s BALANCES NUM6u..;
8-40.1 PAG: 8 REY.:
6 0F 8
8.9.3 Fill out the scale identification and status information.
8.9.4 Zero the scale and record zero reading.
8.9.5 Place the loaded truck on the four segments of the scale platform, record the scale reading for each segment.
8.9.6 All four readings shall be within 0.1% of each other.
If this tolerance is not met, make the necessary adjustments and/or repairs and record the work performed on back of the fo rm.
After completion of the adjustment or repair, repeat 8.9.4 through 8.9.6.
8.9.7 With the truck off the platform, place weights equal to 3,000 pounds on the platform.
Record the scale reading.
8.9.8 Repea
8.9.7 for weights equal to 6,000, 9,000 and 12,000 pounds.
8.9.9 Compare the scale readings recorded in 8.9.7 and 8.9.8 with the corresponding certified weights to determine if the scale meets the specified tolerance.
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8.9.10 If the scale does not meet the specifici tolerance, make the necessary adjustments and/or repairs and recore the work performed on the back of the form.
Af ter cc.?pletion of the adjustment or repair, repeat 8.9.4 through 8.9.10.
9.0 OPERATIC 4 Operaticn of the scales and balances shall be in accordance.<ith appil-cable crocess requirements and operator documents.
10.0 O!STRIBUTION Standard "8".
Manager, Chemet Lab.
Manager, Licensing and fluclear Paterial: Mtnagement.
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