ML20080P498
| ML20080P498 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 11/16/1982 |
| From: | Bolin C, Painter R, Tuckman M DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML20080P419 | List:
|
| References | |
| CP-O-B-8100-02, CP-O-B-8100-2, NUDOCS 8402220563 | |
| Download: ML20080P498 (9) | |
Text
' -
Form 34731 (1041)
(Formerly SPD-1002-1)
DUKE POWER COMPANY (1)
ID No: CP/0/B/8100/02 PROCEDURE PREPARATION Change (s) l to PROCESS RECORD
- 2. Incorporated (2) STATICS:
Catawba (3)
PROCEDURE TITLE:
Chemistry Procedure for the Determination of Specific Conductivity (4) PREPARED BY:
Au,M DATE:
// -//- f 4 (5) REVIEWED BY:
[I DATE:
//- /f-P1 Cross-Disciplinary Review By:
((
(6) TEMPORARY APPROVAL (IF NECESSARY):
By:
(SRO) Date:
By:
Date:
(7) APPROVED BY:
Date:
fI (b(ll (8) MISCELLANEOUS:
Reviewed / Approved By:
Date:
Reviewed / Approved By:
Date:
l MASTER RLE B402220563 840215 PDR ADOCK 05000413 E
- g FORM SPD-1001-2 DUKE POWER LOMPANY NUCLEAR SAFETY EVALUATION CHECK LIST (1) STATION: Catawba UNIT: 1 X
2 X
OTHER:
(2) CHECK LIST APPLICABLE TO: CP/0/B/8100/02 (3) SAFETY EVALUATION - PART A The item to which this evaluation is applicable represents:
Yes No / A change to the statica or procedures as described in the FSAF or a test or experiment not described in the FSAR?
If the answer to the above is "Yes", attach a detailed description of the item being evaluated and an identification of the affected section(s) of the FSAR.
(4) SAFETY EVALUATION - PART B Yes No
/ Will this item require a change to the station Technical Specifications?
If the answer to the above is "Yes," identify the specification (s) affected and/or attach the applicable pages(s) with the change (s) indicated.
a (5) SAFETY EVALUATION - PART C As a result of the item to which this evaluation is applicable:
Yes No / Will the probability of an accident previocaly evaluated in the FSAR be increased?
Yes No / Will the consequences of an accident previously evaluated in the FSAR be increased?
Yes No / May the possibility of an accident which is different than any already evaluated in the FSAR be created?
Yes No
/ Will the probability of a malfunction of equipment important to safety previously evaluated in the FSAR be increased?
Yes No
/ Will the consequences of a malfunction of equipment I
important to safety previously evaluated in the FSAR be increased?
l_
Yes No
/
May the possibility of malfunction of equipment important to safety different than any already evaluated in the FSAR be created?
Yes No
/ Will the margin of safety as defined in the bases to any I
Technical Specification be reduced?
If the answer to any of the preceding is "Yes", an unreviewed safety question is involved. Justify the conclusion that an unreviewed safety l
question is or is not involved. Attach additional pages as necessary.
(6) PREPARED BY:
62M DATE:
//-h-f1, (7) REVIEWED BY:
(( d#
DATE:
//- 43V7-l (8) Page 1 of I
l i
i Fo m 18855 (3-80)
DUKE POWER COMPANY ALARA EVALUATION CHECKLIST (1) Station c c m.,h.
Unit:
1 X
,2 X
3 I
Other:
i (2) Checklist Applicable to:
CP/0/B/8100/02 (3) ALARA Evaluation Check those items below which were considered applicable during the preparation and r: view of this document.
Flushing and draining were used to minimize source - strength and con-tamination levels prior to performing an operation.
Permanent and/or movable shielding was specified for reduction of levels.
Use of permanent or temporary local exhaust ventilation systems was used for control of airborne contamination.
Operation was designed to be completed with the least practicable time spent in the radiation fiald.
Appropriate tools and equipment were specified for the operation to be performed.
The operation was designed considering the minimum number of people l
necessary for safe job completion.
l' Remote handling equipment and other special tools were specified to a
reduce external dose.
-Contamination - control techniques were specified.
The operation was designed to be conducted in areas of as low an exposure as practicable.
Additional ALARA considerations were:
l 1
l l
ALARA Principles were not considered since the procedure did not involve work in a radiation area.
(5) Prepared by:
(u./be/b Date
// - // - f b (6) Reviewed by:
dd Date
//- T-P 2 l
i
~ ~
. ~.,
CP/0/B/8100/02 DUKE POWER COMPANY CATAWBA NUCLEAR STATION CHEMISTRY PROCEDURE FOR THE DETERMINATION OF SPECIFIC CONDUCTIVITY 1.0 DISCUSSION 1.1 Scope This procedure describes the manual method for datermining the conductivity of aqueous solutions.
1.2 Principle Conductivity is a measure of a solution's ability to carry an electric current. The electrical conductance is a summation of the contributions from all the ions present. Conductivity depends upon the number of ions per unit volume of solution, the velocities with which these ions move under the influence of an applied electromotive force, the electrical charge the ions carry, and the solution temperature.
Therefore, if an applied electromotive force (E) is maintained constant, the current (I) flowing between ene electrodes in the electrolyte solutiun will vary inversely with the resistance of the electrolyte solution (R). The solution follows Ohms law (E = IR).
The reciprocal of the resistance (1_) is called the conductance and is i
R expressed in reciprocal ones (chos).
The standard unit of conductance is specific conductance (K) and is defined as the reciprocal of the resistance in ohms of a lem cube of liquid. The units of specific conductance are sho/cm. The observed conductance of a solution depends inversely on the distance, d, between the electrodes and directly upon their area, A:
1
- K
^
l R
d_
CP/0/B/8100/02 Paga 2 of 5 The Balsbaugh Laboratories series 910 conductivity monitors como equipped with four interchangeable conductivity cells with cell constants (A) of 0.01, 0.1, 1.0 and 10.
The instrument is equipped d
with a thermister (controlled temperature compensator) and a meter which gives direct readout in specific ccaductance (micrombos/cm).
1.3 Precision and Interferences Tha electrode surfaces of the conductivity cells must be kept. clean to ensure accurate readings.
1.4 Limits and Precautions Solutions with conductivities of 0.02 to 20,000 micromhos/cm are within the limits of this procedure.
o 2.0 APPARATUS 2.1 Balsbaugh Laboratories series 910 Conductivity Meter.
2.2 Conductivity cells with cell constants of 0.01, 0.1, 1.0 and 10.
2.3 Cell Selector with 4 channels.
2.4 Two sasple containers.
l 2.5 Cell stand suitable for storing conductivity cells in domineralized water.
3.0 REAGENTS 3.1 Potassium Chloride Stock Solution (0.1M) l Dry approximately 8 grams of Potassium Chloride (KC1) for one hour l
ct 110*C and then place in a dessicator.
'4 hen cool, weigh 7.4560 t 0.0001 grams of anhydrous KC1 in 100 t 10 ml of Super Q water.
In a volumetric flask, dilute the solution to one (1) liter with Super Q water. Store in a capped bottle.
Discard after 6 months.
L
CP/0/B/8100/02 Peas 3 of 5 3.2 Prepara a-series of standards by diluting suitable volumes of stock solution to 1000 ml t 0.1 ml with Super Q water in volumetric flasks.
ml of stock solution (0.1M) cone (M) 1 0.0001 10 0.001 100 0.01 These solutions should be prepared fresh when needed.
4.0 P30CEDURE 4.1 Ins,trument Zero Check (to be done daily) 4.1.1 Check the nachanical zero by placing the FUNCTION switch in the OFF position.
If necessary, adjust the meter needle position to zero with the zero adjustment screw.
NOTE:
For those models of the Balsbaugh 910 conductivity monitors not equipped with the CFF position, unplug the meter to check the mechanical zero.
4.1.2 Cbeck to verify that the meter reads full scale with the FUNCTION switch in the CHK position.
If not, notify a Chemistry Supervisor.
4.1.3 Select the desired conductivity cell by turning the s -itch on the call salector to the proper channel. With no solution in the sample cell, rotate the FUNCTION switch to the BL, GR and RD positions.
At each position, the meter should indicate zero reading.
If it does not indicate zero, notify a Chemistry Supervisor.
CP/0/B/8100/02 P ga 4 of 5 4.2 Determination of Unknown Conductivity 4.2.1 Select the proper conductivity cell by turning the switch on the' cell selector to the proper channel.
NOTE:.1 lists range values for each cell constant.
4.2.2 Rinse the conductivity cell with Super Q water.
4.2.3 Place the conductivity cell into a sample container containing sufficient sample to be analyzed.
4.2.4 Set the FUNCTION switch to the range corresponding to the expected solution conductivity. The meter reading should be on scale.
If it is very low on scale, set the FUNCTION switch to the next lower position.
If the initial reading is above scale, set the FUNCTION switch to the next higher position.
Read the meter and report as specific conductance.
4.3 Cell Response Determination (to be done weekly)
NOTE:
Each cell is to be checked weekly with a kcl solution of a j
known conductivity.
4.3.1 Select the desired conductivity cell by turning the switch l
on the cell selector to the proper channel.
l 4.3.2 Rinse the cell with the proper standard solution (Sect. 3.2) and place the cell in a sample container containing sufficient standard solution.
Cell Constant KC1 (M1 Cgnd. (micromhos/em)
Scale i
0.01 0.0001 14.94 t 0.3 Red 0.1 0.Q001 14.94 t 0.3 Green 1.0 0.001 147 t 3 Green 10 0.01 1413 t 30 Green
CP/0/B/8100/02 Pag 2 5 of 5 NOTE:
The ranges for the RD, GR and BL positions vary for each cell constant. Enclosure 6.1 lists the range of conductance (micromhos/cm) for each cell.
4.3.3 Set the FUNCTION switch to the range corresponding to the expected solution conductivity and read the conductance.
If measured conductivity is more than 2% different from the known solution conductivity, report the discrepancy to a Chemistry Supervisor.
4.3.4 Record results on Enclosure 6.2 to CP/0/B/8800/01.
3.0 REFERENCIS 5.1 Instruction Manual for Series 910 Conductivity Monitors.
Balsbaugh Labor,atori.es, Inc.
5.2 Standard Methods for the Examination of Water and Wastewater, 14th Ed., 1975, Part 205, Pages 71-75.
5.3 American Society for Tese.ing and Materials, 1978 Annual Book of !.STM l
Standards, Part 31, D 1125-77, Pages 116-124 l
l 5.4 Steam Production Department System Power Chemistry Procedure CP/26.
5.5 McGuira Nuclear Station Chemistry Procedure CP/0/B/8100/59.
5.6 Oconee Nuclear Station Chemistry Procedure CP/0/9/300/7.
6.0 ENCLOSURES 6.1 Range Values for Cell Constants.
l
Page 1 of 1 ENCLOSURE 6.1 CP/0/B/8100/02 RANGE VALUES FOR CELL CONSTANTS RANGE (micromhos/cm)
Cell Constant Black Scale Green Scale Red Scale 0.01 0-0.2 0-2 0-20 0.1 0-2 0-20 0-200 1.0 0-20 0-200 0-2,000 10.0 0-200 0-2000 0-20,000
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