ML20058H613

To Chemistry Instruction:Operation of Ph Meter Safety-Related

ML20058H613
Person / Time
Site:	Grand Gulf
Issue date:	06/15/1982
From:	Wedgeworth B MISSISSIPPI POWER & LIGHT CO.
To:
Shared Package
ML20058H456	List: AECM-82-339, Forwards Addl Info Per NUREG-0737,Item II.B.3 Re post-accident Sampling Requirements,Ref NRC Question 281.9 ML20058H497 ML20058H520 ML20058H561 ML20058H613 ML20058H619 ML20058H629 ML20058H636
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.B.3, TASK-TM 08-S-04-107, 8-S-4-107, NUDOCS 8208030645
Download: ML20058H613 (5)

Text

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4?A'd C'.*LT NUCLEAR STATION CF.IMISTRY INSTF'.'CTION

Title:

Opera: ice of pH Mater No.:

08-5-O'-107 : Revision:

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1.0 INSR MINT DESCRIPTION 1.1 3eck=an Expandc=atic SS-2 pH Me ter Model Number 76007.

1.2 Leeds & Nerthrup Laboratory pH Meter, Model Number 7'413-20 1.3 Leeds & Northrup portable pH Me:er, Model Nu=ber 7417.

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2.1 3eckman Ins:ru=ent s Manual-I: pande=a:ic SS-2, Ins truction S16SC-A 2.2 Leeds and Northrup Instruction Manual, Medel 7413-IO(177621), Issue 1

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2.3 Leeds and Nor:hrup Instruction Manual, Model 7417 (177674) 2.4 Che=istry Procedure 08-S-03-1, Qualification of Chemistry Program 2.3 S:andard Metheds, 14th Edition', Section 424 2.6 Che=is try Procedure OS-S-03-07,' Cont rol of Cnemis try Support Ecuipment

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3.1 Always make reasurements wi:h the tes: solutien in a non-re tal con:ainer.

3.2 Place the ins:rument control :.nch to s:andby prior to removing the electrede frer :he solution.

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Instrument is normally left in stand-by ar.d does act normally recuire startup.

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-o 6.1.1 Make sure the function control switch is in the stand-by position.

6.1.2 Connect the line cord to a 50/60 H: power source i.f recuired and allow ten minutes for var =up.

Portable pH units utilize self-centained batteries for power.

6.2 Standardization / Functional Check NOTI i

Star.dardi:e ins:ru ent dail;. er prior ::

use; whiche.er is less frecuent.

6.2.1 Insure instrument, star:-up is in acecrdance yi:~ sec:icr. 6.1.

i.2.2 Verify instrumer.: functional check performed on required frecuency, and if applicable the calibration due date is within acceptable range.

6.2.3 If not already attached, plug in the =easuring and reference electrode leads.

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I 6.2.4 Immerse the electrode and a :her cme:er in ':cffer solutions wi:hin the range of expected samples, bu: at leas: 3 ;)H units apart.

6.2.5 Check to ensure tha: :he spar swi:ch is se: to receired pH range end the slope cecpensator dia'. is se: a: 1000, if instrumen: is

.so ecuipped.

6.2.6 Measure buffer solution tempera:ure and adjus: the te perature *C compensator to =easured tempera:ure.

Recove, rinse, and secure ther:cceter.

3 6.2.7 Determine buffer solutien pH fro = :e=perature versus pH table for the respective buffer.

p 6.2.8 Position function control swi:ch to measure position and adjust

, the standardize control until pF. deteesined in step 6.2.7 is indicated; pH indication for second buffer should be within.1 pH unit of the known value, if not, contact the Chemistry Supervisor.

6.2.9 Release function' con:rcl swi:ch to :he stand-by~ position.

6.2.10 Rinse and store electrode in demineralized water.

6.3 Anal',. sis 6.3.1 Verify ins:rumen: s:ar:ep.inac$crdancevi:h6.1.

l 6.3.2 lerify func:icnal check perferred Si:hin pr:per time fra:e.

Als o verify calibratien due da:es are not ex c a e d.e d, if applicable.

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'!e r i f-j st:ndardization of instrumen: has been perfor:ed.

6.3.4 Rinse electrode and thermometer in de=ineralized water.

Remove excess by blotting or gently shaking.

Imme rs e th em in t h e s a=pl e solution.

6.3.5 Measure the sample solution :emperature and adjust the Te=pera:ure

• C Co=pensc:or to ceasured temperature.

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6.2.o Remove, r nse, anc secure *:her=cmeter.

6.3.7 Position functie:. contre'. r.sitch to the = essure positica and read pH on 0 to 14 sezle.

Reccrd value.

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