ML20080P449

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Change 0 to Procedure CP/O/B/8100/17, Chemistry Procedure or Determination of Hydrazine
ML20080P449
Person / Time
Site: Catawba  Duke Energy icon.png
Issue date: 09/30/1983
From: Dickey C, Evans L, Tuckman M
DUKE POWER CO.
To:
Shared Package
ML20080P419 List:
References
CP-O-B-8100-17, NUDOCS 8402220548
Download: ML20080P449 (7)
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Text

~ -.

/ 8 Form 34731 (10-81)

(Formerly SPD 1002-1)

DUKE POWER COMPANY (1) ID No: CP/0/B/8100/17 PROCEDURE PREPARATION Change (s) o to PROCESS RECORD 4 Incorporated (2) STATION: carnubn (3) PROCEDURE TITLE: ch o 4 ,

  • r,. nr n -c.a,,, o fnv *ka no o-<-,-9 c e uvarn-ing (4) PREPARED BY: bum th_1hl b. b id11u DATE: 9/27/73 (5) REVIEWED BY:  ;& M A R.Ji<- DATE: *//1//A7 Cross-Disciplinary Review By: $

(6) TEMPORARY APPROVAL (IF NECESSARY):

By: (SRO) Date:

By: Date:

(7) APPROVED BY: 7)f.b. b = / MC -

Date: 7-30"83 ,

(8) MISC 21ANEOUS:

Reviewed / Approved By: Date:

1 Reviewed / Approved By: Date:

MASTER FILE O

8402220548 840215

{DRADOCK 05000413 PDR

.-~ -

\

Form 34634 (4-81) SPD-1001-;

DUKE POWER COMPANY NUCLEAR SAFETY EVALUATION CHECK LIST (1) STATION: co ,w, UNIT: 1 2 3 OTHER: m r.a (2) CHECK LIST APPLICABLE TO: CP/0/B/8100/17 (3) SAFETY EVALUATION - PART A The item to which this evaluation is applicable represents:

Yes No  ! A change to the station or procedures as described in the FS or a test or cxperiment not described in the FSAR?

If the answer to the above $s "Yes", attach a detailed description of the ite being evaluated and an identification of the affected section(s) of the FSAR.

t (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.

(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 previously 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 [Willtheprobabilityofamalfunctioncfequipment important to safety previously evaluated in the FSAR be increased?

, Yes No /Willtheconsequencesofamalfunctionofequipment important to safety previously evaluated in the FSAR e incrcased?

(. Yes No /May the possibility of malfunction of equipment I

important to safety different than any already evalucted in the FSAR be created?

Yes No /Willthemarginofsafetyasdefinedinthebasestoany Technical Specification be reduced?

g If the answer to any of the preceding is "Yes", an unreviewed safety question is involved. Justify the conclusion that an unreviewed safety question is or is not involved. Attach additional pages as necessary.

(6) PREPARED BY: bEfRd.h11L,.3.bA Af.u DATE: 9[2&/h3 (7) REVIEWED BY: A dS*W DATE: 7-1/ U (8) Page 1 of /

i

' Form 18855 (3-80) -s i

1 DUKE POWER COMPANY ALARA EVALUATION CHECKLIST (1) Station Catawba Unit: 1 2 3 -

Other: m v.a (2) Checklist Applicable to: CP/0/B/8100/17

, (3) ALARA Evaluation T

Check thcee items below which were considered applicable during the preparation and review 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 desf goed to be completed with the least practicable time spent in'the radiation field.

Appropriate tools and equipment were specified for the operation to be

, performed.

l The operation was designed considering the minimum number of people necessary for safe job completion.

Remote handling equipment and other special tools were specified to

[

reduce external dose.

r 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:

/ ALARA Principles were not considered since the procedure did not involve work in a radiation area.

(5) Prepared by: h_wy2h}7ib 1 b>$h Date 9/EIf/L3 (6) Reviewed by: Date 9-8, #3

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1.1 Scope i

~his procedure describes the celeriterric =e: hod for the de:ere:na.icn of hydrazine in water.

1.2 Principle P ra-dice:hyla=inobenzaldehyde produces a specific yellow condensa:ica reaction with hydra:ine as shown:

1 4 M

CH p0 N

j C .

+ H 3N-NH ~"

2 CH

  • 3

.- PAD -

2 f

. H H CH

' 3

f. CH( N 1 l /

C = N - N = C- N + 2H O 2

c N CH i

CH 3

< 3 para-dimethylc=inoben:: aldehyde anine f.yellev)

Tne intensity of the yellow color is proper icnal to the a=cun: cf i

hydra ine in the sample within the specified concentration range.

I ine hyaracines usec pri=arily as an oxygen scavenger according :c the following reaction:

i.

l N.H, - 0,, - 2 H,.Ci - N,.

L Hydra:ine does not react appreciably with oxygen below *.30*T. bu:

dece=peses rapidly over .'.0C*y, t

e e

-s CP/0/B/5100/17 Page 2.of 4 ine thermal decomposition of hydracine goes by two reactions:

2 N,H - 2 NH. - 2 S. - 3 H.

- - a .  :

4

.\ :..

. , y.s . .. . _

. h. ,

- - 4 a -

Since ammonia is produced by the decomposition, the pH is raised.

An additional benefit is the reduction of red iron exide to magnetite 6 Fe, O - S,H,

. . - ~ - 4 Fe,0, a. - - 2 H,0 - S,-

The magne:ite protects metal surfaces fro.t further corrosion. i Normally, a hydrazine residual of 0.010 to 0.015 ppm is sough; in the. final feedwater sample for condensa:e syste= protection. We:

, layup concentrations range from 50 to 500 ppe.

1.3 Precision and Interference Ane precision anc. accuracy or. :s..is method wi33.. be

1. a. .1 determined by-Q-Sum data.

1.3.2 The substances usually present in condensate and reactor coolant do not interfere with the tes ; however, the l

hydrarine' content may be ' diminished by oxidizing agents.

1.4 Limits and Precautiens .

j 1.4.1 Sample conce.: ration should be between 0.005 and 0.25 ppm

. hv. drazine . Higher concentrations mus: be .cro.cortionally .

I diluted prior to analysis. The lower limit of detectable

.hydrazine is 0.005 ppm.

1.4.2 Eye protection and rubber gloves shall be worn when working with paradimethylaminoben: aldehyde.

. 1.4.3 Hydrazine is a-primary skin irritant and a potential skin sensitizer; therefore, precautions must be taken to avoid skin contact. Eye protection lab-coat, and rubber gloves will be worn when working with hydrazine dihydrochloride and hydrazine containing solutions and samples. If skin contact occurs, wash the affected area immediately with soap and water.

2.0 APPAEATUS -

I 2.1 Spectrephotometer, with wavelength set a: 456 nm. NOTE: A11ov spectrophotometer to warm up for 30 minutes before use.

2.0 Erlenmeyer flasks, 125 ml 2.3 Graduated cylinder, 30 ml 2.4 The icilowin~a E.ocendorf r. ice
s with recuired tips:

I

2. .1 10 :1

. . . - - - - - - -. - . . ~. - .

.3 CP/0/3/8100/17 Paga 3 of a e.~..a n-z ...

2.a.3 50 ul 2.a.4 100 t1 -

.. .a .a 0 .. ..1

, 2.2. r pet, a el

1. t 2.6 Two matched 1.0 cm cuve :es 4

3.0 REAGENTS 3.1 Hydrazine Stock Solution (100 ppm)

Dissolve 0.3280 : 0.0001 grams of hydra:ine dihydrochloride (S_H.- 2H01)

.in 100 f 10 ml of Super-Q water and add 10 I 0.5 ml of concentrated HC1. i In a volume ric flash, dilute this solution to 1 liter with Super-Q water and mix. This solucion is stable for 6 men:hs.

3.2 Hydra:ine Reagen: (PAS) e< ,

Dissolve 8.0 i 0.1 grams para-dimot,hylaminoben: aldehyde in a00 : 10 ml of methyl alcohol and 40 i 0.5 ml of concentrated H01. Store in an amber bo::le. This solution is stable indefini:ely.

3.3 Hydrochloric Acid Solu: ion (l'. V/V)

In a volumetric flash, dilute 10 0.5 ml concen:ra ed I!C1 :: 1 li:er  !

with Super-Q water.

i.0 PROCEDURE 4.1 Stancard and Sample Preparation SOTE: Generation of a standard curve is not required if =e: hod is in curren: use; however. :wo 100 ppb standards are to be run daily for Q-Sum. A new standard curve should be prepared a: least once per year.

r f

4.1.1 Frepare a series of hydra:ine standards by dilutin; measured

, volumes of hydrazine stock solutien (Section 3.1) with 1*. V/V HC1.(Section 3.3) to produce 100 mi solutions of the desired concentra:icns as follows:

ul of 100 nom s:cek solution diluted to 100 m'. = com N.H.-

i 10 ul 0.010 ppm 25 ul O.023 ppm 30 ul 0.030 ppm 100 ul 0.100 ppm 250 ul 0.250 ppm y - .a.=mg----i~w e - ----ews *" - -*- '-

. -s CP/0/B/6100/17 Page a of 4 a.1.2 Transfer 50 : 1.0 mi of each standard. Super-Q us:er blank, and unknown sa:ple to separate Irlenmeyer flasks.

a.1.3 Add 5.0 = 0.5 mi of para-dice:hylamineben= aldehyde solu-ion (Section 3.2) o each flask containing either standard, blank, or unknown sample and =ix by swirling the flasks.

Let the mix:ure stand 10 =inutes, but no: more than 100 minutes.

a.2 Instrument Calibration

4.2.1 Adjus

the spectrophotometer to the 158 nm wavelen; b.

.2.2 Place the reagen: blank in the spectrephotometer in a 1.0 cm cuve::e.

1.2.? Se: nero absorbance.

4.3 Determination of Unknown Concentrations 4.3.1 Transfer the standards and/or samples into the 1.0 c= cuvette in appropriate order and read the absorbance en the spectro-photometer checking the zero with the reagen blank before each measurement. Standard concentration measurements are to be made in order of increasing concentration. Rinse the cuvette with the subsequent sample before each measurement.

a.3.2 Prepare a standard curve by plotting the absorbance of

. the standard versus the concentratien of the standards.

4.3.3 Determine the hydra ine concentra:icn of the sample by comparing the samp.le absorbance agains: the standard curve.

5.0 REFERENCES

3.1 American Society for Testing and Materials. 1978 Annual Book of ASTM S:sndards, Par: 31, D 1355-78, Page 354-357.

5.2 Westinghouse Electric Corporation. May 1974, Chemical Analysis Procedures.

Pittsburgh, PA. Page 4-15 to a-47.

5.3 McGuire Nuclear S:stion Chemistry Procedure CP/0/3/5100/12.

3.1 Steam Production Depar: men: Syste= Power Chemistry Procedure CPfaC.

5.5 DPC Hazardous Ma erials Exposure Control Manual.

6.0 ENCLOSURES None

_

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