ML20053C411
ML20053C411 | |
Person / Time | |
---|---|
Site: | Hatch ![]() |
Issue date: | 05/10/1982 |
From: | Nix H, Roger W, Rogers W GEORGIA POWER CO. |
To: | |
Shared Package | |
ML20053C406 | List: |
References | |
HNP-8033-01, HNP-8033-1, NUDOCS 8206020081 | |
Download: ML20053C411 (16) | |
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i HATCH NUCLEAR PLANT i
l PROCEDURE t
.l .. GUANTITATTVE FIT TFSTTNG --
-PROCEDUR!:. TITLE a
HNP-RO77
, PROCEDURE NUMBER l
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- 1. AR
, RESPONGIDLE SECTION 6
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f SAFETY RELATED ( ) NON-SAFETY RELATED ( X )
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APPROVED API'RDVED j REV. DESCRIPTION DEPT. PLANT DATE
' HEAD MANAGER
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A. PURPDFE
- 1. To instruct Chemical Radiation Technicians in the startup and operation of the Guantitative Fit Booth.
I 2. To establish parameters and procedures for administering
' Guantitative Fit Tests to employees required to wear respirators.
To document that an individual may obtain a proper seal with
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I a particular face mask.
- 8. G_ENERAL Guantitative Fit Testing is a means to establish a relative
' protection factor for an individual, who must wear a respirator,
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- The test cannot be used to assign higher protection factors than
[f stated in NUREG 0041. The test simply documents tha t an individual can obtain a seal while wearing a particular face mask.
g C. REFFRENCES E 1. NUREG 0041 Operational Manual for DynaTech FE 560A/562 Guantitative Fit A
2.
j Testing Apparatus.
3 D. TEST FOUIPMENT I 1. Model FE 560A-NaCI Aerosol Test System
- 2. Model FE 562-Debumidifier
- 3. Fiberglass Testing Booth
- 4. NaCI (reagent grade)
Os.p.
As be 5R* F_h$ -
- 5. Demineralized Water
. 6. Liquid Leak Detector (Snoop )
- 7. Propane (Instrument grade)
- 8. Aerosol Probe
- 9. MSA Ultraview Face Mask (Modified with sampling line
?' attached) t .
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0 See Title Page Georgia Power an 2 of 14 E. DESCRIPTION _OF FOUIPMENT
. 1. Refer to Operational' Manual for DynaTech FE 560A/562 4
Ouantitative Fit Testing Apparatus.
F. START ltP OF EGUIPMENT NOTE i During start up refer to Figures 1 and 2 for location of various valves, switches, gauges, lines, etc.
I.
- 1. Turn valve on Propane Supply Tank OPEN l
g; a. Check all fittings with Liquid Leak Detector.
T -
- b. Adjust propane flow pressure to 1/2 to 6 psig with e - regulator.
8 h 2. Prepare NaCI Solution
- a. Weigh to the nearest 0.1 gram, 20 grams of reagent 7 grade NaCI. (Non-Iodized) g . . ~
j b. To the measured 10.0 i .1 grams of NaCI, add one Liter of Demineralized H O.
2
- c. Stir Solution Vigorously, or shake in a closed
!. Container.
f.
j d. Allow to stand for 3-5 minutes before using.
- e. Fill Nebulizer Bottle to a level 1/2" below Nebulizer M SOOml )
Stem. ( n,/
NOTE DO NOT add new NaCI Solution to used 5cluIion. (Used solution tends to w sh $.
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i increase NaCI concentration). New NaCI Aerosol Solution should be used af ter /t/ 30% of old solution has been used.
l
- 3. Install Nebulizer into Mixing Chamber (#7, Fig. 2).
l l a. Connect 3/8" Tygon Tubing from compressor to inlet l nozzle of Nebulizer (vertical nozzle).
8
- .b . Place Aerosol Outlet Nozzle of Nebulizer through orifice of mixing chamber.
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See Title Pace 3 of 14 CAUTTON
- p. - - -
Before turning.on Power Switch of Aerosol Generating Unit (FE560A) insure Gain Control (High Voltage) is not set above 750 Volts.
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- 4. Turn on Power (# 8, Fig. 1).
- a. Allow et/15 minutes for warm up.
NOTE You may continue with Start Up procedure
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- 5. Select Internal or External Air. (# 24, Fig. 1)
- a. Unless Plant Air is used, Set to Internal Air.
i . 6. Turn Dilution Air Blower on. (# 15, Fig. 1)
. 7. Turn on Power to Dehumidifier. (# 3, Fig. 1) 8 SET Dilution Air Flow Rate. (# 16, # 17, Fig.1)
! a. Normal Flow Rate Setting is 2" H O (2" H O $b'12CFM)/
2 2 i NOTE If it becomes difficult to adjust Dilution Air to 2" H 30, adjust the 1 1/4" Gate Valve located in the bottom center of FE 560A Cabinet. This is the Dilution l Air Dump Valve. (#2, Fig.2) i
- 9. . Set flow balance on Debumidifier (#1, #2, Fi. g .1 ) .
- a. Normal Flow Balance Setting is O.
- 10. Turn on Generator Air (# 14, Fig.1).
l
' 11. Adjust Generator Air Pressure (#18, Fig.1).
- a. Normal Pressure Setting is 20 P.S.I.
- b. Check Nebulizer to insure Air Flow (water dro)1 will appear on bottle):
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Wait until full concentration has been obtained to ignite burner.
- 12. Switch on Circulation Fans'in Booth.
- 13. Lighting Burner
- a. Press Burner Switch (# 9, Fig.1). If System is on i Internal Air, Combustson Air Pump (# 1, Fig. 2) will i
. turn on. No propane is flowing into system at this time, so gas alarm light will blink and^ buzzer will turn on. (# 11, Fig 1)
- b. Adjust Combustion Air Rotometer. (# 25, Fig. 1)
(1) Normal settingis(bhti - 13 LPM.
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- c. Adjust sample flow rate. (# 27, Fig. 1) i (1) Normal setting in 1.5" H 0.
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- d. Press Ignition Switch. (# 10, Fig. 1)
! 1. Immediately after pressing switch check propane i flow rate. (# 28, Fig. 1)
- a. Normal Flow Rate is .5 .8 LPM, gas alarm should deactivate at 2> .4 LPM.
- 2. Ignition should occur within 30 seconds, if not, the gas alarm will activate. Shutdown System and check Propane Tank. Lines, Burner, Combustion Air Flow, and Ignition Spark Assembly and Thermocouple (# 11, Fig. 2).
CAUTION DO NOT touch Ignition Spark Assembly while in operation due to High Voltage.
(# 11, Fig. 2)
- 3. Ignition system will not operate for 3 minutes after gas alarm activates.
- r 4. To turn flame out, p
. turn off Burner SwiREFEEqu ix Cr:
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- 14. Remove Chimney and Inspect flame ( # 7, Fig. 1)
- a. Fiame should take on a "Guilted" appearance, with a small bright blue flame ( M/u/ 1/8"- 3/16" High )
^
appearing over each grid opening (disregard flame above flame restrictor on top of glass chimney)
NOTE
- If flame is not acceptable, adjustments are made with Combustion Air Rotometer
(# 25, Fig. 1), Propane f1rw (# 26,4 28, i Fig. 1), and Propane Needle Valve I (# 8, Fig. 2). Adjustments should not be necessary daily., If Adjustments become r necessary consult Operational Manual for DynaTech FE 560A.
- 15. Turn Power on Strio Chart Recorder. (# 29, Fig. 1)
E 16. Turn Chart Speed Knob to 2.5 cm/ min. (# 29, Fig. 1) f 17. Set Range Switch to 0%. (# 20, Fig. 1)
- 18. Zero chart paper. (# 29, Fig. 1) i
- 19. Insert ink pen into pen holder on Strip Chart Recorder.
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- 20. Switch on Intercom.
NOTE l
It is necessary to allow the NaCI concentration to reach equilibrium in ttje booth prior to calibrating equipment ( @ 45 minutes to an hour after equipment startup).
- 21. Calibration of equipment prinr to fit testing.
- a. Set Range 9 witch to 100%. (# 20, Fig. 1)
. b. Switch Sample Mode to " Upstream". (# 12, Fig. 1)
- c. Adjust Gain to obtain a 80-90% reading on the Percent Penetration Meter. (# 19, Fig. 1)
- d. Switch Sample Mode to " Clear". (# 12, Fig. 1)
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6 of 14 NOTE Allow Pe.rcent Penetration Meter to fall below 10% of scale before
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switching Range Switch to different positions. This prevents meter damage by not allowing meter to peg out.
- e. Switch Range Switch to 10% scale.
(1) Allow 2 minute purge of sample line.
!, f. Switch Range Switch to 1% scale.
(1) Use " Stray Light" control (# d3, Fig. 1) to adjust
- Percent Penetration Meter to zero,
- g. Switch Range Switch to .1% scale.
- (1) Adjust " Stray Light" control (# 23, Fig. 1) to obtain 25 10% but ed 20% of figli scale reading on strip chart.
NOTE If " Stray Light" Adjustments are made Gain Settings will be affected.
- h. Repeat steps a. - g. until repeatable readings are obtained which allow an 80%-90% " Upstream" reading on the 100% Range and 2> 10% but <C 20% " Clear" reading on the .1% range. These parameters are necessary to preform the actual fit test.
H. ADMINISTERING GUANTITATIVE FIT TEST (hh
- 5. 5 6m a s na d 4 V==
l 1. Instructions to subject being tested.
- a. Don the modified respirator. W =3 (1) Assure that subject dons respirator properly and performs negative pressure test for proper sea).
- b. Open only one Airlock door at a time when entering and exiting booth.
- c. Cover his sample line inlet'until he connects it to
- ' downstream sample outlet in booth.
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- d. Leave enough slack on sample line connected to mask so subject can perform exercises without pulling sample line loose from booth fitting.
- e. Inform subject that aerosol in booth is harmless.
- f. Direct subject's attention to " Fit Test Exercises" sign in bcath.
- g. Instruct subject to enter booth.
- 2. Set Sample Switch to " Clear". (# 12, Fig. 1)
- a. Take a one minute baseline reading (9 ) on the .1%
1 7ange.
I
- b. Label baseline reading on strip chart by marking time
. duration with hash marks or line, and identify by writing the symbol (8 ).
1 5
- 3. Set Range Switch to 100%. (# 20, Fig. 1)
- 4. Set Sample Switch to "Upr cream". (# 12, Fig. 1)
! a. Wait rt/ one minute for sample line to reach equilibrium.
- b. Take a one minute ambient reading (A ).
1
- c. Label ambient reading on strip chart by marking time duration with hash marks or line, and identify by writing the symbol (A ).
1
- 5. Set Sample Switch to " Downstream". (# 12, Fig. 1) a NOTE Spiking will occur immediately after switching to " Downstream". This is normal and should be labeled as " Downstream Spike" on strip chart.
- 6. Set Range Switch to 10% range. (# 20, Fig. 1)
- a. Allow 2 minutes to pass before switching to lower range. This allows sample line to purge. =
- 7. Set Range Switch to .1% range. (# 20, Fi<
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8 of 14 NOTF At this point the fit test exercises should begin, and be recorded on the .1% range.
The test may be performed on the 1% range if the .1% range cannot be stabilized.
- 8. Begin Fit Test Exercises
- a. Run each test exercise for one minute and label each exercise seperately on strip chart.
(1) Normal Breathing (2) Deep Breathing
- (3) Move head side to side 2
- a. Insure that subject does not pull sample line e from fitting.
2 (4) Move head up and down (5) Frown (6) Talk 4
- 9. Ask subject to intentionally break his seal momentarily,
- a. Label " Intentional Break" on strip chart.
- 10. Set Sample Switch to " Clean" (# .t 2, Fig. 1).
- a. Obtain second baseline reading (B )
2
- b. Label (9 ) on strip chart.
2
- 11. Set Range Switch to 100%. (# 20, Fig. 1).
- 12. Set Sample Switch to " Upstream". (# 12, Fig. 1)
- a. Obtain second Ambient Reading (A ).
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- b. Label (A ) on strip chart. hSN
- 13. Subject exits Fit Rooth.
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9 of 14 NOTE Facemask must be sanitized with isopropyl alcohol prior to next use.
- 14. Identification of Fit Test Record
- a. Stamp strip chart with rubber stamp containing the following dato:
(1) Name
! (2) Social Security No.
(3) Date E ~ (4) Operator y .
(S) Average Baseline
=
3 (6) Average Ambient 1
(7) Average Exercise 1
J (8) Remarks (glasses, scars, dentures, etc.)
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- b. Record subjects Name, Social Security No., Date, Operator, and Remarks.
- 15. Calculate Protection Factor
- a. Determine average of two baseline readings B= (B +B )/
1 2 2
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- 1. b. Determine average of two ambient readings A= (A + A )/
1 2 2
. c. Locate and label the maximum signal peak for each exercise on strip chart.
- d. Determine average of Fit Test Exercises E=E +E tE +E tE Protection Factor = _
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- e. Record data on strip chart in spaces provided by rubber stamp.
- 16. Determine whether subject has passed or failed.
- a. Use the following criteria: $1 50 protection factor; Pass, and << 50 p rote ction factor; Fail.
- b. Record pass or fail on strip chart.
- 17. Remove strip chart paper from recorder and attach individuals results to cover sheet and file record for
- documentation.
I. EGUIPMENT SHUTDOWN
{ 1. Turn Durner Switch off. (# 9, Fig. 1)
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- 2. Turn Dilution Air Switch off. (# 15, Fig. 1) i f . 3. Turn Generator Air Switch off. (# 14, Fig. 2) '
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- 4. Turn Power off. (# 8, Fig. 1) 1
- 5. Turn Strip Chart Recorder off. (# 29, Fig. 1) i
! 6. Turn Circulation Fans off. i
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- 7. Remove Nebulizer from mixing chamber, pull air supply Tygon .
. Tubing off. Remove nebulizer from bott1e and rinse off with L demineralized water.
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- 8. Remove glass chimney (# 10, Fig. 2) and flame restrictor from burner assembly. Clean chimney with soap and water.
P CAUTION Allow time for burner components to cool. .
1 l 9. Remove burner grid from burner and clean with :
demineralized water. l
- 10. Stove nebulizer and burner grid in demineralized water when not in use.
- 11. Remove Silicone rubber sample line in peristaltic pump
(# 13, Fig. 2) and inspect for leaks or worn spots.
Clean line with demineralized water. Prio a p1Fj ,
insure line is dry before reinst ps
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J. MAfMTENANC,E_OF FGUIPMFNT
- 1. Replace peristaltic pump hose monthly or sooner if signs of wear indicate.
- 2. Clean sample pump flow measurement orifice (# 18, Fig. 2) with domineralized water weekly.
- 3. Inspect and test hepafilter-weekly.
- a. Hepa test
. (1) Turn Dilution air (# 17, Fig. 1) to full flow (clockwise).
(2) Turn Dump Valve ( # 2. Fig. 2) until Dilution air
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gauge is full scale pegged.
2 (3) Adjust Dilution air to 2" of H O. (# 17, Fig. 1) j 2
(4) If unable to adjust to 2", change hepafilter.
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- 4. Remove NaCI from sample lines (as needed).
- a. Adjust sample flow to maximum setting (# 27, Fig. 1) while in the " Clear" sample mode.
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- b. Sharply rap burner base, sample lines, and valves with 2 a non metallic object,
- c. Keep sample flow at a maximum for one to two minutes.
- 5. Clean sample lines on face masks weekly or replace lines if necessary.
K. TROURIE SHOOTTNG CF FOUTPMENT
- 1. Refer to Operational Manual for DynaTech FE 560A/562.
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See Title Page 12 of 14 LEGFND FOR FIGilRFS Fiqure 1 Eigure 2
- 1. Balance Adjust 1. Combustion Air Pump
- 2. Flow Dalance Gauge 2. Dump Valve
- 3. Power on (Dehumidifier) 3. Propsne Inlet
- 4. Fuse 4. Air Compressor
- 5. Return Air Inlet (2) 5. Hepa Filter 6 Aerosol Outlet 6. Nebulizar
- 7. Chimney 7. Mixing Chamber
- 8. Power on Generator 8. Propane Needle Valve
.9. Burner on Switch 9. Purner 2 10. Ignite Switch 10. Glass Chimney
? 11. Gas Alarm and Burner Temp. 11. Ignition Assembly Lights j 12. Sample Switch (3 modes) 12. Sample Line
- 13. Sample Air Gauge 13. Peristaltic Pump
- 14. Generator Air Switch 14. Clear Filter
- 15. Dilution Air Switch 15. Return Air Inlet (2)
. 16. Dilution Air Gauge 16. Aerosol Outlet
- 17. Dilution Air Control 17. Dehumidifier Drain Hose
- 18. Generator Air Control 18. Flow Measurement Orifi ce 5 19. Percent Penetration Meter l 20. Range switch li 21. Fuse
!. 22. Gain
- 23. Stray Light
- 24. Combustion Air Switch
- 25. Combustion Air Rotometer
- 26. Propane Control
- 27. Sample Air Control l 28. Propane Rotometer
- 29. Strip Chart Recorder
- 30. Propane Inlet *h
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