ML20246G894
| ML20246G894 | |
| Person / Time | |
|---|---|
| Site: | 07001113 |
| Issue date: | 06/22/1989 |
| From: | Winslow T GENERAL ELECTRIC CO. |
| To: | Bidinger G NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| References | |
| 25699, NUDOCS 8907140267 | |
| Download: ML20246G894 (3) | |
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'h Mr. G. H. Bidinger-Uranium Fuel Section Fuel Cycle Safety Branch i4;
.U.S.
Nuclear. Regulatory Commission f
Washington, D.C.
20555
Subject:
. Trip Report, 3/25-31/89, from A. Datta
Reference:
Letter from GH Bidinger to TP Winslow, 5/11/89
Dear Mr. Bidinger:
Thank you for sending a copy of Mr. Amar Datta's trip report to me.
We appreciate the observations and recommendations contained in his review regarding our fire protection program relative to the recently published proposed Branch Technical Position on fire protection.
With regard to item number II, "The Ambient Condition in the Hydrolysis /Defluorination Area", I am providing the following information in order to clarif3 our current practices and to give a.brief summary on current observations of recc.gnized authorities on work place ammonia exposure.
I hope you wi?.1 find this information useful.
The American Conference of Governmental Industrial Hygienists (ACGIH) and the American Industrial Hygiene Association (AIHA) has published literature which gives the most complete compilation of information on work place exposure, i.e.,
ACGIH:
TLV Guides and Associated Documentation AIE4:
Hygienic Guide Series
.'These references specify the following:
The lower. limit of odor detection is below 5 ppm 1
Odor can be identified, perceived, or recognized at concentrations as low as 1 ppm by some individuals.
Concentrations of 20-25 ppm are easily and clearly detectable by characteristic odor.
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.Mr.'G.
H.
Bidinger June 22, 1989 Page 2 Clearly there is reason to believe that sensory recognition and, in some cases, a strong smell of ammonia odor occur at much less than 50 ppm.
The current OSHA Permissible Exposure Level for ammonia is 35 ppm.
Prior to 1988, rulemaking effective in 1989, the Permissible i
Exposure Limit was 50 ppm.
I During the past several years, NF&CM has conducted routine industrial hygiene monitoring programs to determine and evaluate the ammonia levels in various locations within our fuel j
manufacturing facility.
Our evaluations included personal l
monitoring and area monitoring.
OSHA standards were based on i
eight hour time weighted average exposures or levels.
We have J
remained in compliance with the OSHA standards.
Personal exposures were in compliance with the OSHA standard.
Additionally, as a part of our overall safety and health program, we have conducted training on chemical materials used in the fuel manufacturing facility.
The training included properties of chemicals, use precautions, respiratory protective equipment use, and review of Material Satety Data Sheets.
If you would like to discuss this matter further, please contact me at (919) 675-5461.
Sincerely, GE NUCLEAR ENERGY WW T.
Preston Winslow, Manager Licensing & Nuclear Materials Management
/sbm