Publication Date |
1995 |
Personal Author |
Moyer, E. S.; Peterson, J. A.; Calvert, C. |
Page Count |
30 |
Abstract |
Potential substitute organic vapor test agents were evaluated for use in certifying front mounted/back mounted canisters. Tests were conducted to identify agents and challenge concentrations which would prove equivalent to the present criteria for carbon-tetrachloride. Potential replacement agents included ethyl-acetate, pentane, n-hexane, and heptane. The most severe test condition was the 85% relative humidity preconditioned canisters test at 20,000 parts per million (ppm), 50% relative humidity, 32 liters per minute, 25 degrees-C and a 12 minute minimum breakthrough time at a 5ppm breakthrough concentration. Ethyl-acetate was eliminated because of its water solubility. Heptane and n-hexane were eliminated because of their lower flammability limits, which limited their challenge concentration test range. The effect of test relative humidity on as received canisters for pentane was minimal. |
Keywords |
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Source Agency |
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NTIS Subject Category |
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Corporate Authors |
National Inst. for Occupational Safety and Health, Morgantown, WV. |
Document Type |
Technical Report |
NTIS Issue Number |
199519 |