| Document ID (ISN) | 53923 |
| CIS number |
90-912 |
| ISSN - Serial title |
0002-8894 - American Industrial Hygiene Association Journal |
| Year |
1989 |
| Convention or series no. |
|
| Author(s) |
Cohen H.J., Garrison R.P. |
| Title |
Development of a field method for evaluating the service life of organic vapor cartridges: Results of laboratory testing using carbon tetrachloride |
| Bibliographic information |
Sep. 1989, Vol.50, No.9, p.486-495. Illus. 44 ref. |
| Abstract |
The method involves using small carbon tubes (RCTs) packed with sorbent obtained from a respirator cartridge of interest. A sample tube is placed directly behind the RCT and periodically replaced. This tube acts as a backup section to the RCT. The sample tube can be brought back to a laboratory and analysed for the contaminant of interest. Alternatively, a direct-reading instrument can be placed at the exit end of the RCT to obtain "real-time" breakthrough information. The results, when combined with existing sorbent thories, can be used to predict the service life of a respirator cartridge. The advantage of using RCTs is that, unlike respirator cartridges, they can be taken into the field and used with traditional high-flow air sampling pumps. This method is designed to be able to determine the service life of respirator cartidges even when multiple contaminants are present in the workplace. Results of initial laboratory studies, using carbon tetrachloride as a challenge agent, indicated that RCTs were capable of predicting cartridge service life within an accuracy of ±15%. |
| Descriptors (primary) |
air purifying respirators; service life; sorbent filters; carbon tetrachloride |
| Descriptors (secondary) |
description of technique |
| Document type |
D - Periodical articles |
| Subject(s) |
Toxic and dangerous substances
|
| Broad subject area(s) |
Chemical safety
|
| Browse category(ies) |
Respiratory protection
Halogenated hydrocarbons
|
