|Document ID (ISN)||104211|
|Convention or series no.
||HSE Research Report 322
||Aitken R.J., Apsley A., Hemingway M.
Health and Safety Executive
||Performance of organic vapour filters: Effects of discontinuous and multiple vapour exposures
||HSE Books, P.O. Box 1999, Sudbury, Suffolk CO10 2WA, United Kingdom, 2005. vi, 33p. Illus. 7 ref. Price: GBP 20.00. Downloadable version free of charge.
||http://www.hse.gov.uk/research/rrpdf/rr322.pdf [in English]
||Organic vapour filters are extensively used in respiratory protective equipment (RPE) for providing protection against vapours present in workplace air. The filters eventually become overloaded and allow the vapour to breakthrough and expose the wearer to a toxic hazard. RPE wearers may be using filters that have passed their useful service life. Presently, there is no reliable method of assessing when breakthrough actually occurs in practical usage. The main purposes of this study were to quantify the effect of discontinuous vapour challenges on filter lifetime and to investigate the performance of filters in multiple vapour systems. A secondary objective was to determine to what extent these effects might be incorporated into models of filter behaviour. Vapours tested were isopropanol and cyclohexane. Various recommendations are made based on the findings.
||air purifying respirators; United Kingdom; filter testing; organic solvents; service life; volatile substances
||report; sorbent filters; isopropyl alcohol; cyclohexane
||E - Books, reports, proceedings
|Country / State or Province||United Kingdom|
Toxic and dangerous substances
|Broad subject area(s)