Reusing chemical-cartridge respirators
Article Abstract:
Several factors influence the chemical adsorption and desorption of chemical-cartridge respirators. These are the greater volatility which increases the risk of vapor migration; concurrent adsorption of water and gas vapors; amount of material adsorbed onto the cartridge during the first use; prolonged storage time; and vapor type. Users are also advised to check for volatile chemicals that may desorb during nonuse and against two or more chemicals adsorbed sequentially before reusing respirators.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 2000
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A new biofilter gets its first real job
Article Abstract:
Envirogen Inc introduced its biotrickling filter at the North Island Navy Station by treating a methylene chloride-contaminated air stream from a spray-painting operation. In previous tests, the 5,000 ft3/min filter destroyed 99% of volatile organic compounds methyl ethyl ketone, acetone and methlylene chloride. The filter is structured as hollow, perforated plastic spheres with internal cross-members which provide a large surface area in which bacteria can metabolize the compounds.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 2000
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E-A-R introduces new E-A-Rsoft earplugs
Article Abstract:
Aearo Company's E-A-R division has launched its new line of earplugs which feature the softest foam available. The lines, which include E-A-Rsoft Yellow Neons and E-A-Rsoft Yellow Neon Blasts feature an innovative foam formulation that offers low-pressure comfort with the highest NRR available, NRR33dB. The earplugs are available in corded and uncorded and in two sizes, Regular and Large.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1999
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