[abstract] CHEMICAL CONTAMINATION FOLLOWING PAINTING OF A HYPERBARIC CHAMBER.

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[abstract] CHEMICAL CONTAMINATION FOLLOWING PAINTING OF A HYPERBARIC CHAMBER.

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Title: [abstract] CHEMICAL CONTAMINATION FOLLOWING PAINTING OF A HYPERBARIC CHAMBER.
Author: Lillo, RS; Morris, JW; Caldwell, JM; Balk, DM; Flynn, ET
Abstract: The Naval Medical Research Institute currently conducts hyperbaric research in a man-rated chamber complex (MRCC) originally installed in 1977. An early problem of organic chemical contamination, believed due to faulty initial application of paint to the MRCC, eventually diminished to acceptable levels following decontamination procedures and chamber use (1). However, significant engineering alterations to the MRCC and rusting of some sections of its interior necessitated repainting, which was completed in 1988. During the painting process, great care was taken in selecting an appropriate paint (polyamide epoxy) and in insuring correct application and curing procedures. Only very low levels of hydrocarbons were found in the chamber atmosphere prior to pressurization tests following painting. After these-tests, significant chemical contamination was found. The primary contaminants were the aromatic hydrocarbons, xylenes (which were a major component of both the primer and topcoat paint), and ethyl benzene. The role that pressure played in stimulating the offgassing from the paint is not clear; offgassing was observed to be similar over a range in chamber pressures from 20-1000 fsw. Scrubbing the chamber atmosphere with the chemical absorbent Purafil was effective in removing the contaminants. Contamination has been observed to slowly decline with chamber use and is expected to continue to improve with time. 1) Weathersby et a1. 1986. NMRI Technical Report 86-54. (Supported by NMRDC Work Unit 63713N M0099.01B-1005).
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Annual Scientific Meeting held 6-11 June 1989. Hawaiian Regent Hotel, Honolulu, Hawaii, USA (http://www.uhms.org)
URI: http://archive.rubicon-foundation.org/6698
Date: 1989

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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