Sealand Technology, Inc.

Frederic J Morris

Edward F McKiernan

Hose samples are tested to determine their permeability to noxious odors when used to conduct sewage. A hose sample is preferably pre-treated with methyl alcohol for several days to accelerate the rate of failure. Then the open ends of the hose sample tubular body are sealed and the tubular body is covered with a flexible generally (although not necessarily completely) sulfur-containing gas-impervious material (such as nylon film) to define a gas volume between the exterior surface of the hose and the film. Carbon disulfide, dimethyl sulfide, and/or dimethyl disulfide are introduced into the interior of the hose and allowed to stand for at least a day, and then the content of any gas in the gas volume between the exterior surface and the hose is evaluated to see if it is gas from carbon disulfide or like fluids introduced into the hose. Typically evaluation is done by making a slit in the gas impervious material just large enough for an end of a detector tube, hooking the detector tube to an evacuating pump, operating the evacuating pump to draw gas from the gas volume into the detector tube, and analyzing the withdrawn gas for carbon disulfide, etc. The slit may be resealed with the self-adhesive tape.

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Wooster, OH, United States of America

Frederic J Morris