Document Type

Thesis

Degree

Master of Science (MS)

Major/Program

Environmental Studies

First Advisor's Name

Gabriel Aurioles

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Neil Hout-Cooper, Jr.

Third Advisor's Name

Ramon P. Cesta

Keywords

Trichloroethane, Physiological effect, Vapor degreasing, Physiological effect

Date of Defense

4-27-1981

Abstract

This study attempted to determine if an excessive amount of 1,1,1 - Trichloroethane was released into the air, the acute effects of exposure and the cause(s) of excessive use.

The types of degreasing equipments which were tested in this study are straight vapor and the vapor spray machines. The instruments utilized to obtain the data for this study are Gastech Haline Detector, Organic Vapor Monitor Badge and Personal Sampling Pump.

Readings were taken on three different tanks. The data accumulated by this study were obtained during actual cleaning operation. During testing, increased exposure was detected due to exceeding the rate of removal, downward drafts were blowing right over the top of a degreaser and, in some cases, poor general ventilation caused solvent vapor to be blown out of the tank and into the workers' breathing zone, affecting excessive vapor drag out and solvent loss.

The results show that, since the characteristics of solvent 1,1,1 - Trichloroethane are well suited to vapor degreasing requirements, by using proper procedures and maintenance, 1,1,1 - Trichloroethane emission during vapor degreasing can be controlled at levels well below the industrial hygiene standard established by OSHA for safe and healthful conditions.

Identifier

FI14030207

Comments

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