Evaluating reuse of chemical protective gloves based on breakthrough times.
Gao-P; El-Ayouby-N; Hall-R; Berardinelli-S
American Industrial Hygiene Conference and Exposition, June 1-6, 2002, San Diego, California. Fairfax, VA: American Industrial Hygiene Association, 2002 Jun; :33-34
Chemical protective clothing and gloves used for adequate protection are usually too expensive to be considered disposable. Decontamination is therefore essential before protective clothing is reused. The objective of (TWA) permissible exposure limit (PEL) for C1O2 of 0.1 ppm and a short term (15 minute) exposure limit (STEL) of 0.3 ppm. In order to ensure that bleach plant environments meet these standards, the industry employs both fixed and personal alarm-type monitors. Ten commercially available fixed monitors and two personal alarm-type monitors were evaluated in this study. The monitors were exposed to test gas atmospheres containing C1O2 at concentrations of 0.1, 0.2 and 9.0 ppm and their responses recorded. From these data, the precision, accuracy, response time, and recovery time were calculated. Since workplace environments have significant variability with regard to temperature, humidity and air flow rates, the effects of these factors on monitor performance were also investigated. The monitors were exposed to a high temperature (lOOF) and high humidity (>80%) environment. They were also tested at air flow rates of 50, 100 and 200 ft/min. A test to record and evaluate the zero drift and span drift of the monitors over a 7 day period was performed as well. An additional test was performed to measure the response of the monitors to C12. Generally, the performance of most of the monitors was as expected based on manufacturer's specifications. The accuracy of the monitors was dependent on calibration and the air flow rate of the test gas. The study did identify some important characteristics to consider when selecting a monitor for a particular application, such as response to Cl2 and the expected air flow rate.
Protective-equipment; Protective-measures; Protective-clothing; Decontamination; Synthetic-rubbers; Exposure-levels; Toluenes
American Industrial Hygiene Conference and Exposition, June 1-6, 2002, San Diego, California