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PROTECTION AFFORDED BY EXPERIMENTAL XXCC3-IMPREGNATED NAVY WORK/COMBAT CLOTHING WORN BY MEN EXPOSED TO MUSTARD VAPOR
CHEMICAL RESEARCH AND DEVELOPMENT LABS EDGEWOOD ARSENAL MD
The protective effectiveness of Navy protective clothing single- layer type impregnated with XXCC3 was tested by exposing 10 men wearing the outfit in an atmosphere of mustard vapor 20 mgcu m. Two men serving as controls wore the standard Army two-layer XXCC3-treated protective clothing and were exposed with the group. The men were exposed for 15 min on the first day, 30 min on the second day, after which the daily exposure time was 1 hr on the following 8 days. When mustard vapor penetrated the Navy clothing, erythema developed at the site of penetration within 24 hr after exposure. When this occurred, the affected subject was withdrawn from further exposure tests. Erythema was produced on nine of the ten men wearing Navy clothing exposed in the cumulative Ct range of 3,306 to 10,054 mg mincu m, with corresponding cumulative exposure times varying between 2.75 and 8.35 hr. Most of the erythema occurred in the abdominal area. The remaining one Navy suit and the two control Army suits did not break during the 10 exposures totaling cumulative Cts of 10, 500 mg mincu m and 8.75 hr. The Navy clothing outfil required considerable care in size selection and adjustment on the wearers to assure the absence of gaps in protection over the forearms and around the waist. It is concluded that the experimental XXCC3-impregnated Navy workcombat clothing can be worn by men in mustard vapor for a cumulative Ct of 7,000 mg mincu m total time 6 hr without incapacitating effects.
Technical rept. Jun-Aug 1964
Approved for public release; distribution is unlimited.