Chamber Tests with Human Subjects 12. Suit and Man "Breaks" with CC-2 Impregnated Clothing
Abstract
This report describes the results of two types of tests with H vapor on solvent, solvent + ZnO, and aqueous CC-2 impregnated clothing. The first type, called "suit-break" tests, consisting of repeated exposures of the same suit, showed that the total protective capacity of suits impregnated by the three systems is largely a function of the initial active chlorine content. An average loss of 0.009 - 0.010 mg. CL+/cm^2 occurred for each standard exposure and wear period, i.e., CT-1200 (60 Min.); 90 degrees F, 65 percent R.H., followed by 4 hrs. wear. The final active chlorine content of the solvent type suits was 0.07 - 0.14 mg/cm^2. This confirmed the desirability of a higher reimpregnation level for the aqueous type suits. The second type, called "man-break" tests, was carried out by successive daily exposures of the same subject in a given suit at CT 1200 (60 min.) at 90 degrees F, 66 percent R.H. In these tests the solvent and solvent +ZnO types gave greater protection than the aqueous type, the number of exposures tolerated being 7.3, 6.7, and 4.1 respectively for concurrent 1 layer tests. For the aqueous impregnanted suits, the number of exposures tolerated was 3.8, 4.3, and 6.6 for 1, 1-1/2 and 1-3/4 layers respectively. However 19 of 55 men in the one layer tests eventually suffered ulcerated or crusted lesions of the genitalia, whereas, of 81 men in the 1-1/2 layer tests, no men had genital burns of this severity. The value of protective shorts is evident from these results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 31, 1945
- Accession Number
- AD1192495
Entities
People
- H. W. Carhart
- J. H. Heinen
- W. H. Taylor
Organizations
- United States Naval Research Laboratory