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Author
Dale, J. D. | Ackerman, M. | Crown, B. M. | Hess, D. | Tucker, R. | Bitner, E.
Title
Study of Geometry Effects on Testing Single Layer Fabrics for Thermal Protection.
Coporate
Alberta Univ., Canada Celanese Corporation, Charlotte, NC
Report
ASTM STP 1386,
Book or Conf
Performance of Protective Clothing: Issues and Priorities for the 21st Century. Proceedings. Seventh (7th) Volume. American Society for Testing and Materials (ASTM). ASTM STP 1386. June 28-30, 1999, ASTM, West Conshohocken, PA, Seattle, WA, Nelson, C. N.; Henry, N. W., Editors, 393-406 p., 2000
Keywords
protective clothing | protective equipment | thermal protection | fabrics | geometry | flammability | heat transfer | test methods | garments | ASTM D 4108-87 | human beings | temperature
Identifiers
Personal Protective Equipment (PPE); thermal protective performance; bench scale testers; planar and cylindrical geometry; thermal protective fabrics; single layer fabrics; cylindrical geometry tester; analysis of variance: TPP values for two test devices
Abstract
A study was undertaken to investigate the effect of changing the geometry of a bench scale tester from planar to cylindrical on the thermal protective properties of single-layer fabrics. The design of a cylindrical geometry tester is discussed in detail. Its size was selected so that it can be a direct replacement for presently used planar geometry units. Like planar geometry testers, the cylindrical unit can be operated with or without an air gap between the fabric and the sensor. Results are presented only for the case with a 6.35 mm (1/4 in.) air gap. They show that fabrics which shrink during the test can have reduced thermal protective qualities compared with the performance measured with a planar geometry tester.