scope:

This international standard provides the general principles of a test method for evaluating the physiological impact of complete garments or protective clothing ensembles in a series of simulated activities (phases) under defined ambient conditions. This test method characterizes the essential garment properties for thermophysiological assessment: - Dry thermal insulation - Measures for cooling properties during average metabolic activity and moisture management - Drying behaviour This International Standard is intended to be used to measure and describe the behaviour of complete garments or protective clothing ensembles in response to a simulated series of activities under controlled laboratory conditions, with the results used to optimize garment combinations and designs. Furthermore, this International Standard is intended to be used to describe the thermo-physiological impact of protective clothing but not the risk for heat stress under actual fire conditions. The results of this test can be used as elements of a risk assessment with respect to heat stress or cardiovascular load.