ISO 9920:2007 specifies methods for estimating the thermal characteristics (resistance to dry heat loss and evaporative heat loss) in steady-state conditions for a clothing ensemble based on values for known garments, ensembles and textiles. It examines the influence of body movement and air penetration on the thermal insulation and water vapour resistance. It does not deal with other effects of clothing, such as adsorption of water, buffering or tactile comfort, take into account the influence of rain and snow on the thermal characteristics, consider special protective clothing (water-cooled suits, ventilated suits, heated clothing), or deal with the separate insulation on different parts of the body and discomfort due to the asymmetry of a clothing ensemble.
Document identifier
ISO 9920:2007
Title
Ergonomics of the thermal environment - Estimation of thermal insulation and water vapour resistance of a clothing ensemble
ISO Category
TC 159/SC 5: Ergonomics of the physical environment
Publication date
2007-06-01
International Relationship
BS EN ISO 9920:2009 * DIN EN ISO 9920
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