DS DS/EN ISO 7783-1
DS DSEN SO 7783-1 1999-NOV-10 Pants and varnshes - Determnaton of water-vapour transmsson rate - Part 1 Dsh method for free flms Replaced by DS DSEN SO 7783
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This part of the standard specifies a method for the determination of the water-vapour transmission rate of an unsupported film of paint, varnish or related product. The test method is applicable to the transmission of water vapour in either direction through a paint film.