DS DS/EN ISO 2897-1
DS DSEN SO 2897-1 1999-AUG-16 Plastcs - mpact-resstant polystyrene PS- mouldng and extruson materals - Part 1 Desgnaton system and bass for specfcatons
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This part of ISO 2897 establishes a system of designation for impact-resistant polystyrene (PS-I) thermoplastic materials, which may be used as the basis for specifications.