NA 044

DIN Standards Committee Refrigeration Technology

DIN EN 1148 ???din.label.webdb.content.articleState.CURRENT??? ???din.label.webdb.content.norm.quote.title???

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EN 247 1997-02 Heat exchangers - Terminology ???din.label.webdb.content.norm.more??? 
EN 305 1997-01 Heat exchangers - Definitions of performance of heat exchangers and the general test procedure for establishing performance of all heat exchangers ???din.label.webdb.content.norm.more???