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NA 032

DIN Standards Committee Gas Technology

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Technical rule [CURRENT]

OIML R 137-1&2 ; OIML R 137-1:2012 ; OIML R 137-2:2012
Gas meters - Part 1: Metrological and technical requirements - Part 2: Metrological controls and performance tests OIML

Edition 2012
Original language English
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