GB/T 21272-2007

Vapour vacuum pumps - Measurement of performance characteristics Measurement of back-streaming rate of pump fluid and the heating time

NORMA vydaná dňa 20.12.2007

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The information about the standard:

Designation standards: GB/T 21272-2007
Publication date standards: 20.12.2007
Country: Chinese technical standard
Kategória: Technické normy GB