Bulgarian Institute for Standardization
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БДС 4309:1974

Jan 1, 1974

General information

60.60     Jan 1, 1974

BDS

ТК-79

Pure national standard

13.260     13.340.01  

Bulgarian  

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PREVIOUSLY

Replaces
БДС 4309:1960

NOW

PUBLISHED
БДС 4309:1974
60.60 Standard published
Jan 1, 1974