GB/T 12303-1990

Measurement of sound pressure level for sound signal appliances by seagoing vessel

NORMA vydána dne 6.4.1990

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The information about the standard:

Designation standards: GB/T 12303-1990
Note: NEPLATNÁ
Publication date standards: 6.4.1990
Country: Chinese technical standard
Kategorie: Technické normy GB