UNE 74155:1993

ACOUSTICS. REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE. (ISO 8798:1987).

NORMA vydaná dňa 19.5.1993

Španielsky -
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The information about the standard:

Designation standards: UNE 74155:1993
Note: NEPLATNÁ
Publication date standards: 19.5.1993
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE