DIN EN 21683 (1994-09)被替代
Preferred reference quantities for acoustic levels (ISO 1683:1983)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
Specifies reference quantities and gives definitions of some levels for acoustics. Also gives detailed definitions.
Partially supersedes DIN 45630-1. (12/2001)
SS EN 21683 Ed. 1 (1994) - Identical
UNE EN 21683:1995 - Identical
ISO 1683:1983 - Identical
UNI EN 21683:1995 - Identical
NF EN 21683:1994 - Identical
I.S. EN 21683:1994 - Identical
NBN EN 21683:1995 - Identical
BS EN 21683:1994 - Identical
ONORM EN 21683:1994 - Identical
SN EN 21683:1994 - Identical
