NEN ISO 226 : 2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ACOUSTICS - NORMAL EQUAL-LOUDNESS LEVEL CONTOURS
28-04-2023
12-01-2013
Defines combinations of sound pressure levels and frequencies of pure continuous tones, which are perceived as equally loud by human listeners.
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