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Specification for normal equal-loudness level contours for pure tones under free-field listening conditions.
STANDARD published on 29.2.1988
Designation standards: BS 3383:1988
Note: WITHDRAWN
Publication date standards: 29.2.1988
SKU: NS-64279
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: British technical standard
Category: Technical standards BS
Latest update: 2026-10-05 (Number of items: 2 304 304)
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