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ISO/R 226:1961

Normal equal-loudness contours for pure tones and normal threshold of hearing under free field listening conditions

Dec 1, 1961
95.99 Withdrawal of Standard   May 1, 1987

General information

95.99     May 1, 1987

ISO

ISO/TC 43

None of the other values

13.140  

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Life cycle

NOW

WITHDRAWN
ISO/R 226:1961
95.99 Withdrawal of Standard
May 1, 1987

REVISED BY

WITHDRAWN
ISO 226:1987