ISO/R 226:1961

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

95.99 Withdrawal of Standard May 1, 1987

General information

Current stage: 95.99 Effective date: May 1, 1987

Originator: ISO

Owner: ISO/TC 43

Type: None of the other values

ICS: 13.140

Life cycle

NOW

WITHDRAWN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

REVISED BY

WITHDRAWN
ISO 226:1987

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