Registration number (WIID)Project No.TitleStatus
4376ISO 389:1975/Add 1:1983 Atcelts
4377ISO 389:1975/Add 2:1986 Atcelts
4378ISO 389-2:1994Acoustics — Reference zero for the calibration of audiometric equipment — Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphonesAtcelts
4476ISO 454:1975Acoustics — Relation between sound pressure levels of narrow bands of noise in a diffuse field and in a frontally-incident free field for equal loudnessAtcelts
4546ISO 495:1966Withdrawal of ISO/R 495-1966Atcelts
4564ISO/R 507:1970Withdrawal of ISO/R 507-1970Atcelts
4603ISO 532:1975Acoustics — Method for calculating loudness levelAtcelts
4938ISO/R 717:1968Withdrawal of ISO/R 717-1968Atcelts
6298ISO 1683:1983Acoustics — Preferred reference quantities for acoustic levelsAtcelts
6391ISO/R 1761:1970Withdrawal of ISO/R 1761-1970Atcelts
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