# ISO 16946:2017 — Withdrawn and superseded ISO standards For ISO 16946:2017, item title is Non-destructive testing — Ultrasonic testing — Specification for step wedge calibration block; status code is 9599; successor is ISO 16946:2024; withdrawn / published date is 2017-03-02, recorded from its source on 2026-08-05. - **Identifier:** ISO 16946:2017 _(verified: appears in the quote below)_ - **Item title:** Non-destructive testing — Ultrasonic testing — Specification for step wedge calibration block _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 16946:2024 - **Withdrawn / published date:** 2017-03-02 _(verified: appears in the quote below)_ ## What the source says > 71694,IS,,ISO 16946:2017,Non-destructive testing — Ultrasonic testing — Specification for step wedge calibration block,Essais non destructifs — Essais par ultrasons — Spécifications relatives aux blocs d'étalonnage à gradins,2017-03-02,2,['19.100'],ISO/TC 135/SC 3,9599,[57998],[85805],"['en','fr']",4,"

ISO 16946:2017 specifies the dimensions, material, and manufacture of a step wedge steel block for the calibration of ultrasonic instruments.

" ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).