# ISO 3999:1977 — Withdrawn and superseded ISO standards

For ISO 3999:1977, item title is Apparatus for gamma radiography — Specification; status code is 9599; successor is ISO/CD 3999-3 | ISO/DIS 3999-1.2 | ISO 3999-1:2000 | ISO/CD 3999-2; withdrawn / published date is 1977-09-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 3999:1977 _(verified: appears in the quote below)_
- **Item title:** Apparatus for gamma radiography — Specification _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/CD 3999-3 | ISO/DIS 3999-1.2 | ISO 3999-1:2000 | ISO/CD 3999-2
- **Withdrawn / published date:** 1977-09-01 _(verified: appears in the quote below)_

## What the source says

> 9666,IS,,ISO 3999:1977,Apparatus for gamma radiography — Specification,Appareils de radiographie gamma — Spécifications,1977-09-01,1,['19.100'],ISO/TC 85,9599,,"[30217,9667,32922,30216]","['en','fr']",10,"<p>Specifies the constructional requirements of portable, mobile and fixed apparatus for industrial radiography of category I (sealed source not removed for exposure) and II (sealed source projected out of the container by an operator at a distance). Operational usage of exposure containers is not covered. As the transport of apparatus is concerned, the requirements of the relevant transport regulations have also to be satisfied.</p>"

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).