# ISO 6948:1981 — Withdrawn and superseded ISO standards For ISO 6948:1981, item title is Automatic steam traps — Production and performance characteristic tests; status code is 9599; successor is ISO 5117:2023; withdrawn / published date is 1981-11-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 6948:1981 _(verified: appears in the quote below)_ - **Item title:** Automatic steam traps — Production and performance characteristic tests _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 5117:2023 - **Withdrawn / published date:** 1981-11-01 _(verified: appears in the quote below)_ ## What the source says > 13495,IS,,ISO 6948:1981,Automatic steam traps — Production and performance characteristic tests,Purgeurs automatiques de vapeur d'eau — Essais de production et essais des caractéristiques de fonctionnement,1981-11-01,1,['23.060.01'],ISO/TC 153,9599,,[81365],"['en','fr']",3,"
Specifies tests applicable to steam traps, these tests may be conducted to ensure the correct functioning of a trap or to evalute the performance of a particular design. Lays down the tests to be performed relative to each one of these two categories and describes briefly the corresponding test methods.
" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).