# ISO 4778:1981 — Withdrawn and superseded ISO standards For ISO 4778:1981, item title is Chain slings of welded construction — Grades M (4), S (6) and T (8); status code is 9599; successor is ISO/DIS 4778 | ISO 4778:2019; withdrawn / published date is 1981-06-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4778:1981 _(verified: appears in the quote below)_ - **Item title:** Chain slings of welded construction — Grades M (4), S (6) and T (8) _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/DIS 4778 | ISO 4778:2019 - **Withdrawn / published date:** 1981-06-01 _(verified: appears in the quote below)_ ## What the source says > 10755,IS,,ISO 4778:1981,"Chain slings of welded construction — Grades M (4), S (6) and T (8)","Élingues à chaînes assemblées par soudure — Classes M (4), S (6) et T (8)",1981-06-01,1,['53.020.30'],ISO/TC 111/SC 1,9599,,"[10756,75789]","['en','fr']",15,"
Specifies the requirements, methods of rating and testing of single, two, three and four branch (or leg) welded chain slings. Does not apply to mechanically joined slings or welded slings having branches of unequal nominal reach.
" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).