# ISO 6544:1981 — Withdrawn and superseded ISO standards For ISO 6544:1981, item title is Hand-held pneumatic assembly tools for installing threaded fasteners — Reaction torque and torque impulse measurements; status code is 9599; successor is ISO/WD 6544; withdrawn / published date is 1981-11-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 6544:1981 _(verified: appears in the quote below)_ - **Item title:** Hand-held pneumatic assembly tools for installing threaded fasteners — Reaction torque and torque impulse measurements _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/WD 6544 - **Withdrawn / published date:** 1981-11-01 _(verified: appears in the quote below)_ ## What the source says > 12938,IS,,ISO 6544:1981,Hand-held pneumatic assembly tools for installing threaded fasteners — Reaction torque and torque impulse measurements,Outils pneumatiques à main pour l'assemblage d'éléments de fixation filetés — Mesurages du couple de réaction et de l'impulsion de couple,1981-11-01,1,['25.140.10'],ISO/TC 118/SC 3,9599,,[1719],"['en','fr']",7,"

Specifies a test method for tools and gives instructions on how measured data should be evaluated and presented. Is directly applicable to assembly torque control tools. In the case of stall type tools, only the reaction torque can be measured. Impacting, pulsing or ratcheting tools are not covered.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).