# ISO 12238:2001 — Withdrawn and superseded ISO standards For ISO 12238:2001, item title is Pneumatic fluid power — Directional control valves — Measurement of shifting time; status code is 9599; successor is ISO 12238:2023 | ISO/NP 12238; withdrawn / published date is 2001-07-26, recorded from its source on 2026-08-05. - **Identifier:** ISO 12238:2001 _(verified: appears in the quote below)_ - **Item title:** Pneumatic fluid power — Directional control valves — Measurement of shifting time _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 12238:2023 | ISO/NP 12238 - **Withdrawn / published date:** 2001-07-26 _(verified: appears in the quote below)_ ## What the source says > 20887,IS,,ISO 12238:2001,Pneumatic fluid power — Directional control valves — Measurement of shifting time,Transmissions pneumatiques — Distributeurs de commande directionnels — Mesure du temps de commutation,2001-07-26,1,['23.100.50'],ISO/TC 131/SC 5,9599,,"[77084,69097]","['en','fr']",12,"

This International Standard

— specifies test procedures for measuring the shifting times of electrically- or pneumatically-operated directional

control valves and moving-part logic elements,

— establishes a definition for shifting time, and

— is intended to improve the application of pneumatic fluid power by providing users and manufacturers of

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).