# ISO 10770-1:1998 — Withdrawn and superseded ISO standards For ISO 10770-1:1998, item title is Hydraulic fluid power — Electrically modulated hydraulic control valves — Part 1: Test methods for four-way directional flow control valves; status code is 9599; successor is ISO 10770-1:2009; withdrawn / published date is 1998-05-14, recorded from its source on 2026-08-05. - **Identifier:** ISO 10770-1:1998 _(verified: appears in the quote below)_ - **Item title:** Hydraulic fluid power — Electrically modulated hydraulic control valves — Part 1: Test methods for four-way directional flow control valves _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 10770-1:2009 - **Withdrawn / published date:** 1998-05-14 _(verified: appears in the quote below)_ ## What the source says > 1757,IS,,ISO 10770-1:1998,Hydraulic fluid power — Electrically modulated hydraulic control valves — Part 1: Test methods for four-way directional flow control valves,Transmissions hydrauliques — Distributeurs hydrauliques à modulation électrique — Partie 1: Méthodes d'essai pour distributeurs à quatre voies,1998-05-14,1,['23.100.50'],ISO/TC 131/SC 8,9599,[12741],[50159],"['en','fr']",40, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).