# ISO 4405:1991 — Withdrawn and superseded ISO standards For ISO 4405:1991, item title is Hydraulic fluid power — Fluid contamination — Determination of particulate contamination by the gravimetric method; status code is 9599; successor is ISO 4405:2022 | ISO/CD 4405 | ISO/PWI 4405; withdrawn / published date is 1991-05-09, recorded from its source on 2026-08-05. - **Identifier:** ISO 4405:1991 _(verified: appears in the quote below)_ - **Item title:** Hydraulic fluid power — Fluid contamination — Determination of particulate contamination by the gravimetric method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4405:2022 | ISO/CD 4405 | ISO/PWI 4405 - **Withdrawn / published date:** 1991-05-09 _(verified: appears in the quote below)_ ## What the source says > 10310,IS,,ISO 4405:1991,Hydraulic fluid power — Fluid contamination — Determination of particulate contamination by the gravimetric method,Transmissions hydrauliques — Pollution des fluides — Détermination de la pollution particulaire par la méthode gravimétrique,1991-05-09,1,['23.100.60'],ISO/TC 131/SC 6,9599,,"[79715,35029,50157]","['en','fr']",4, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).