# ISO 835-4:1981 — Withdrawn and superseded ISO standards For ISO 835-4:1981, item title is Laboratory glassware — Graduated pipettes — Part 4: Blow-out pipettes; status code is 9599; successor is ISO 835:2007; withdrawn / published date is 1981-08-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 835-4:1981 _(verified: appears in the quote below)_ - **Item title:** Laboratory glassware — Graduated pipettes — Part 4: Blow-out pipettes _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 835:2007 - **Withdrawn / published date:** 1981-08-01 _(verified: appears in the quote below)_ ## What the source says > 5204,IS,,ISO 835-4:1981,Laboratory glassware — Graduated pipettes — Part 4: Blow-out pipettes,Verrerie de laboratoire — Pipettes graduées — Partie 4: Pipettes à souffler,1981-08-01,1,['17.060'],ISO/TC 48,9599,[5200],[41794],"['en','fr']",2,"

The special requirements concern the capacity, graduation, figuring, delivery and identification. The lower end of the scale and the delivery time are tabled for the nominal capacity. The handling of the pipettes at the measurement is specified.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).