# ISO 4797:1981 — Withdrawn and superseded ISO standards For ISO 4797:1981, item title is Laboratory glassware — Flasks with conical ground joints; status code is 9599; successor is ISO 4797:2004; withdrawn / published date is 1981-05-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4797:1981 _(verified: appears in the quote below)_ - **Item title:** Laboratory glassware — Flasks with conical ground joints _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4797:2004 - **Withdrawn / published date:** 1981-05-01 _(verified: appears in the quote below)_ ## What the source says > 10776,IS,,ISO 4797:1981,Laboratory glassware — Flasks with conical ground joints,Verrerie de laboratoire — Fioles coniques et ballons à col muni d'un assemblage conique rodé,1981-05-01,1,['71.040.20'],ISO/TC 48,9599,,[32196],"['en','fr']",2,"

An international acceptable series of flasks is specified concluding: round-bottom, flat-bottom and conical flasks. Two series are specified for each type of round-bottom and flat-bottom flasks. The series differ in heigt and in selection of joint sizes. For conical flasks one series of heights is specified each having different joint sizes. The material must be borosilicate glass 3.3. For the three types of flasks the capacities and the series with o ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).