# ISO 1624:1978 — Withdrawn and superseded ISO standards For ISO 1624:1978, item title is Plastics — Vinyl chloride homopolymer and copolymer resins — Sieve analysis in water; status code is 9599; successor is ISO 1624:2001; withdrawn / published date is 1978-09-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 1624:1978 _(verified: appears in the quote below)_ - **Item title:** Plastics — Vinyl chloride homopolymer and copolymer resins — Sieve analysis in water _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 1624:2001 - **Withdrawn / published date:** 1978-09-01 _(verified: appears in the quote below)_ ## What the source says > 6223,IS,,ISO 1624:1978,Plastics — Vinyl chloride homopolymer and copolymer resins — Sieve analysis in water,Plastiques — Résines d'homopolymères et de copolymères de chlorure de vinyle — Analyse granulométrique par tamisage sous courant d'eau,1978-09-01,1,['83.080.20'],ISO/TC 61/SC 9,9599,,[31279],"['en','fr']",4,"

Specification of a method for the determination of the particle size of vinylchloride homopolymer and copolymer resins by sieving under a stream of water, using standard aperture sieves with mesh sizes 0,063 and 0,250 mm. The residues on the sieves are dried and weighed. The percentages of the sieve residues shall be calculated.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).