# ISO 6235:1995 — Withdrawn and superseded ISO standards For ISO 6235:1995, item title is Rubber, raw — Determination of block polystyrene content — Ozonolysis method; status code is 9599; successor is ISO 6235:2016; withdrawn / published date is 1995-04-06, recorded from its source on 2026-08-05. - **Identifier:** ISO 6235:1995 _(verified: appears in the quote below)_ - **Item title:** Rubber, raw — Determination of block polystyrene content — Ozonolysis method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6235:2016 - **Withdrawn / published date:** 1995-04-06 _(verified: appears in the quote below)_ ## What the source says > 24252,IS,,ISO 6235:1995,"Rubber, raw — Determination of block polystyrene content — Ozonolysis method",Caoutchouc brut — Dosage du polystyrène séquencé — Méthode de l'ozonolyse,1995-04-06,2,['83.040.10'],ISO/TC 45/SC 3,9599,[12510],[70305],"['en','fr']",3,"
Cancels and replaces the first edition (1982). Specifies a method for the determination of the long polystyrene block content of raw uncompounded styrene-butadiene rubber (SBR) and raw uncompounded blends of block SBR. Not applicable to blends of block SBR with EPDM, IIR, CSM and other halogenated rubbers. The method is suitable for rubbers having block polystyrene contents in the range from 5 % (m/m) to 100 % (m/m).
" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).