# ISO 4650:2012 — Withdrawn and superseded ISO standards For ISO 4650:2012, item title is Rubber — Identification — Infrared spectrometric methods; status code is 9599; successor is ISO 4650:2026; withdrawn / published date is 2012-12-06, recorded from its source on 2026-08-05. - **Identifier:** ISO 4650:2012 _(verified: appears in the quote below)_ - **Item title:** Rubber — Identification — Infrared spectrometric methods _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4650:2026 - **Withdrawn / published date:** 2012-12-06 _(verified: appears in the quote below)_ ## What the source says > 53026,IS,,ISO 4650:2012,Rubber — Identification — Infrared spectrometric methods,Caoutchouc — Identification — Méthodes spectrométriques dans l'infrarouge,2012-12-06,3,['83.060'],ISO/TC 45/SC 2,9599,[36905],[88777],"['en','fr']",88,"

ISO 4650:2012 specifies two methods for the identification of rubbers, including thermoplastic elastomers, either in the raw state or in the form of vulcanized or unvulcanized mixes. The first method is based on infrared spectrometric examination using the transmission technique. The second method makes use of analysis by reflectance.

A comparison of the spectra resulting from reflectance (attenuated total reflectance, ATR) and transmission (film) is giv ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).