# ISO 4930:1978 — Withdrawn and superseded ISO standards

For ISO 4930:1978, item title is Road vehicles — Elastomeric seals for hydraulic disc brake cylinders using a non-petroleum base hydraulic brake fluid (Service temperature 150 degrees C max.); status code is 9599; successor is ISO 4930:2006 | ISO/WD 4930; withdrawn / published date is 1978-08-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4930:1978 _(verified: appears in the quote below)_
- **Item title:** Road vehicles — Elastomeric seals for hydraulic disc brake cylinders using a non-petroleum base hydraulic brake fluid (Service temperature 150 degrees C max.) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4930:2006 | ISO/WD 4930
- **Withdrawn / published date:** 1978-08-01 _(verified: appears in the quote below)_

## What the source says

> 10947,IS,,ISO 4930:1978,Road vehicles — Elastomeric seals for hydraulic disc brake cylinders using a non-petroleum base hydraulic brake fluid (Service temperature 150 degrees C max.),Véhicules routiers — Joints en caoutchouc pour cylindres de freins hydrauliques à disque utilisant un liquide de frein à base non pétrolière (Température maximale d'utilisation 150 degrés C),1978-08-01,1,"['83.140.50','43.040.40']",ISO/TC 22,9599,,"[41831,33207]","['en','fr']",6,"<p>Specifies the performance test methods and requirements for seals used in disc brake cylinders. Applies to solid section type seals (square, rectangular, 'O'-ring) mounted stationary in the cylinder bore or on the movable piston of d

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).