ISO 21634:2022
Rubber flaps for tyres — Requirements and test methods

Standard No.

ISO 21634:2022

Release Date

2022

Published By

International Organization for Standardization (ISO)

Latest

ISO 21634:2022

Scope

This document specifies requirements and test methods for tube-type tyres in automotive vehicles that require rubber flaps, in order to ensure they are protected against damages to the inner tube caused by the rim or tyre. This document is applicable to tyres for road vehicles. It does not apply to 2/3 wheeler and non-road tyres. Requirements and test methods for rubber flaps for non-road tyres are provided in Annex E.

ISO 21634:2022 Referenced Document

• ISO 188 Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests*， 2023-03-09 Update
• ISO 37 Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties
• ISO 4209-2 Truck and bus tyres and rims (metric series) — Part 2: Rims
• ISO 48-2 Rubber, vulcanized or thermoplastic - Determination of hardness - Part 2: Hardness between 10 IRHD and 100 IRHD

ISO 21634:2022 history

• 2022 ISO 21634:2022 Rubber flaps for tyres — Requirements and test methods