ISO 4666-3:2022 PDF

Scope: This document specifies the flexometer test with constant-strain amplitude for the determination of the temperature rise and resistance to fatigue of vulcanized rubber. The flexometer specified is known as the Goodrich flexometer, but any other apparatus giving equivalent performance can be used. This document gives directions for carrying out measurements which make possible predictions regarding the durability of rubbers in finished articles subject to dynamic flexing in service, such as tyres, bearings, supports, V-belts, and cable-pulley insert rings. However, owing to the wide variations in service conditions, no simple correlation between the accelerated tests described in the various parts of this document and service performance can be assumed. The method is not intended for rubber having a hardness greater than 85 IRHD.

ISO 4666-3:2022 Referenced Document

ISO 18899:2013 Rubber - Guide to the calibration of test equipment
ISO 23529 Rubber - General procedures for preparing and conditioning test pieces for physical test methods
ISO 4666-1 Rubber, vulcanized - Determination of temperature rise and resistance to fatigue in flexometer testing - Part 1: Basic principles
ISO 48-2 Rubber, vulcanized or thermoplastic - Determination of hardness - Part 2: Hardness between 10 IRHD and 100 IRHD

2022 ISO 4666-3:2022 Rubber, vulcanized — Determination of temperature rise and resistance to fatigue in flexometer testing — Part 3: Compression flexometer (constant-strain type)
2016 ISO 4666-3:2016 Rubber, vulcanized - Determination of temperature rise and resistance to fatigue in flexometer testing - Part 3: Compression flexometer (constant-strain type)
2010 ISO 4666-3:2010 Rubber, vulcanized - Determination of temperature rise and resistance to fatigue in flexometer testing - Part 3: Compression flexometer (constant-strain type)
1982 ISO 4666-3:1982 Rubber, vulcanized; Determination of temperature rise and resistance to fatigue in flexometer testing; Part 3 : Compression flexometer