1 Scope
This document specifies three test methods for the determination of the tear strength
of vulcanized or thermoplastic rubber, namely the following:
— method A, using a trouser test piece;
— method B, using an angle test piece, with or without a nick of specified depth;
— method C, using a crescent test piece with a nick.
The value of tear strength obtained depends on the shape of the test piece, speed
of stretching, and temperature of test. It can also be susceptible to grain effects
in rubber.
NOTE A separate method for the determination of the tear strength of small test pieces
of rubber (Delft test pieces) is specified in ISO 34‑2.
BS ISO 34-1:2022 history
2022BS ISO 34-1:2022 Rubber, vulcanized or thermoplastic. Determination of tear strength. Trouser, angle and crescent test pieces
2015BS ISO 34-1:2015 Rubber, vulcanized or thermoplastic. Determination of tear strength. Trouser, angle and crescent test pieces
2010BS ISO 34-1:2010 Rubber, vulcanized or thermoplastic. Determination of tear strength. Trouser, angle and crescent test pieces