ISO 34-2:2015
Rubber, vulcanized or thermoplastic — Determination of tear strength — Part 2: Small (Delft) test pieces
ISO 34-2:2015 specifies a method for the determination of the tear strength of small test pieces (Delft test pieces) of vulcanized or thermoplastic rubber.
NOTE The method does not necessarily give results agreeing with those given by the method described in ISO 34‑1, which uses trouser, angle and crescent test pieces. It is used in preference to ISO 34‑1 when the amount of material available is limited, and might be particularly suitable for testing small finished products.
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Foreword
1 Scope
2 Normative references
3 Principle
4 Apparatus
5 Calibration
6 Test pieces
6.1 Shape and dimensions
6.2 Measurement of dimensions
6.2.1 Measurement of thickness
6.2.2 Measurement of the total width outside the slit
6.3 Time interval between vulcanization and testing
6.4 Number
7 Temperature of test
8 Procedure
9 Expression of results
10 Precision
11 Test report
Annex A (informative) Precision results from an interlaboratory test programme
Annex B (normative) Calibration schedule
Bibliography
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Foreword
1 Scope
2 Normative references
3 Principle
4 Apparatus
5 Calibration
6 Test pieces
6.1 Shape and dimensions
6.2 Measurement of dimensions
6.2.1 Measurement of thickness
6.2.2 Measurement of the total width outside the slit
6.3 Time interval between vulcanization and testing
6.4 Number
7 Temperature of test
8 Procedure
9 Expression of results
10 Precision
11 Test report
Annex A (informative) Precision results from an interlaboratory test programme
Annex B (normative) Calibration schedule
Bibliography