ISO 22762-1:2024

International
Standard
ISO 22762-1
Fourth edition
Elastomeric seismic-protection
2024-09
isolators —
Part 1:
Test methods
Appareils d'appuis structuraux en élastomère pour protection
sismique —
Partie 1: Méthodes d'essai
Reference number
© ISO 2024
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Published in Switzerland
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Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Symbols and cross-section of elastomeric isolator . 4
4.1 Symbols .4
4.2 Cross-section of elastomeric isolator .7
5 Rubber material tests . 9
5.1 Test items .9
5.2 Test conditions and test pieces .9
5.3 Tensile properties .9
5.4 Ageing test .10
5.4.1 Ageing properties of inner rubber .10
5.4.2 Ageing properties of cover rubber .10
5.5 Hardness .10
5.6 Adhesion .10
5.7 Compression set .10
5.8 Dynamic shear properties .10
5.8.1 General .10
5.8.2 Test equipment .11
5.8.3 Test pieces .11
5.8.4 Test conditions . 12
5.8.5 Test results . 12
5.9 Breaking properties . 13
5.10 Brittleness point . 13
5.11 Ozone resistance . 13
5.12 Low-temperature crystallization . 13
6 Elastomeric isolator tests . 14
6.1 General .14
6.2 Compression and shear stiffness tests .14
6.2.1 Compression properties .14
6.2.2 Compressive-shear test .21
6.3 Various dependence tests .27
6.3.1 Strain dependence of shear properties .27
6.3.2 Compressive force dependence of shear properties . 28
6.3.3 Frequency dependence of shear properties . 30
6.3.4 Repeated deformation dependence of shear properties .32
6.3.5 Temperature dependence of shear properties. 34
6.3.6 Dependence of compression properties on shear strain . 36
6.3.7 Dependence of compressive stiffness on compressive stress range .37
6.4 Ultimate shear properties . 39
6.4.1 Principle . 39
6.4.2 Test machine . 39
6.4.3 Test piece . 39
6.4.4 Test conditions . 39
6.4.5 Procedure . 39
6.4.6 Expression of results . 40
6.4.7 Test report .41
6.5 Tensile testing .41
6.5.1 Principle .41
6.5.2 Test machine .41
6.5.3 Test piece .42

iii
6.5.4 Test conditions .42
6.5.5 Procedure .42
6.5.6 Expression of results .42
6.5.7 Test report .43
6.6 Durability testing . 44
6.6.1 Degradation test . 44
6.6.2 Creep test .45
6.6.3 Fatigue test . 49
6.7 Reaction force due to low-rate deformation .51
6.7.1 Principle .51
6.7.2 Test machine .52
6.7.3 Test piece .52
6.7.4 Test conditions .52
6.7.5 Procedure .52
6.7.6 Expression of result . 53
6.7.7 Test report .
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