Footwear. Resistance to crack initiation and growth. Belt flex method Ingestion-build-181247 vapor-protective ensembles for emergency response

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Footwear. Resistance to crack initiation and growth. Belt flex method Ingestion-build-181247 vapor-protective ensembles for emergency response1 Scope This International Standard specifies a test method for determining the resistance of a component or material to crack initiation and growth due to repeated flexing. The method is mainly applicable to outsoles of footwear but may also be used with certain other flexible components.