Leather - Physical and mechanical tests - Determination of flex resistance by the vamp flex method (ISO 22288:2006)
皮革.物理和机械试验.用鞋面弯曲法测定抗弯曲性（ISO 22288-2006）
2009-03-25
UNE-EN ISO 5402-2003
Leather - Physical and mechanical tests - Determination of flex resistance by flexometer method. (ISO 5402:2002)
皮革.物理和机械试验.用挠曲计法测定抗挠曲性 （ISO 5402-2002）
2003-05-09
DIN EN ISO 5402
Leather - Physical and mechanical tests - Determination of flex resistance by flexometer method (ISO 5402:2002)
皮革.物理和机械试验.用挠曲计法测定抗挠曲性（ISO 5402-2002）；德文版EN ISO 5402:2002