GB/T 39910-2021.Specification for classification of standard literature.范围GB/T 39910规定了标准文献分类的依据、分类的步骤和分类的规则。GB/T 39910适用于标...
GB/T 39484-2020.Fibre-reinforced plastic composites-Determination of the mode II fracture resistance for unidirectionally reinforced materials using the calibrated end-loaded split(...
GB/T 39327-2020.Rubber and plastics hoses for marine-engine wet-exhaust systems-Specification.1范围GB/T 39327规定了三个型别、二种类别软管的要求。这些软管预定...
GB/T 39372-2020.Leather-Physical and mechanical tests-Determination of percentage extension.1范围GB/T 39372规定了皮革伸长率的试验方法。GB/T 39372适用于各种类型的...
GB/T 39369-2020.Leather-Physical and mechanical tests-Determination of water vapour permeability.1范围GB/T 39369规定了皮革透水汽性的测定方法.GB/T 39369适用于各种类...
GB/T 39368-2020.Leather-Physical and mechanical tests-Determination of flex resistance : Vamp flex method.1范围GB/T 39368规定了干态或湿态皮革.皮革涂层的耐折牢度的...
GB/T 39507-2020.Leather-Physical and mechanical tests-Determination of abrasion resistance : Martindale ball plate method.1范围GB/T 39507规定了马丁代尔球盘法测定皮革耐...
GB/T 39375-2020.Leather-Physical and mechanical tests-Determination of dimensional change.1范围GB/T 39375规定了皮革尺寸变化的测定方法。GB/T 39375适用于各种类型...
GB/T 19017-2020.Quality management-Guidelines for configuration management.1范围GB/T 19017给出了在组织内进行技术状态管理的指南。GB/T 19017适用于支持产品和...
GB/T 39023-2020.Writing and marking instruments-Specification for caps to reduce the risk of asphyxiation.1范围GB/T 39023规定了书写和记号工具降低窒息风险的笔套要...
