GB/T 38540-2020.Information security technology-Technical specification secure electronic seal signature cryptography.1范围GB/T 38540规定了采用密码技术实现电子印章和...
GB/T 38518-2020.Measurement of coating thickness on flexible film substrate.1范围GB/T 38518规定了柔性薄膜基体上涂层(包含有机、无机与金属涂层)厚度扫描电子...
GB/T 38510-2020.Evaluation of self-sealing performance for tyres coated with self-sealing material.1范围GB/T 38510规定了涂覆式刺扎自密封轮胎自密封性能的评价要求...
GB/T 38529-2020.Requirements of concentration limits for restricted substances in tyres.1范围GB/T 38529规定了橡胶轮胎(含内胎、垫带)中不应使用的原料、限用物质...
GB/T 38515-2020.The method for high temperature mechanical properties of quartz fabric-reinforced resin matrix composite materials.1范围GB/T 38515规定了石英纤维织物增强树...
GB/T 38539-2020.Technical requirements for application of LED sports lighting.1范围GB/T 38539规定了体育场馆照明用LED的术语和定义、一般要求、规格分类要求及...
GB/T 20693-2020.Emamectin benzoate technical material.1范围GB/T 20693规定了甲氨基阿维菌素苯甲酸盐原药的要求、试验方法、验收、质量保证期以及标志、...
GB/T 70.6-2020.Hexagon socket head cap screws-Fine pitch thread.1范围GB/T 70的本部分规定了内六角圆柱头细牙螺钉的型式尺寸.技术条件和标记。GB/T 70.6适用...
GB/T 23761-2020.Test method for air-purification performances of photocatalytic materials-Degradation of acetaldehyde ( or formaldehyde).1范围GB/T 23761规定了光催化材料及制...
GB/T 23762-2020.Test method for water purification performance of photocatalytic materials.1范围GB/T 23762规定了光催化材料水溶液净化性能测试方法的原理、试验...
