GB/T 39716-2020.Test method for air-purification performance of photocatalytic materials and product...

GB/T 24722-2020.Glass beads for road markings. 1范围 GB/T 24722规定了路面标线用玻璃珠的产品分类与用途、技术要求、试验方法.检验规则,以及标志...

GB/T 39675-2020.Technical requirement for information exchange of power grid meteorology. 1范围 GB/T 3...

GB/T 39604-2020.Social responsibility management systems-Requirements with guidance for use. 1范围 GB/...

GB/T 39634-2020.Management specification for water-saving of hotels. 1范围 GB/T 39634规定了宾馆节水管理的基本要求、设备...

GB/T 39720-2020.Information security technology-Security technical requirements and test evaluation ...

GB/T 39632-2020.Terminology of marine disaster prevention and mitigation. 1范围 GB/T 39632界定了海洋防灾减灾工作的...

GB/T 39646-2020.Laboratory animal-General guidelines for health monitoring. 1范围 GB/T 39646规定了实验动物健康监...

GB/T 39157-2020.Classification and definition of the technology readiness levels for targets. 1范围 GB...

GB/T 39158-2020.High purity copper rotatable tube target for flat panel display. 1范围 GB/T 39158规定了平面...