GB/T 39434-2020.Technical requirement for ozone treatment recirculating cooling water for central air conditioning.1范围GB/T 39434规定了臭氧处理中央空调循环冷却水系...
GB/T 25217.14-2020.Methods for test, monitoring and prevention of rock burst-Part 14: Prevention method of roof hydraulic fracturing.1范围GB/T 25217的本部分规定了冲击地压...
GB/T 39287-2020.Closed expansion vessels.1范围GB/T 39287规定了闭式膨胀罐的分类与标记,一般要求,要求,试验方法,检验规则.标志、安装和使用维修说明...
GB/T 39237-2020.Technical requirements for application of LED nightscape lighting.1范围GB/T 39237规定了夜景照明用LED灯具的一般要求、规格分类、灯具性能、驱...
GB/T 39232-2020.Zirconia ceramics knife.1范围GB/T 39232规定了氧化锆日用陶瓷刀的要求、试验方法、检验规则以及标志、包装、运输、贮存。GB/T 39232适...
GB/T 39246-2020.Prefabricated directly buried insulating fittings with seamless high density polyethylene casing pipe.1范围GB/T 39246规定了高密度聚乙烯无缝外护管预制...
GB/T 39295-2020.Determination of the tack for water based adhesive.1范围GB/T 39295规定了水性胶粘剂触粘性的测定方法。GB/T 39295适用于水性胶粘剂触粘性的测...
GB/T 15331-2020.Test method for water vapor transmission rate of pressure-sensitive tapes.1范围GB/T 15331规定了压敏胶粘带水蒸气透过率的试验原理、仪器和设备、...
GB/T 15330-2020.Test method for water penetration rate of pressure-sensitive tapes.1范围GB/T 15330规定了压敏胶粘带水渗透率的试验原理、仪器和设备、试件制备...
GB/T 39294-2020.Determination of the discoloration performence for adhesive.1范围GB/T 39294规定了胶粘剂变色(黄变)性能的测定方法。GB/T 39294适用于胶粘剂变色...
