2019 year China issued GB standards list


	GB/T 37455-2019 Hydraulic ring-beam jacking system for offshore platform 海洋平台液压环梁升降装置
	GB/T 37547-2019 Classification and code of waste plastics 废塑料分类及代码
	GB/T 7991.7-2019 Test method of viterous and porcelain enamels—Part 7：Determination of coefficient of mean lincar thermal expansion 搪玻璃层试验方法第7部分：平均线热膨胀系数的测定
	GB/T 37891.5-2019 Cutter arbors with parallel key and tenon drive—Part 5:Dimensions and designation of tool holders with polygonal taper interface with flange contact surface 带平键和端键传动的铣刀杆第5部分：带法兰接触面的多棱锥柄刀杆的尺寸和标记
	GB/T 37558-2019 Preliminary heat treatment of heavy steel forgings 大型锻钢件的锻后热处理
	GB/T 20851.2-2019 Electronic toll collection—Dedicated short range communication—Part 2:Data link layer 电子收费专用短程通信第2部分:数据链路层
	GB/T 37811-2019 General matching specification for fully-mechanized top coal caving mining longwall face 综采放顶煤工作面总体配套技术条件
	GB/T 37812-2019 General matching specification for fully-mechanized top coal caving mining face in deeply inclined coal seam 大倾角综放工作面总体配套技术条件
	GB/T 7962.21-2019 Test method of colourless optical glass—Part 21：Resistance to attack by aqueous alkaline solutions 无色光学玻璃测试方法第21部分：耐碱稳定性
	GB/T 26693-2019 Timekeeping instruments—Types，dimensions and nomenclature of watch movements 计时仪器手表机心的形状、尺寸和名称
	GB/T 25217.12-2019 Methods for test, monitoring and prevention of rock burst—Part 12: Prevention method of protective seam mining 冲击地压测定、监测与防治方法第12部分：开采保护层防治方法
	GB/T 37922-2019 Palletized unit load-based logistics system—General technical specification 托盘单元化物流系统通用技术条件
	GB/T 37841-2019 Test method for puncture resistance of plastic film and sheeting 塑料薄膜和薄片耐穿刺性测试方法
	GB/T 37613-2019 Embedded channel steel 预埋槽道型钢
	GB/T 37308-2019 Oil-based needle coke 油系针状焦
	GB/T 18442.2-2019 Static vacuum insulated cryogenic pressure vessels—Part 2:Materials 固定式真空绝热深冷压力容器第2部分:材料
	GB/T 22079-2019 HV polymeric insulators for indoor and outdoor use—General definitions ,test methods and acceptance criteria 户内和户外用高压聚合物绝缘子一般定义、试验方法和接收准则
	GB/T 37329-2019 Aluminum alloy wire for the conductor of electric security fence 电子围栏导体用铝合金线材
	GB/T 38301-2019 Determination of limiting oxygen concentration (LOC) of flammable gases and vapours 可燃气体或蒸气极限氧浓度测定方法
	GB/T 1094.23-2019 Power transformers—Part 23: DC magnetic bias suppression devices 电力变压器第23部分：直流偏磁抑制装置

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