2021 year China issued GB standards list


	GB/T 7308.1-2021 Plain bearings—Thin-walled half bearings with or without flange—Part 1：Tolerances, design features and methods of test 滑动轴承有法兰或无法兰薄壁轴瓦第1部分:公差、结构要素和检验方法
	GB/T 40169-2021 Compression-moulded plates of ultra-high-molecular-weight polyethylene(PE-UHMW)and high density polyethylene (PE-HD) 超高分子量聚乙烯（PE-UHMW）和高密度聚乙烯（PE-HD）模塑板材
	GB/T 7308.2-2021 Plain bearings—Thin-walled half bearings with or without flange—Part 2:Measurement of wall thickness and flange thickness 滑动轴承有法兰或无法兰薄壁轴瓦第2部分:轴瓦壁厚和法兰厚度测量
	GB/T 40168-2021 Corrugating medium—Determination of the edge crush resistance after laboratory fluting 瓦楞芯纸实验室起楞后边压强度的测定
	GB/T 40167-2021 Paper and board—Accelerated ageing (100 ℃) 纸和纸板加速老化（100℃）
	GB/T 7308.3-2021 Plain bearings—Thin-walled half bearings with or without flange—Part 3: Measurement of peripheral length 滑动轴承有法兰或无法兰薄壁轴瓦第3部分:周长测量
	GB/T 39998-2021 Paper, board and paper products—Determination of alkylphenol polyethoxylates—HPLC-MS method 纸、纸板和纸制品烷基苯酚聚氧乙烯醚类的测定高效液相色谱质谱法
	GB/T 1149.4-2021 Internal combustion engines—Piston rings—Part 4:Quality requirements 内燃机活塞环第4部分：质量要求
	GB/T 40239-2021 Meteorological grades for urban snow hazard 城市雪灾气象等级
	GB/T 39953-2021 5-axis simultaneous machining center—Testing of the accuracy for RTCP 五轴联动加工中心 RTCP精度检验
	GB/T 40234-2021 Technical requirements of common information models for smart hydropower plant 智能水电厂公共信息模型技术要求
	GB/T 39973-2021 Implementation guidance for energy management systems in textile industry 纺织行业能源管理体系实施指南
	GB/T 39980-2021 Mechanical parking system—Design rules 机械式停车设备设计规范
	GB/T 39951-2021 Evaluation method for degradability of disposable paper products 一次性纸制品降解性能评价方法
	GB/T 39983-2021 Ball arc guide—Acceptance specifications 滚珠圆弧导轨副验收技术条件
	GB/T 4214.9-2021 Test method for noise of household and similar electrical appliances—Particular requirements for fans 家用和类似用途电器噪声测试方法风扇的特殊要求
	GB/T 39948-2021 Method of heat distribution test for food thermal sterilization equipments 食品热力杀菌设备热分布测试规程
	GB/T 39952-2021 Titanium dioxide-based dispersion for photocatalysis 二氧化钛基光催化分散液
	GB/T 39944-2021 Digital cone yarn dyeing complete equipment—General technical specification 筒子纱数字化染色成套装备通用技术条件
	GB/T 1454-2021 Test method for edgewise compressive properties of sandwich constructions 夹层结构侧压性能试验方法

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