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供应气体燃料用塑料管系统. 带熔接连接和机械连接的未增塑聚酰胺 (PA-U) 管系统. 第4部分: 阀门
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 4: Valves
参考页数：17P.;A4
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气体燃烧器和燃气器具用安全和控制设备. 详细要求. 第5部分: 手动气阀
Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Part 5: Manual gas valves
参考页数：33P.;A4
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塑料管道系统.最大工作压力≥500 kPa的室内燃气设备用多层管道系统.第1部分:系统规范
Plastics piping systems - Multilayer pipe systems for indoor gas installations with a maximum operating pressure up to and including 5 bar (500 kPa) - Part 1: Specifications for systems
参考页数：33P.;A4
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气体分析. 采用动态法制备校准混合气体. 第2部分: 活塞泵
Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 2: Piston pumps
参考页数：30P.;A4
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供应气体燃料用塑料管系统. 带熔接连接和机械连接的未增塑聚酰胺(PA-U)管系统. 第3部分: 配件; 修改件1
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 3: Fittings; Amendment 1
参考页数：2P.;A4
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供应气体燃料用塑料管系统. 带熔接连接和机械连接的未增塑聚酰胺(PA-U)管系统. 第2部分: 管; 修改件1
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 2: Pipes; Amendment 1
参考页数：1P.;A4
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供应气体燃料用塑料管系统. 带熔接连接和机械连接的未增塑聚酰胺(PA-U)管系统. 第1部分: 总则; 修改件1
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 1: General; Amendment 1
参考页数：3P.;A4
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气体燃料供给用塑料管道系统.带有热熔接头和机械接头的不加增塑剂的聚酰胺(PA-U)管道系统.第3部分:配件
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 3: Fittings
参考页数：18P;A4
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煤中微量元素测定方法的选择
Selection of methods for the determination of trace elements in coal
参考页数：16P.;A4
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气体燃料供应用塑料管道系统.液状粘固剂粘接的未增塑聚酰胺(PA-U)管道系统.第1部分:总则
Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems jointed by solvent cement - Part 1: General
参考页数：23P;A4
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