GB/T 38734-2020.Technical requirements and test methods for household and similar heat pumpwater heaters with CO2 as refrigerants.1范围GB/T 38734规定了以二氧化碳(CO2)为制冷...
GB/T 21137-2020.Heat pump water heater for household and similar application.1范围GB/T 21137规定了家用和类似用途热泵热水器(以下简称热泵热水器)的术语和定...
GB/T 38753-2020.Liquefied natural gas.1范围GB/T 38753规定了液化天然气的质量、试验方法、检验规则及储存与装运的要求。GB/T 38753适用于商品液化天然...
GB/T 20567-2020.Vanadium-nitrogen.1范围GB/T 20567规定了钒氮合金的技术要求、试验方法、检验规则以及包装、标志、储存、运输和质量证明书等。G...
GB/T 38725.2-2020.Spoolable reinforced plastic pipe-Part 2 : Fiber reinforced thermoplastic coiled pipe.1范围GB/T 38725的本部分规定了纤维增强热塑性塑料连续管(以下...
GB/T 38616-2020.Terminology for nano positioning and scanning stage.1范围GB/T 38616界定了纳米定位与扫描平台(以下简称平台)的术语定义。GB/T 38616适用于纳米...
GB/T 20281-2020.Information security technology-Security technical requirements and testing assessment approaches for firewall.1范围GB/T 20281规定了防火墙的等级划分、安...
GB/T 38620-2020.Methods of evaluating the performance of ultrasonic levelmeter.1范围GB/T 38620规定了工业过程测量用物位计的试验条件、试验方法和性能评定的...
GB/T 38615-2020.General specification of ultrasonic levelmeter.1范围GB/T 38615规定了超声波物位计的分类、基本参数、技术要求、检验规则、标志及使用说明...
GB/T 29633.4-2020.Antarctic geographical names-Part 4: Romanizing.1范围GB/T 29633的本部分规定了南极地理实体名称罗马字母拼写的基本原则、要求和方法。...
