GB/T 37193-2018
Optical functional films—Polyethylene terephthalate(PET) film—Determination of extraction rate 光学功能薄膜-聚对苯二甲酸乙二醇酯(PET)薄膜-萃取率测定方法 |
GB/T 37180-2018
Gas analysis—Handling of calibration gases and gas mixtures—Guidelines 气体分析-校准用纯气和混合气体的使用-指南 |
GB/T 37185-2018
Gas analysis—Determination of indoor harmful volatile organic compounds—"SUMMA canister and silonite tube" and chromatography/mass spectrometry(GC/MS) 气体分析-室内挥发性有害有机物的测定SUMMA罐-硅烷化管采样气相色谱/质谱联用(GC/MS)法 |
GB/T 7190.2-2018
Mechanical draft cooling towers—Part 2:Large open cooling towers 机械通风冷却塔-第2部分:大型开式冷却塔 |
GB/T 11361-2018
Synchronous belt drives—Trapezoidal toothed pulleys with pitch code MXL,XXL,XL,L,H,XH and XXH 同步带传动-节距型号MXL、XXL、XL、L、H、XH和XXH梯形齿带轮 |
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