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GB/T 15076.3-2019
钽铌化学分析方法 第3部分: 铜量的测定 火焰原子吸收光谱法
Methods for chemical analysis of tantalum and niobium—Part 3:Determination of copper content—Flame atomic absorption spectrometry
GB/T 17568-2019
Specifications for design construction and use of gamma irradiation facilities
GB/T 37538-2019
Specification for online monitoring of E-commerce transacting commodity
GB/T 2423.10-2019
Environmental testing—Part 2:Test methods—Test Fc:Vibration(sinusoidal)
GB/T 35698.2-2019
Calculation of effects of short-circuit currents—Part 2: Examples of calculation
GB/T 37508-2019
Determination of preservatives in moulding clay—High performance liquid chromatography method
GB/T 37528-2019
General technical specification for biological filter for nitrogen removal
GB/T 37761-2019
Technical requirements of PLC control device of power transformer cooling system