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GB/T 38394-2019
煤焦油 钠、钙、镁、铁含量的测定 电感耦合等离子体发射光谱法
Coal tar—Determination of sodium, calcium, magnesium and iron content—Inductively coupled plasma optical emission spectrometry
GB/T 38359-2019
Data-analysis methods of strength properties for structural wood and wood-based products
GB/T 38396-2019
Pitch products of coal carbonization—Determination of mesophase content—Microscopical analysis by reflected light
GB/T 39578-2020
Specification for emergency location system based on inertial navigation
GB/T 39580-2020
Health informatics—Health cards—Numbering system and registration procedure for issuer identifiers
GB/T 39583-2020
Requirement of intelligent technology for energy-saving retrofit of existing building
GB/T 39579-2020
Public telecom network—Technical requirements of smart home application