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ASTM E2904-2017 相控陣探頭特性描述與檢驗(yàn)規(guī)程 Standard Practice for Characterization and Verification of Phas...2023-05-04

GB/T 1844.1-2022塑料符號(hào)和縮略語第1部分：基礎(chǔ)聚合物及其特征性能Plastics-Symbols and abbreviated terms- Part ...2023-04-23

GB/T 41007-2021消費(fèi)品安全化學(xué)危害表征和暴露評(píng)估指南Consumer product safety—Guidelines for characterization...2022-10-24

GB/T 41316-2022分散體系穩(wěn)定性表征指導(dǎo)原則Guidelines for the characterization of dispersion stability...2022-10-26