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GB/T 39261-2020.Nanotechnologies-Guidance on physico-chemical characterization of engineered nanoscale materials for toxicologic a
GB/T 39914-2021. Variety genuineness and purity testing of main crops with SSR markers-Maize. 1 Scope. GB/T 39914 specifies the te
GB/T 39990-2021. Particulate-Bioaerosol sampler-Technical specification. 1 Scope GB/T 39990 specifies the classification, composit
GB/T 2893.2-2020.Graphical symbols-Safety colours and safety signs-Part 2:Design principles for product safety labels. 1 Scope Thi
GB/T 18106-2021.Classification of retail formats. 1 Scope GB/T 18106 specifies the classification principles and classification of
GB/T 16903-2021. Rules for the presentation of graphical symbols for use on signs - Design principles and requirements for public
GB/T 39755.2-2021. Electronic records management capability system-Part 2: Assessment criterion. 1 Scope This part of GB/T 39755 s
GB/T 39991-2021. Sensory analysis-Service condition for the olive oil tasting glass. 1 Scope GB/T 39991 specifies the general requ