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- 2019-05-24 ISO/TS 19807-2 "Nanotechnologies -- Magnetic nanomaterials -- Part 2: Specification of characteristics and measurements for nanostructured superparamagnetic beads for nucleic acid extraction"
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GB/T 19405.2-2003
表面安装技术 第2部分:表面安装元器件的运输和贮存条件 应用指南
Surface mounting technology--Part 2:Transportation and storage conditions of surface mounting devices(SMD)--Application guide
GB/T 13546-1992
Rectifying sampling procedures and tables for inspections by attributes
GB/T 15072.13-2008
贵金属合金化学分析方法 银合金中锡、铈和镧量的测定 电感耦合等离子体原子发射光谱法
Test method of precious metal alloys - Determination of tin , cerium and lanthanium contents for silver alloys - Inductively coupled clasma atomic emission spectrometry
GB/T 12583-1998
Standard test method for measurement of extreme-pressure properties of lubricating fluids(four-ball method)
GB/T 13135-1991
15×16 Dot matrix font set and data set of Yi characters for information interchange
GB/T 24044-2008
Environmental management - Life cycle assessment - Requirements and guidelines