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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 24610.3-2019
滚动轴承 振动测量方法 第3部分:具有圆柱孔和圆柱外表面的调心滚子轴承和圆锥滚子轴承
Rolling bearings-Measuring methods for vibration-Part 3:Radial spherical and tapered roller bearings with cylindrical bore and outside surface
GB/T 38248-2019
Evaluation methods of optical radiation safety for household laser display systems
GB/T 38093-2019
Determination of the high-molecular polymers in β-lactam antibiotics—Gel chromatography
GB/T 38175-2019
Hydraulic fluid power—Filter elements—Determination of resistance to flow fatigue using high viscosity fluid
GB/T 38089-2019
Technical specification of efficacy evaluation for degradation of organophosphorous pesticides by biological products





