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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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Number of entries (Data is updated on a monthly basis): 82246
GB/T 14598.6-1993
Electrical relays--Part 18:Dimensions for general purpose all-or-nothing relays
GB/T 13849.4-1993
聚烯烃绝缘聚烯烃护套市内通信电缆 第4部分:铜芯、实心聚烯烃绝缘（非填充）自承式、挡潮层聚乙烯护套市内通信电缆
Local telecommunication cables with polyolefin insulation and polyolefin sheath--Part 4:Unfilled,moisture barrier polyethylene sheathed local telecommunication cables with copper conductors,solid polyolefin insulation and integral suspension strand
GB/T 14668-1993
Air quality--Determination of ammonia--Nessler’s reagent colorimetric method
GB/T 13898-1992
Water quality--Determination of ferro and ferric cyanic complex--Atom absorption spectrophotometry
GB/T 13905-1992
Water quality--Determination ofTNT--Sodium sulfite spectrophotometry
Number of entries (Data is updated on a monthly basis): 82246