国家标准物质-标准物质实验室【北京华研】
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IAEA-B-4 TourmalineTourmaline Tourmaline 1g
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IAEA-S-4 SulfurSulfur Sulfur 0.5g
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IAEA-S-3 Silver SulfideSilver Sulfide Silver Sulfide 0.5g
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IAEA-S-2 Silver SulfideSilver Sulfide Silver Sulfide 0.5g
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IAEA-S-1 Silver SulfideSilver Sulfide Silver Sulfide 0.5g
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IAEA-SO-6 Barium SulfateBarium Sulfate Barium Sulfate 0.5g
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IAEA-SO-5 Barium SulfateBarium Sulfate Barium Sulfate 0.5g
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IAEA-CH-7 PolyethylenePolyethylene Polyethylene 3.6g
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NBS22 OilOil Oil 1ml
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USGS24 GraphiteGraphite Graphite 0.5g
标准物质实验室 · 京ICP备19035853号-1