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氯化钠二级标准品 volumetric standard, secondary reference material for argentometry, traceable to NIST SRM CertiPUR®
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碳酸钠二级标准品 volumetric standard, secondary reference material for acidimetry, traceable to NIST SRM CertiPUR®
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Compound pesticide reference material kit 317 农药
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C7-C40饱和烷烃混标,certified reference material, 1000 μg/mL each component in hexane
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电导度液标准品 111 mS/cm certified reference material for the measurement
Potassium chloride solution (nominal 111 mS/cm) certified reference material for the measurement
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电导度液标准品 0.147 mS/cm certified reference material for the measurement
Potassium chloride solution (nominal 0.147 mS/cm) certified reference material for the measurement
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电导度液标准品 1.41 mS/cm certified reference material for the measurement
Potassium chloride solution (nominal 1.41 mS/cm) certified reference material for the measurement
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电导度液标准品 1.41 mS/cm certified reference material for the measurement
Potassium chloride solution (nominal 1.41 mS/cm) certified reference material for the measurement
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TSKgel反相色谱柱(货号:各种规格)
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样品瓶(货号:样品瓶) 多种规格
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