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Potassium chloride electrical conductivity standard solution,1203uS/cm, in line with GB/T27502-2011, 100ml
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Fluoride Standard(standard sample),5.11mg/L, H2O, 20ml
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Fluoride Standard(standard sample),2.00mg/L, H2O, 20ml
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Fluoride Standard(standard sample),0.160μg/mL, H2O, 20ml
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Sodium chloride standard solution,0.01mol/L medium: H2O, 500ml
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Sodium chloride standard solution,3mol/L medium: H2O, 500ml
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Sodium chloride standard solution,0.2mol/L medium: H2O, 500ml
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Sodium chloride standard solution,2mol/L medium: H2O, 500ml
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Sodium chloride standard solution,0.014mol/L medium: H2O, 500ml
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Sodium chloride standard solution,10μg/mL medium: H2O, 500ml
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Sodium chloride standard solution,320μg/mL medium: H2O, 500ml
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