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Total hardness of water(standard sample)(in terms of calcium carbonate),288mg/L, matrix: H2O, 20ml
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Total hardness solution reference material (in terms of calcium carbonate),0.2μg/mL, matrix: H2O, 500ml
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Total hardness solution reference material (in terms of calcium carbonate),0.9μg/mL, matrix: H2O, 500ml
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Total hardness solution reference material (in terms of calcium carbonate),3.8μg/mL, matrix: H2O, 500ml
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Total hardness solution reference material (in terms of calcium carbonate),10μg/mL, matrix: H2O, 500ml
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Total hardness solution reference material (in terms of calcium carbonate),20mg/L, matrix: H2O, 20ml
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Total hardness solution reference material (in terms of calcium carbonate),100mg/L, matrix: H2O, 20ml
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Total hardness solution reference material (in terms of calcium carbonate),500mg/L, matrix: H2O, 20ml
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pH Buffer standard(standard sample),PH=4.01, 500ml
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pH Buffer standard(standard sample),PH=6.86, 500ml
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pH Buffer standard(standard sample),PH=7.00, 20ml
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