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Silica Low Range Calibration Standard Set
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Reagents for HI 755 Checker HC ®, 25 Tests
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The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.
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Range 0.0 - 12.5 ppm | DPD Method | Resolution 0.1ppm
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