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Calibration checking set for Checker®HC HI 764 Nitrite Ultra Low Range.
(0 and 100 ppb nitrite)
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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 0:00 to 2:50 ppm | ascorbic acid method | Resolution 0.01ppm
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Reagents for HI 755 Checker HC ®, 25 Tests
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Range 0 - 500 PCU | Platinum Cobalt method | Resolution 5 PCU
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Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm
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Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution
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Range 0.0 - 15 ppm | Molybdenum Blue Method | 0.1ppm resolution
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Range 0 - 150 ppm | ferrous sulfate method | Resolution 1ppm