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Reagent for the photometric determination of manganese in the range up to 300 ug / L. PAN method.
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Range 0:00 to 2:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm
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Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb
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Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm
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Range 0 - 600 ppb NO2-N | EPA method 354.1 | Resolution 1 ppb
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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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The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.
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Range 0 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm
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Range 0.0 - 12.5 ppm | DPD Method | Resolution 0.1ppm