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Reagents for the photometric determination of iron in the range to 5.00 mg / L. Phenanthroline method.
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Range 0:00 to 2:00 ppm | EPA method 340.1 | 0.01ppm resolution
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Range 0 - 150 ppm | ferrous sulfate method | Resolution 1ppm
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Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution
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Range 0:00 to 7:00 g / L | Photometric Method | Resolution 0.01g / L
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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 - 20 ppm | ESPA method | Resolution 0.1ppm
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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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The HI 764 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 764 Checker®HC, press the button and read the results. It’s that easy.