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Reagenzien für HI 733 Checker HC ®, 25 Tests
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Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb
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Reagents for HI 755 Checker HC ®, 25 Tests
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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.
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Range 0.0 - 12.5 ppm | DPD Method | Resolution 0.1ppm
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Range 0.0 - 30.0 ppm | amino acid method | Resolution 0.1ppm
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Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm
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Range: 0 to 300 ppb. The HI 749 Checker®HC is a simple, accurate, and cost effective way to measure low ranges of chromium VI in fresh water. Designed as a more accurate alternative to chemical test kits, the HI 749 provides quick, accurate results in four easy steps. The HI 749 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1687-92, Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.
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Range 0 - 600 ppb NO2-N | EPA method 354.1 | Resolution 1 ppb