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Reagents for HI 726 Checker HC ®, 25 Tests
| Weight | 0.000 kg |
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฿3,103.00
Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution
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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 2:50 ppm | ascorbic acid method | Resolution 0.01ppm
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Range 0.0 - 15 ppm | Molybdenum Blue Method | 0.1ppm resolution
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Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution
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Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb
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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.