Reagent for the photometric determination of chromium VI in the range up to 300 g / L. Diphenylcarbohydrazid method.
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Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb
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Range 0 - 600 ppb NO2-N | EPA method 354.1 | Resolution 1 ppb
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Range 0 - 200 ppb | ascorbic acid method | Resolution 1 ppb
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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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Reagents for HI 755 Checker HC ®, 25 Tests
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Range 0 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm
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Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm
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Range 0.0 - 15 ppm | Molybdenum Blue Method | 0.1ppm resolution
081-855-1842
02-541-4199
เครื่องวัดปริมาณฟอสฟอรัส ช่วงสูง รุ่น HI706 
เครื่องวัดปริมาณฟอสฟอรัส ช่วงต่ำมาก รุ่น HI736 
