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Calibration Standard for HI 739 Checker HC ®
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Range 0:00 to 2:00 ppm | ASTM D859 Method | 0.01ppm resolution
The HI 775 Checker®HC is a simple, accurate, and cost effective way to measure alkalinity. Designed as a more accurate alternative to chemical test kits, the HI 775 provides quick, accurate results in four easy steps.
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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 0:00 to 2:50 ppm | ascorbic acid method | Resolution 0.01ppm
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Reagents for HI 755 Checker HC ®, 25 Tests
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Range 0.0 - 30.0 ppm | amino acid method | Resolution 0.1ppm
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Range 0 - 150 ppm | ferrous sulfate method | Resolution 1ppm