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Calibration Standard for HI 758 Checker HC ®
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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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Range 0:00 to 3:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm
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Reagents for HI 755 Checker HC ®, 25 Tests
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Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb
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Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution
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Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm
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Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution
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Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution