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HI727 Checker HC ® - Color of Water
1 × ฿3,103.00 -
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Reagents for HI 755 Checker HC ®, 25 Tests
1 × ฿481.50
Subtotal: ฿3,584.50
Calibration Standard for HI 758 Checker HC ®
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Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm
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Range 0.0 - 12.5 ppm | DPD Method | Resolution 0.1ppm
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Range 0:00 to 2:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm
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Range 0 - 600 ppb NO2-N | EPA method 354.1 | Resolution 1 ppb
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Range 0:00 to 2:00 ppm | ASTM D859 Method | 0.01ppm resolution
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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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The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.