Calibration Standard for HI 717 Checker HC ®
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Reagents for HI 755 Checker HC ®, 25 Tests
All Product
Range 0:00 to 7:00 g / L | Photometric Method | Resolution 0.01g / L
All Product
Range 0.0 - 30.0 ppm | amino acid method | Resolution 0.1ppm
All Product
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.
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Range 0:00 to 5:00 ppm | EPA Method 315 B | 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 to 2:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm
All Product
Range 0 - 600 ppb NO2-N | EPA method 354.1 | Resolution 1 ppb
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HI770 Checker HC ® - Silica, HR 
เครื่องวัดปริมาณไนไตรท์ ช่วงสูง ในตัวอย่างน้ำ รุ่น HI708 
HI761 Checker HC ® - Total Chlorine, ULR 
