Reagent for the photometric determination of chromium VI in the range up to 1000 micrograms / L. Diphenylcarbohydrazid method.
All Product
Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution
All Product
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.
All Product
Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm
All Product
Range 0.0 - 12.5 ppm | DPD Method | Resolution 0.1ppm
All Product
Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution
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Reagents for HI 755 Checker HC ®, 25 Tests
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Range 0.0 - 99.9 ppm NH3-N | Nessler Method | 0.1ppm resolution
All Product
Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb
081-855-1842
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เครื่องวัดคลอรีน 
เครื่องวัดค่าเหล็ก รุ่น HI721 
