HI93701-03 Free Chlorine Reagents (300 tests)

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HI93701-03 Free Chlorine Reagents (300 tests)

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The HI93701-03 are reagents for the colorimetric determination of free chlorine, for use with Hanna’s line of compatible benchtop and portable meters. These high quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.

Pre-made reagents for ease of use

Prepared with high purity chemicals

Marked with expiration date and lot number for traceability


The HI93701-03 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate colorimetric measurements. These reagents follow the DPD Method in which the reaction between chlorine and reagent causes a pink tint in the sample. By simply adding the packet of HI93701-03 reagent to the sample, the reaction will take place and one of Hanna’s compatible benchtop or portable meter will determine the concentration from the color that is produced. The results will be displayed in mg/L (ppm) of free chlorine. These reagents are designed to be used with samples that have an expected range of 0.00 to 5.00 mg/L free chlorine.



Package sachets
Quantity 300 tests
Method adaptation of the USEPA method 330.5 and Standard Method 4500-Cl G. The reaction between chlorine and the reagents causes a pink tint in the sample.