Free Chlorine (Medium Range) Test Kit Replacement Reagents (100 tests) - HI3875-100

Ships within 1-2 Business Days

The HI3875-100 are replacement reagents for the colorimetric determination of free chlorine with the HI3875 Free Chlorine Medium Range Test Kit. There are enough reagents for approximately 100 tests to be used with Hanna’s test kit. 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 HI3875-100 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate free chlorine measurements with the chemical test kit. These reagents follow the DPD (N,N-diethyl-p-phenylenediamine) method to determine free chlorine concentration.


For determination of free chlorine, the DPD powder reagent is added to a sample containing chlorine. The reaction between chlorine and the reagent causes a pink colored complex to form; the greater the concentration, the deeper the color. A Checker Disc is included for an accurate, side-by-side, visual analysis to determine free chlorine concentration. These reagents are designed to be used with samples that have an expected free chlorine range of 0.0 to 3.5 mg/L (ppm) Cl2.

More Information
Package packets
Quantity 100 tests
Method DPD
Write Your Own Review
You're reviewing:Free Chlorine (Medium Range) Test Kit Replacement Reagents (100 tests) - HI3875-100
Your Rating

Related products:

Check items to add to the cart or
Copyright © 1996-2020 Hanna Instruments, Inc.