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Industrial Test Systems SenSafe 481026 Free Chlorine Test Strip | USEPA Approved Method D99-003 | 0-6ppm | 0.05ppm Detection | No Bleach-Out | Bottle of 50 | Drinking Water, Food Service, Restaurant music_UK_update_2021 PERFECT GIFTYou can learn musicIndustrial Test Systems SenSafe 481026 Free Chlorine Test Strip USEPA Approved Method D99 003 0 6ppm 0. 05ppm Detection No Bleach Out Bottle of 50 Drinking Water, Food Service, Restaurant SenSafe Free Chlorine Water Check test strips are the ONLY EPA ACCEPTED (Published in the 2007 Federal Register (vol 72, no 47, Monday, March 12, 2007 p. 11204, ITS method D99 003)) test strips used for drinking water compliance monitoring. They combine a wide range