California Regulatory FAS-DPD Chlorine Testing Kit

Used by Health Department officials and pool operators to meet minimum state and local codes. Uses comparator 9058 sanitizer tests; these tests are titrations to improve accuracy and eliminate color matching problems and Free & Combined Chlorine, 1 drop = 0.2 or 0.5 ppm.
The California Regulatory FAS-DPD kit measures:
pH 7.0-8.0
Cyanuric acid