Water Quality Test Kit Color Card R028A PDF
2015-10-2 · Dip one test strip into a 50ml (2oz) water sample with a constant, gentle back and forth motion for 20 seconds. Remove the strip and shake once, briskly, to remove excess water. Wait 20 seconds, then match to the color chart above. Free Chlorine PPM (mg/L) 0.0 0.05 0.6 1.50.2 104.0* US Patent No. 5491094, No. 6541269 mg/L 0.0 0.3 0.5 1.0 2.0
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