> DROP TEST > FAS-DPD BROMINE (1 drop = 0.5 or 1.25 ppm) COMPONENTS: 1 x 5524 Instruction 1 x 9198 Sample Tube, Graduated, 25 mL, plastic w/cap 1 x R-0870 DPD Powder 1 x R-0872 FAS-DPD Titrating Reagent (bromine), DB TO ORDER REPLACEMENT PARTS AND REAGENTS CALL TOLL-FREE 800-TEST KIT (800-837-8548). PROCEDURE: CAREFULLY READ AND FOLLOW PRECAUTIONS ON REAGENT LABELS. KEEP REAGENTS AWAY FROM CHILDREN. 1. Rinse and fill sample tube to desired mark with water to be tested. NOTE: For 1 drop = 0.5 ppm, use 25 mL sample. For 1 drop = 1.25 ppm, use 10 mL sample. 2. Add 2 dippers R-0870 DPD Powder. Swirl until dissolved. Sample will turn pink if bromine is present. NOTE: If pink color disappears, add R-0870 DPD Powder until color turns pink. 3. Add R-0872 FAS-DPD Titrating Reagent (bromine) dropwise, swirling and counting after each drop, until color changes from pink to colorless. Always hold bottle in vertical position. 4. Multiply drops in Step 3 by drop equivalence (Step 1). Record as parts per million (ppm) total bromine. 7/08