Taylor K-1515-C

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DROP TEST FAS-DPD CHLORINE (1 drop = 0.2 or 0.5 ppm)

COMPONENTS: 1 x 5216 Instruction 1 x 9198Y Sample Tube, Graduated, 25 mL, plastic w/cap and yellow dot 1 x R-0003-C DPD Reagent #3, 2 oz, DB 1 x R-0870-I DPD Powder, 10 g 2 x R-0871-C FAS-DPD Titrating Reagent (chlorine),2 oz, DB.

Chlorine Tests (Free & Combined)

1. Rinse and fill sample tube (#9198Y) to desired mark with water to be tested. NOTE: For 1 drop = 0.2 ppm, use 25 mL sample. For 1 drop = 0.5 ppm, use 10 mL sample.
2. Add 2 dippers R-0870 DPD Powder. Swirl until dissolved. Sample will turn pink if free chlorine is present. NOTE: If pink color disappears, add R-0870 DPD Powder until color turns pink.
3. Add R-0871 FAS-DPD Titrating Reagent (chlorine) 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) free chlorine (FC).
5. Add 5 drops R-0003 DPD Reagent #3. Swirl to mix. Sample will turn pink if combined chlorine is present.
6. Add R-0871 FAS-DPD Titrating Reagent (chlorine) dropwise, swirling and counting after each drop, until color changes from pink to colorless. Always hold bottle in vertical position.
7. Multiply drops in Step 6 by drop equivalence (Step 1). Record as ppm combined chlorine (CC).