Taylor K-2006 Kit Help

[ShakerD]

I did all the tests in the kit but I am having a hard time understanding the FC test.

Step two says to "2. Add 2 dippers R-0870. Swirl until dissolved. If free chlorine is present, sample will turn pink." Is that two dippers at 25ml or at 10 ml ? Is that 2 level dippers?

Thanks

Test reads

Chlorine (Free, Combined) Test

1. Rinse and fill large comparator tube 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. Swirl until dissolved. If free chlorine is present, sample will turn pink.

NOTE: If pink color disappears, add R-0870 until color turns pink.

3. Add R-0871 dropwise, swirling and counting after each drop, until color changes from pink to

colorless.

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. Swirl to mix. If combined chlorine is present, sample will turn pink.

6. Add R-0871 dropwise, swirling and counting after each drop, until color changes from pink

to colorless.

7. Multiply drops in Step 6 by drop equivalence (Step 1). Record as ppm combined chlorine (CC).

[chem geek]

Is that two dippers at 25ml or at 10 ml ? Is that 2 level dippers?

The number of dippers or exact amount of DPD powder doesn't matter very much for the FAS-DPD chlorine test. 2 fairly level dippers for a 25 ml sample size is fine as is 1 dipper for a 10 ml sample size. You just need enough to get a reasonably rich color so that the transition to clear will be fairly distinct. If the chlorine level is exceptionally high such that the powder bleaches out (i.e. you get a flash of pink and then it goes clear), then you can add more powder until you get a color that holds.

[ShakerD]

Is that two dippers at 25ml or at 10 ml ? Is that 2 level dippers?

The number of dippers or exact amount of DPD powder doesn't matter very much for the FAS-DPD chlorine test. 2 fairly level dippers for a 25 ml sample size is fine as is 1 dipper for a 10 ml sample size. You just need enough to get a reasonably rich color so that the transition to clear will be fairly distinct. If the chlorine level is exceptionally high such that the powder bleaches out (i.e. you get a flash of pink and then it goes clear), then you can add more powder until you get a color that holds.

Thanks Chem Geek

[ShakerD]

For anyone else here are a bunch of Taylor videos step by step

http://www.taylortechnologies.com/products_choose_slideshow.asp