- Sep 23, 2015
- 2,009
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Astral Viron V25
Easy way to measure strength of bleach/liquid chlorine.
A 10,000 to 1 dilution of chlorine will result in chlorine ppm equal to its strength (percent). All you need to do is to make the 10,000 to 1 dilution, then measure the ppm using a FAS-DPD test kit. Example: If the dilution measures 8.5ppm, then your bleach strength is 8.5%.
Step 1: Measure 1 liter of Deionized or Distilled water. Here I’m measuring 1000 grams (1 liter) of water using a kitchen scale.
Step 2: Measure 0.1 ml of the bleach/liquid chlorine. This is easy to do by using a 0.3 ml u-100 insulin syringe and filling it to the 10 units mark (10 units of u-100 insulin is 0.1 ml)
Step 3: Add the 0.1 ml of bleach to the 1 liter of water and mix.
Step 4: Using a FAS-DPD test kit, measure the FC ppm (CC should be zero) of the dilution. The measured ppm is the percent strength of your bleach/liquid chlorine.
From Chlorine Date Code Decoder/Easy Way to Measure Strength.
I believe I did mention one ml in one liter, it does sound simpler. Maybe add it to the “Determining % of liquid chlorine” from before.
I just happen to have a one ml graduated pipette and a 500ml volumetric flask (as you do). 0.5ml in 500ml of distilled will work too. (Love taking in SI units
).Although I’m not sure the returns department at Home Depot will get the dilution and FAS/DPD test concept.
