Phone: (519) 746-4761

Canadian Address:

169 Lexington Court, Unit I

Waterloo, ON, N2J 4R9


US Address:

Niagara Falls, NY 14305

Canadian/International ship from Waterloo; US orders from Buffalo, NY.

For a detailed quote including applicable taxes, proceed to checkout

Chlorine/Iodine Test Strips

Buy Indigo brand chlorine test strips for restaurants, daycare, health care.

Chlorine bleach test strips in 6 versions for very low to very high levels.

US made with 2 year shelf life & 100 strips/vial: Quality + Quantity beats "free" freight.

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Bleach Dilution Calculator

Diluting Chlorine in American Units: 

1 tsp=5ml
1 tbsp=15ml
1 cup=235ml
1 quart=950ml
1 Gallon=3800ml

To make 1 gallon of 200ppm chlorine bleach solution, enter these in the Dilution Calculator.

  1. 5.25% for the concentration (step 1).
  2. Then 200ppm for step (2).
  3. Then 3800ml for step (3)
  4. Press Calculate.

Result: Amount of bottled chlorine bleach you need to mix with water.

How to Use Chlorine Test Strips?

Instructions for chlorine strip use is the same regardless of concentration range.

  1. Remove test strip from vial.
  2. If paper, dip any end in bleach solution
  3. If plastic, dip pad end in bleach solution
  4. Remove and compare immediately to color chart

Sodium hypochlorite is the most commonly sold form of chlorine disinfectant & is often simply referred to as bleach. Click here for more information about other chemical forms of chlorine disinfectant.