Use Indigo brand 0-1000ppm chlorine test strips, when you have to meet strict government regulations for food preparation & handling on cruise ships or seniors' homes. Only $15.50 per 100 strips, discounts for 10+.
Use our free Chlorine Bleach Dilution Calculator to take out the guesswork.
You can use our bleach dilution calculator to correctly calculate the amount of bleach & water needed to prepare the ppm levels indicated above. This calculator will allow for any concentration of chlorine bleach to be used to prepare a sanitizing/disinfecting solution. Watch the video:
In the case of cruise ships, food borne illnesses could spread rapidly because of the relatively crowded conditions and overwhelm on board health care facilities. These high level, 1000ppm (0.1%) chlorine test strips will determine in seconds whether your chlorine bleach solutions are at the higher strengths required.
Simply dip a strip into the bleach solution, ensuring that the small indicator pad is fully immersed for a few moments. Withdraw the strip and compare to the color chart on the pack for immediate, accurate readings.
Test Strip Documentation
|Stability Statement||Certificate of Analysis|
The following table shows how much bleach is needed to make up different concentrations of disinfectant based on an initial concentration of 5% (most store bought bleach sold in North America is rated at 5.25% but loses strength with time).
|Amount of 5% Chlorine Bleach to Make Final Volume|
|1.25||2.5||5||250 (~1 cup)|
|2.5||5||10||500 (~2 cups)|
|5||10||20||1000 (~US Quart)|
|19||38||76||3.8L (US Gal.)|
You can view the structure of the chemical indicator for this strip by clicking on: 3,3’,5,5’ – tetramethylbenzidine.
Here is a brief note from the Center for Disease Control on how to reduce the risk of getting a norovirus based illness on cruise ships, in nursing homes, daycare of schools.