Used for compliance with daycare regulations that require tests for sanitizing & disinfecting solutions
Easy to read increments at 0, 50, 100, 250, 500, and 1,000 ppm
Only takes one minute for accurate results!
No expensive equipment needed!
Long plastic strips mean no mess AND you can keep your fingers away from the chlorine!
This test strip measures levels of free available chlorine (FAC) in a solution. The bottle has easy to read color blocks at 0, 50, 100, 250, 500, and 1,000 ppm. This test strip is very easy to use, and gives results in just seconds. This test strip is used where higher levels of disinfection are required. The higher range provides a much higher degree of certainty that all organisms are either killed or rendered ineffective. It is ideal for daycares, senior homes, and cruise lines sanitation requirements.
How to test for chlorine:
Remove one Free Chlorine test strip from the vial, being careful not to touch the test pad with your fingers.
Dip the test strip into the solution being tested for 1-2 seconds.
Remove and immediately compare against the color chart.
Additional information
Weight
1.5 oz
Dimensions
4 × 2.75 × 2.75 in
Frequently Asked Questions (FAQ)
Q: Why did my chlorine test strips turn blue instead of showing the expected range of purples on the color chart?
A: The blue color you’re seeing on the test strips likely indicates the presence of other oxidizing agents in your solution—most commonly hydrogen peroxide or peracetic acid. These substances can interfere with chlorine test strips by reacting with the test pad, causing a false reading. When strong oxidizers are present in higher concentrations, they can overwhelm the test strip’s chemistry and turn it blue, which is not part of the normal chlorine range indicated by the purple color scale.
To confirm whether your test strips are functioning correctly, we recommend a simple control test: mix 1 tablespoon of regular household bleach (sodium hypochlorite) into 1 gallon of deionized water. This should produce a free chlorine concentration between 200–400 ppm, depending on the bleach’s original strength. If your test strips show the correct purple color in this solution, they are working properly, and the issue is with your test sample—most likely due to interference from other oxidizers.
![Free Chlorine/Bleach Test Strips, <span class="bldppm">0-1000 ppm</span>, Designed for Cruises, Daycares, and Senior Homes for Sanitizing and Disinfecting [Vial of 100 Strips]](https://bartovation.com/wp-content/uploads/2020/03/IMG_20191114_221143-1-1.jpg)
![Free Chlorine/Bleach Test Strips, <span class="bldppm">0-1000 ppm</span>, Designed for Cruises, Daycares, and Senior Homes for Sanitizing and Disinfecting [Vial of 100 Strips] - Image 2](https://bartovation.com/wp-content/uploads/2020/03/PCL05V100-photo-2.png)
