2000ppm Free Chlorine

SKU: 33815-2000

$15.95USD or lower Each

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Quantity1+2+ 3+ 10+ 100+ 
Price for each$15.95USD$15.65USD$15.35USD$14.45USD$12.95USD
Your savings - 1.88%3.76%9.4%18.81%
[4.9]   5 Reviews    | Write a Review

Buy Indigo™ brand 0-2000ppm chlorine test strips to meet strict daycare regulations for meeting or exceeding sanitizing & disinfecting standards. Indigo™ brand 0-2000ppm chlorine test strips have color bars at 50-200 and 500-800ppm to do this for only $15.95 per 100 strips.

Buy just 3 vials of Indigo™ 2000ppm strips & we're cheaper than so called "free shipping". How long are they good for? Read: Sanitizer Test Strip Expiration; Good Today, Dead Tomorrow?

Use our free Chlorine Bleach Dilution Calculator to take out the guesswork and & ensure your children and seniors are safe.

The color chart has ranges for sanitization (50-200ppm) & disinfection (500-800ppm). 800ppm is considered the maximum level for child safety in the event of ingestion.

You can use our free Chlorine 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 but in this instance the video shows an 8.25% solution diluted to produce 650ppm (the midway point of 500-800ppm for disinfection as shown on the color chart).

Note: the video below has references to our original domain, indigo.com. Please ignore and bookmark us at www.indigoinstruments.com.

You may also want to look at the following 2 pdf files from the State of California for "Sanitize Safely & Effectively" & "What is Safe & Effective Use of Bleach"
  • Indigo™ test strips come in desiccant lined bottles for guaranteed 2 year shelf life.
  • Actual shelf life, if left unopened, is 5 years or more after purchase.
  • These strips measure free (available) chlorine
  • The number of strips (100) per vial is approximate.

Test Strip Documentation

Stability Statement Certificate of Analysis
The table shows the amount of bleach needed for different ppm levels based on an initial concentration of 5% (most bleach sold in North America is rated at 5.25% but loses strength with time).

  1. Choose a container large enough to hold the final amount of diluted bleach you want to make.
  2. Measure & pour into the container the amount of 5% (initial) chlorine bleach you need.
  3. Fill the container with water to the level of the Final Volume.
  4. For concentrations other than 5%, use our Dilution Calculator to determine what you need.
  5. If you are unfamiliar with millilitres (mL), you can use this Metric to American volume converter.
  6. If you don't have the exact measuring tool, round up not down. i.e. for 47.5ml use a 1/4 cup.

Amount of 5% Chlorine Bleach to Make Final Volume
50 (ppm)
ml Bleach
200 (ppm)
ml Bleach
500 (ppm)
ml Bleach
800 (ppm)
ml Bleach
Volume (ml)
0.25 1 2.5 4 250ml
1 4 10 16 1000ml
4 16 40 64 4000ml
0.23 0.9 2.25 3.6 225ml (US cup)
0.95 3.8 9.5 15.2 950ml (US Quart)
3.8 15.2 38 60.8 3.8L (US Gal.)

You can view the structure of the chemical indicator for this strip by clicking on: 3,3’,5,5’ – tetramethylbenzidine.
Reviews (5)
Great web site. Impressed with quick delivery. Will definitely be ordering again
— Bob
Easy use of website, Quick delivery. Great customer care.
— Ruth
— Indigo: Happy to help with the testing needs of your company.
We operate an Adult Daycare program and our local supplier, for these strips, stopped carrying them in the strength we needed several years ago. I found Indigo online and we get fast, efficient service with good pricing. Website is very "User Friendly". Very satisfied with this Vendor.
— Connie
Excellent website, and quick delivery. Very happy with service.
— Stu
I ordered this product for my child care center. The order arrived quickly and the product worked well.
— Sr. Paul Mary
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