Indigo® 1-10% peroxide test strips can confirm the dilution of concentrated (35%) hydrogen peroxide down to 2, 3, 5, 7 or 10%. Undiluted high concentration hydrogen peroxide can be hazardous so handle with caution. Read the label before opening and use PPE such as safety goggles & rubber gloves.
All Indigo® hydrogen peroxide test strips come with a 3 year minimum guaranteed shelf life with full documentation including Certificate of Analysis, Stability & SDS; Certificate of Conformance on request. Be prepared for any health & safety audit or inspection. See Documentation below.
Indigo® test strips change to only one color, black, with the concentration indicated by the speed of the color change. This timed response differs from the other peroxide strips which use color charts.
These strips can experience a "lag time" before any color change is observed and a longer completion time when testing hydrogen peroxide contact lens cleaning solutions or other custom formulations. Calibration may be required when testing these.
Note: The bracketed numbers in the two columns for 1, 2, 3% are for contact solutions & differ due to additives.
35% Food Grade Hydrogen Peroxide Dilution Chart
Concentration
Color Begins
Reaction Completion
10% (100,000ppm)
0 seconds
3-6 seconds
7% (70,000ppm)
4 seconds
7-12 seconds
5% (50,000ppm)
6 seconds
14-18 seconds
3% (30,000ppm)
20 seconds (30)
35-45 seconds (~55)
2% (20,000ppm)
30 seconds (~40)
65-75 seconds (~100-140)
1% (10,000ppm)
60 seconds (~75)
150-240 seconds (~180-270)
Calculate your peroxide concentration
Reaction Time (sec.) vs. Peroxide Concentration (%) Graph
Enter up to 3 reaction time readings in seconds and click the button to calculate the peroxide concentration.
The number of strips per vial (100) is approximate.
Suitable for detection of hydroperoxides and ether peroxides. Polymeric peroxides, which can form in diethylether, are not detected.Organic peroxides, such as di-terc-butyl peroxide, di-cumyl peroxide or terc-butyl perbenzoate, either do not react or react with significantly reduced sensitivity.
Indigo® brand hydrogen peroxide test strips are Made in USA & tested for accuracy using NIST compliant standards.
Documentation
Test Strip Documentation
Stability Statement
Certificate of Analysis
SDS
Calibration Fluid CoA
Indigo® brand hydrogen peroxide test strips are Made in USA & tested for accuracy using NIST compliant standards.
Reviews (5)
2020-06-17
Excellent service! Product arrived in three days as expected. Item is very good for my various solutions of H2O2 concentrations. Saves a lot of calculations and guessing. Definitely keep them in mind for other items.
Once I figured out which end of the strips to use and when navy blue turned to black, I got the hang of it. If you're color blind, this product may be challenging. Using product to prepare rinse solutions.
— R. Voltmer
— Indigo:
As you've noted, these are more challenging than other strips but once you get a bit of practice, they're just as reliable. Use our Dilution Calculator first though so you know you are in the right range & the strips simply confirm you've done it right.
2020-05-11
Great product and service! Package arrived from North America to NZ within a week during the covid-19 shut down period. Will be ordering more in near future. Thank you!
— B Harry
— Indigo:
Happy to help our friends from Down Under!
2020-05-10
I am quite happy with my purchase, the test strips do exactly what I need them to do. Price was quite fair and reasonable. Shipping was a bit slow but that is not your fault with the fiasco Covid-19 created. If I ever need a similar product I will most certainly look to Indigo Instruments to supply my need.
— SteveK
— Indigo:
Thanks for the kind words.
2020-04-19
Great for a quick check of H2O2 percentage. Have used for years for in-process redundancy testing and shelf life testing of finished goods.
Great to hear. Of course, you can take out all the guess work by using our Dilution Calculator. For more info, see also: Diluting Chlorine, Peroxide or Quat Sanitizers is Easy