Question 1

What would I use to test if  3% H2O2 is still potent?

Accepted Answer

3% is 30,000 ppm, so NOT these 0-100 ppm test strips! You need Very High Level 2-10% test strips, which are available on Amazon.

Question 2

While this product be able to measure a 7% solution of hydrogen peroxide?

Accepted Answer

This product will not be able to measure that high of a level of hydrogen Peroxide. What you should get instead is the  Bartovation Food Grade Time Sensitive Very High Level Hydrogen Peroxide (h2o2) Test Strips, up to 10% Concentration (ASIN: B01CDX4ZB6). Those strips will help you know if your solution is approximately 7% because it will give you a reading in between 5% and 10%.

Please let us know if you have any more questions or if there is anything else I can help you with!

Best,
Scott

Question 3

How do i test 35% food grade hydrogen peroxide with your test strips. what ppm would i read on the container. what would i read if i reduced the 35%?

Accepted Answer

This product is designed to test residual (low level) peroxide, so, although it could be used to test food grade hydrogen peroxide, it would require a very precise dilution ratio that would be hard to achieve accurately. For testing food grade peroxide, I recommend using our "very high level" strip (https://www.amazon.com/dp/B01CDX4ZB6), where you would: mix 1 part 35% peroxide solution with 2.5 parts water to yield a concentration of 10%. If the color change is not immediate, then the initial concentration was not 35% (or a mistake was made in the dilution). Try other dilutions to zero in on the actual strength, e.g. 1:6 should give you 5%; etc.

Question 4

I bought these for my pool, after putting 5 gallon of 35% h2o2 in a 25000 gallon pool water, the strip turns black, what does that mean?

Accepted Answer

As far as I recall the amount needed is 1 cup peroxide for every 250 gallons. Black is probably way higher than shades of blue that can register on strip; probably over 100 ppm.

ASIN	B01N49KQLQ
Best Sellers Rank	#18,132 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #40 in Swimming Pool Test Strips
Brand Name	Bartovation
Customer Reviews	4.8 4.8 out of 5 stars (474)
Item Highlight	Low level, residual, peroxide testing, drinking water, pools, hot tubs, cold plunges, float tanks, Made in USA
Manufacturer	Bartovation
Model Number	PPX02V100
Number of Items	100
Part Number	PPX02V100-ML
Recommended Uses For Product	Drinking Water, Pools, Hot Tubs
UPC	643845994921
Unit Count	100 Count

0-100 ppm Peroxide

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