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

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.

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

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

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%?

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.

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?

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.

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Bartovation Hydrogen Peroxide H2O2 Test Strips, Low Level, 0-100 Ppm [Vial Of 100 Strips]

Bartovation Hydrogen Peroxide H2O2 Test Strips, Low Level, 0-100 Ppm [Vial Of 100 Strips]

Product ID: 280483540

Details

Brand
Bartovation
Manufacturer
Bartovation
Recommended uses for product
Drinking Water
UPC
643845994921
Unit count
100.00 Count

💧0-100 ppm precision range

⏱️results in seconds

🇺🇸Made in USA quality

SAR 217

Duties & taxes included

In stock

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Description

💧 Stay ahead of contamination — test smarter, live safer!

MESS FREE HANDLING DESIGN - Long plastic strips keep fingers dry and clean during testing
TRUSTED AMERICAN CRAFTSMANSHIP - Proudly made in the USA for reliability and quality assurance
INSTANT CLARITY ON WATER SAFETY - Get peroxide levels in seconds with ultra-fast reaction time
PRECISION CALIBRATED FOR CONFIDENCE - Accurate readings at 0, 1, 3, 10, 50, and 100 ppm to ensure exact monitoring
VERSATILE TESTING FOR MULTIPLE USES - Perfect for drinking water, pools, hot tubs, and industrial sanitation

Bartovation Hydrogen Peroxide H2O2 Test Strips offer rapid, precise detection of residual peroxide levels from 0 to 100 ppm, ideal for ensuring water safety in drinking water, pools, and hot tubs. Each vial contains 100 easy-to-use strips with a mess-free design, delivering reliable results in seconds. Proudly made in the USA, these strips provide professional-grade accuracy trusted across multiple industries.

Specifications

ASIN	B01N49KQLQ
Brand	Bartovation
Brand Name	Bartovation
Customer Reviews	4.7 out of 5 stars 452 Reviews
Manufacturer	Bartovation
Model Number	PPX02V100
Number of Items	100
Part Number	PPX02V100-ML
Recommended Uses For Product	Drinking Water, Pools, Hot Tubs
Recommended uses for product	Drinking Water, Pools, Hot Tubs
UPC	643845994921
Unit Count	100.00 Count
Unit count	100.00 Count

Reviews

T**G

Seem to work perfectly

Does what it says - when using the test strips, the colours really match the printed packet.

13.04.2026

P**H

Tutto perfetto

Consegna veloce e prezzo qualita`ottimo!

25.10.2020

R**.

Works great with cold plunge

I use these strips to measure out the hydrogen peroxide in my cold plunge and they work very well.

1.07.2025

P**E

Works Great

We use these to test our hot tub and they are very accurate.

19.04.2025

A**A

Value

Work very good and as accurate as my original strips for less money

24.04.2026

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