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 Peroxide Test Strips, Low Level, 0-100 ppm [Vial of 100 Strips]

Bartovation Peroxide Test Strips, Low Level, 0-100 ppm [Vial of 100 Strips]

Product ID: 155818838

Details

Brand
Bartovation
Manufacturer
Bartovation
Number of items
1
Recommended uses for product
Testing levels
UPC
643845994921

📏Calibrated 0-100 ppm range

🔵Color change indicates peroxide level

⏱️Results in seconds

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Description

🔵 Stay ahead of water safety—test fast, test smart!

VERSATILE USE - Perfect for pools, spas, drinking water, and industrial sanitation monitoring.
TRUSTED QUALITY - Highly rated with 4.7 stars from 450+ professionals who demand accuracy.
INSTANT PRECISION - Get accurate peroxide readings in just 10 seconds—no waiting, no guesswork.
BROAD DETECTION RANGE - Calibrated from 0 to 100 ppm to cover all your water safety needs.
CONTAMINATION FREE HANDLING - Plastic handle design ensures clean, reliable testing every time.

Bartovation Peroxide Test Strips offer professional-grade, rapid detection of hydrogen peroxide levels from 0 to 100 ppm. Designed for pools, spas, drinking water, and industrial sanitation, these strips deliver precise results in just 10 seconds with a clear blue color scale. Trusted by hundreds of users for accuracy and ease of use, they ensure your water is safe and compliant.

Specifications

ASIN	B01N49KQLQ
Best Sellers Rank	13,411 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 32 in pH Test Strips
Brand	Bartovation
Country Of Origin	USA
Customer Reviews	4.7 out of 5 stars 452 Reviews
Manufacturer	Bartovation
Manufacturer Part Number	PPX02V100-ML
Material	PE_(Polyethylene), PS_(Polystyrene)
Material Type	PE_(Polyethylene), PS_(Polystyrene)
Model Number	PPX02V100
Number of items	1
Recommended Uses For Product	Testing peroxide levels in drinking water, pools, and hot tubs
Recommended uses for product	Testing peroxide levels in drinking water, pools, and hot tubs
UPC	643845994921

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

K**N

Using to test peroxide levels in hot tub. They work!

I bought these to test the peroxide levels in our hot tub, which we're disinfecting with hydrogen peroxide rather than toxic chlorine.. They work really well.. I have a consistant reading between 50-100 ppm's, which is very good.. Just to make sure they work, I tested one in a glass of tap water and it didn't turn any color at all, which indicated to me that they are indeed giving an accurate reading. Price is very fair, too.

7.04.2018

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NZ$104

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to New Zealand.

Secure transaction

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