Question 1

So if I wanted to test an old bottle of 35% I could dilute with 3+ parts water and then test right?

Accepted Answer

That is a great question. Our Time Sensitive Peroxide test strip can be used to confirm the strength of 35% food grade peroxide by mixing 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.

Please let us know if you have any further questions!

-Scott

Question 2

Are these clibrations based on H2O2 % by volume or weight?

Accepted Answer

on portion/percentage of H2O2 in the liquid which is H2O2 + H2O; for instance, a 3 % H2O2 makes the stick turns purple in a longer time than say a 12% portion; each stick has a tip of 3mili-meter by 3 mili-meter which will turn eventually purple after a dip

Question 3

Exp date?

Accepted Answer

These expire two years after the date of manufacture, therefore, if you order from "Bartovation" you will be able to use them for ATLEAST 18-24 months after the date of purchase. I can not give a specific exp date as it varies from batch to batch.

Question 4

What is the exp date, the bottle shows 2014?

Accepted Answer

That is an example of what the bottle will look like, and is not a picture of the bottle you will be receiving. This specific P/N expires two years after the date of manufacture, therefore, if you order from "Bartovation" you will be able to use them for ATLEAST 18-24 months after the date of purchase. I can not give a specific exp date as it varies from batch to batch.

Manufacturer	Bartovation
Part number	PPX01V50
Item Weight	30 g
Package Dimensions	8.4 x 4 x 3.8 cm; 30 g
Item model number	PPX01V50
Material	Plastic
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No

2-10% Peroxide

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