Quick Fix Question

[masterbatter]

Will be using QF for an upcomming test. However, I am not sure when it will take place. It is for preemployment. I will be keeping it in my car.

I want to do some test run but am not sure how many times I can heat it up in the micro for the (practice) test run. Can I do it 3-4 times or is it toast after two heating test runs? Also, will the heat of summer in the car ruin it?

I am using QF - 4.2 batch F7N-08

I have been clean for 21 days and though my morning pee is positive my afternnon pee after a few pees has a very faint line.

[Burnt Toast]

The QF can be heated and reheated over and over without harming it effectiveness.

That QF batch of F7N-08 means that is was manufactured in July '08 which makes it over a year old. If it were me, Id get some validity test kits and test it to make sure the creatinine, specific gravity, and pH are all still good before using it for the actual U/A.


Storing the QF bottle in a hot car is fine. Just be sure that the QF bottle will not be exposed to any direct sunlight. Exposure to direct sunlight will cause the creatinine, sg, and pH ''buffers" to dissipate, causing the lab to label the sample "not consistent with human urine".

Ive often kept my QF bottles stored in the glovebox, inside an old pint-sized Crown Royal bag. :thumbsup: