freezing not real sure about, refridgerated my understanding is after about 19 days the sample is pretty useless, the big thing is getting it to the proper temp during the test
museikfreak65 Reviewed by museikfreak65 on . Urine Test Substitution I will be having to get a urine test in the near future, however, I do not know when. I was wondering If I get someoneâ??s clean urine and I refrigerate it/freeze it, how long will I be able to keep it/use it in a test before it goes bad? Please give me advice ASAP! Thanks Rating: 5