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It's not good anymore for testing once cold, it has to be fresh warm urine for the test to work properly.
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∙ 13y ago
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How long does a urine sample stay good for if being tested for THC?
A urine sample usually lasts up to 7 days if frozen.
How long will a frozen urine sample be viable?
5 years
How long can a urine sample be held for testing before it is no good?
2 weeks
How long are urine samples good for testing?
If properly sealed and stored, urine samples are good for testing up to 24 hours after the sample given. The urine sample should be in a sterile container within a sealed plastic bag and stored in a refrigerator.
How long can stored urine be retested for drug screening?
The confirmation sample is frozen, so they can test it as long as they want to keep it in the freezer. Normally it's only six months.
How long can a urine sample stay good before being analized for a drug screening?
about two months...
How long will traces of cocaine stay in a urine sample?
a week
How long can cocaine stay in a urine sample if refrigerated?
How long does molly show up in urrine
How long after you quit smoking will cotinine show up in a urine sample?
3weeks
How long does urine stay good for testing?
Urine, when stored in an air tight container, free from contamination and help under constant specified temperature can be used for drug testing over a lengthy time period. Frozen urine can be kept indefinitely for testing.
How long does the drug ice by smoking stay in your system and can it be detected by a urine sample.?
72 hours
How long does urine stay fresh if refrigerated it is for a drug and alcohol test?
depends what you mean by fresh. If you mean no bug growth then it also depends on the preservatives. No preservatives, less than 24 hours. with boric acid preservative, maybe a weekend. If you mean the substances tested in the urine. e.g. glucose, bence Jones protein etc, then it depends on what the test is for. The fresher the sample, the more accurate the result
