This same question of how long does urine samples last, was posed on the website www.askdoctorforfree.com and was answered by a contributor going by the name of Doctor Anant Paul. According to the doctor natural human urine has a very short shelf life of around 24 hours at the outside, even if refrigerated. After this time the sample is likely to become contaminated by bacteria.
- Is that the same for Synthetic Urine?
- Is the temperature really THAT important?
- What do you mean by "it really depends on what the urine is being used for"?
- Eurghh! Dare I ask in what ways?