have seen a couple of posts where they have detected the synthetic urine. Since this is a preemployment test only, are the dilution thresholds less, and is that type of test less likely to uncover the synthetic urine?
"Non-human" urine samples are ruled when the creatinine level is less than 2 mg/dL. As long as the synthetic is from a reputable manufacturer and is a current batch thats been stored properly (ie no direct sunlight), it will pass the validity checks.
The synthetic can be tested at home with an adulteration test strip to ensure that the creatinine, specific gravity, and pH are all within acceptable ranges.

For all validity checks, a "diluted" sample is ruled when the creatinine level is between 2 - 20 mg/dL and the specific gravity is between 1.0010 - 1.0030, as outlined in the criteria established by the United States Dept of Health & Human Services (DHHS).
Burnt Toast Reviewed by Burnt Toast on . HELP No bud in 23 days - positive on home test I have until October 24 to prepare for a drug test. I was offered and accepted the job on September 23. Although my (hopefully) new employer did not indicate that I would be drug tested, I asked for and received a copy of the employee handbook which indicated that all new employees were subject to a preemployment drug test. After reading the handbook, I was able to postpone my start date until October 24, giving me 30 days to clean out. I am 6'1, 260 pounds and was a daily user for the Rating: 5