Quote Originally Posted by obso1337
Should have tried some bleach.
Lousy idea.

Bleach will throw off the ph level, causing the sample to be labeled as adulterated. In the drug testing world, an adulterated sample is treated as a failure and a refusal to test. This would disqualify you from participating in any drug-related assistance program that the employer may offer.

Some labs will also use a dipstick which have a testing panel for 'bleach' (eg Urinecheck 7 test stick).

Save the bleach for the laundry.