Originally Posted By: mrsilv04
Many have found that the best way to avoid delays like this, is to disguise what it is that you're sending. If the USPS thinks it is something that they don't want to transport, it'll take forever. That's how they "get even" with you.
When I send a sample to Blackstone Labs, I drop the word "Labs" and simply put "Blackstone" along with the address on the label. I also never send it using the black plastic tube container, I put the tube inside of a small cardboard box, and stuff newspaper around it so it doesn't rattle, and so the oil can't be heard inside when shaken.
If I do this, it arrives in three days or less... every time.
To clarify, the USPS considers UOA samples to be hazardous in nature because they are flammable and the containers can leak. The above post is the best way to mail any UOA sample. If you're too lazy to do so, you have no room to complain.