Free Test Kits

Fill out the fields below to request a free test kit. Our kits meet all USPS requirements. 

If you’re in a hurry, you don’t need our kit to send in a sample. Just package it in anything that won’t leak (something clean and dry with a screw-on lid) and send it to us with one of our oil slips. We’ll process it just like any other sample.

Click here for discount/bulk sampling.

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Outside of North America and the US Territories, test kits are only sent with a bulk purchase.
Note: Once you send your first sample, we automatically send two kits with your info printed on them.
Text updates & results?
By checking this box, you consent to receive SMS messages from Blackstone Laboratories for sample updates and results. Message frequency may vary but will not exceed two messages per report per day, unless triggered by a notification event. Msg. & Data Rates may apply. Reply STOP to opt out. We will never share your mobile information with third parties or affiliates for marketing or promotional purposes at any time.
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