Consistency is key!
  • A representative sample usually consists of about 20 core samples from a lot however, this may vary depending on the size of the lot to be tested.

  • Collect the sample in an airtight plastic bag (i.e. Ziploc).

    • Paper bags will absorb moisture from your sample, thus altering the final results.

    • Heat may cause condensation which will also alter the final results. To ensure this does not happen, keep your sample in a cool, dark place until it is ready to be sent. 

  • Properly label your sample and ship it to the lab.

    • Print out our ID tags and send one in with each sample. 

    • Equine tests must be specifically labeled.

      • The equine test is for grasses only!

If you have any questions or concerns about hay sampling, feel free to give us a call at (209)333-3337 or message us using the form located on the Contact Info page. 

SIERRA TESTING SERVICE:  9450 E. Collier Rd.  *  Acampo, CA 95220  *  209-333-3337 *

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Hours Of Operation

Monday - Saturday   8:00 AM - 5:00 PM

*Please call prior to Saturday testing*

Sunday                      Closed