AAFCO Check Samples
Magruder Check Samples
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Magruder Back Samples



The Magruder Fertilizer Check Sample Program offers back samples for use in quality control programs. The samples currently available are listed along with the results from testing at the Magruder web site: http://www.magruderchecksample.org/

Please follow this link to place an order. http://www.magruderchecksample.org/SampleRequest.html