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SERVING THE NATION | 903-291-0137

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We provide high-quality analytical testing services to the material industry. GCO Labs, LLC has a large selection of tests available including ASTM and AASHTO methods. Listed below are a few of the material tests we offer.


Call us for more information and ask about our volume discounts. We take special orders too!

Material Testing

  • Patricle size analysis, ASTM D422

  • Water soluble chloride, AASHTO / ASTM

  • Ion Chromatography



material tests

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Office Hours:

Monday - Friday

8:00 AM - 5:00 PM