ProTeX - the PT Xperts, LLC
Phoenix,
Arizona
View Accreditation Certificate
Jerald W.
Grossarth
1945 E Watkins Street
Phoenix
,
Arizona
85034
Phone: (602) 272-7891
Fax:
jgrossarth@protex-az.com
http://www.protex-az.com
Quality Management System - accredited since 9/29/2025
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Soil)
Asphalt Mixture - accredited since 9/29/2025
R47, R68, T30, T166, T209, T245, T269, T308, T312, T329, D2041, D2726, D3203, D3549, D5444, D6307, D6925, D6926, D6927
Soil - accredited since 9/29/2025
R58, R74, T88, T89, T90, T99, T134, T180, T265, T288, T289, D421, D422, D558, D698, D1140, D1557, D2216, D4318, D4643, D4718, D4829
Aggregate - accredited since 9/29/2025
R76, T11, T19, T27, T37, T84, T85, T176, T255, T304, C29, C117, C127, C128, C136, C566, C702, C1252, D546, D2419
Concrete - accredited since 9/29/2025
M201, R60, R100 (Cylinders), T22, T119, T121, T152, T231 (7000 psi and below), T309, C31 (Cylinders), C39, C138, C143, C172, C231, C511, C617 (7000 psi and below), C1064, C1231 (7000 psi and below)
Please note that our accreditations do not include an expiration date. An accreditation only expires when the laboratory fails to comply with our accreditation requirements.
* This information is only valid as of 10/27/2026. Please visit https://aashtoresource.org for current accreditation status.
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