Pattison Engineering, LLC
Tucson,
Arizona
View Accreditation Certificate
Guillermo
Marquez
2660 E. Ganley Road
Tucson
,
Arizona
85706
Phone: (520) 881-1234
Fax: (520) 881-4919
gmarquez@pattisonengineering.com
http://pattisonengineering.com
26-5795 : Accreditation has been suspended for Aggregate standard(s) T84, C128
26-5795 : Accreditation has been suspended for Quality Management System standard(s) C1077 (Aggregate)
Quality Management System - accredited since 3/17/2017
R18, C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (Soil), E329 (Sprayed Fire-Resistive Material)
Asphalt Mixture - accredited since 10/18/2019
R47, R68, R97, T30, T166, T209, T245, T269, T308, T329, T355, D979, D2041, D2726, D2950, D3203, D3549, D5444, D6307, D6926, D6927
Soil - accredited since 3/17/2017
R58, T89, T90, T99, T134, T180, T191, T217, T265, T288, T289, T310, D421, D558, D698, D1140, D1556, D1557, D1633, D2216, D2487, D2488, D4318, D4643, D4718, D4944, D6938, G57
Aggregate - accredited since 3/17/2017
R76, R90, T11, T19, T21, T27, T85, T96, T112, T176, T255, T304, T335, C29, C40, C117, C127, C131, C136, C142, C535, C566, C702, C1252, D75, D2419, D5821
Sprayed Fire-Resistive Material - accredited since 8/9/2023
E605, E736
Concrete - accredited since 2/11/2020
M201, R60, R100 (Beams), R100 (Cylinders), T22, T24 (Testing Drilled Cores of Concrete), T97, T119, T121, T152, T196, T231 (7000 psi and below), T309, C31 (Beams), C31 (Cylinders), C39, C42 (Testing Drilled Cores of Concrete), C78, C138, C143, C172, C173, C231, C511, C617 (7000 psi and below), C1064, C1140 (Obtaining and Testing Specimens), C1231 (7000 psi and below), C1542
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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