Quality Testing, L.L.C.
Prescott Valley,
Arizona
View Accreditation Certificate
Jeffery
Schaper
9144 Florentine Road
Unit 2
Prescott Valley
,
Arizona
86314
Phone: (480) 496-2000
Fax:
jschaper@qt-az.com
http://qt-arizona.com
Quality Management System - accredited since 7/30/2025
R18, C1077 (Aggregate), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Soil)
Asphalt Mixture - accredited since 7/30/2025
R47, R68, R97, T30, T166, T209, T245, T269, T275, T308, T312, T329, T355, D979, D1188, D2041, D2726, D2950, D3203, D3549, D5444, D6307, D6925, D6926, D6927
Soil - accredited since 7/30/2025
R58, R74, T89, T90, T99, T180, T191, T217, T265, T288, T289, T310, T311, D421, D698, D1140, D1556, D1557, D2216, D4318, D4718, D4944, D6938
Aggregate - accredited since 7/30/2025
R76, R90, T11, T19, T27, T84, T85, T112, T176, T255, T304, T335, C29, C117, C127, C128, C136, C142, C566, C702, C1252, D75, D2419, D4791, D5821
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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