Westwood Professional Services, Inc.
Appleton,
Wisconsin
View Accreditation Certificate
Nicholas
Thyssen
One Systems Drive
Appleton
,
Wisconsin
54914-1654
Phone: (920) 735-6900
Fax:
nick.thyssen@westwoodps.com
http://www.westwoodps.com
Quality Management System - accredited since 5/1/1998
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3666 (Asphalt Mixture)
Asphalt Mixture - accredited since 11/18/2003
R30, R47, R97, T166, T209, T269, T312, D979, D2041, D2726, D3203, D3665, D6925
Aggregate - accredited since 5/1/1998
R76, R90, T11, T19, T21, T27, T84, T85, T96, T103, T104, T255, T335, C29, C40, C88, C117, C127, C128, C131, C136, C535, C566, C702, D75, D5821
Concrete - accredited since 5/1/1998
M201, R39, R60, R100 (Beams), R100 (Cylinders), T22, T24 (Drilling Cores of Concrete), T24 (Testing Drilled Cores of Concrete), T97, T119, T121, T148, T152, T196, T231 (6000 psi and below), T309, C31 (Beams), C31 (Cylinders), C39, C42 (Drilling Cores of Concrete), C42 (Testing Drilled Cores of Concrete), C78, C138, C143, C172, C173, C174, C192, C231, C511, C617 (6000 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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