Simpson Gumpertz & Heger Inc.
Waltham,
Massachusetts
View Accreditation Certificate
Norman
Perkins
480 Totten Pond Road
Waltham
,
Massachusetts
02451
Phone: (781) 907-9099
Fax: (781) 907-9009
nfperkins@sgh.com
http://www.sgh.com
Quality Management System - accredited since 1/7/2004
R18, C1077 (Concrete), E329 (Concrete)
Aggregate - accredited since 1/7/2004
R76, T11, T19, T21, T84, T85, T255, C29, C40, C117, C127, C128, C566, C702
Concrete - accredited since 1/7/2004
M201, R39, R60, R100 (Cylinders), R115, T22, T24 (Drilling Cores of Concrete), T24 (Testing Drilled Cores of Concrete), T119, T121, T152, T160, T161, T196, T231 (10000 psi and below), T303, T309, C31 (Cylinders), C39, C42 (Drilling Cores of Concrete), C42 (Testing Drilled Cores of Concrete), C138, C143, C157, C172, C173, C192, C215, C231, C305, C457, C469, C511, C617 (10000 psi and below), C642, C666, C1064, C1152, C1218, C1260, C1293, C1542, C1567, C1583
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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