Simpson Gumpertz & Heger
480 Totten Pond Road, 02451, Waltham, MA, United States
Visit website- Accredited standards
- 14
- A2LA certificate
- 1
- Site in our directory
- 1
What this lab is accredited for
Our reading of the A2LA scope: each standard once, with its official name where we have checked it.
Only this lab. Searches the 14 standard numbers and the 0 official names we hold. When no standard matches, it searches the method text of every scope line.
ASTM14
ASTM C39
ASTM C42
ASTM C138
ASTM C143
ASTM C192
ASTM C231
ASTM C469
ASTM C566
ASTM C856
ASTM C1064
ASTM C1152
ASTM C1218
ASTM D3039
ASTM E2160
ASTM C39/C39M-24; ASTM C42/C42M-20; ASTM C138/C138M-24a; ASTM C143/C143M-20; ASTM C192/C192M-25; ASTM C231/C231M-24; ASTM C469/C469M-22; ASTM C566-19; ASTM C856/C856M-25; ASTM C1064/C1064M-23; ASTM C1152/C1152M-20; ASTM C1218/C1218M-20; ASTM D3039/D3039M-17; ASTM E2160-23
Read from the A2LA scope document we downloaded on 2026-03-14. Register refreshed 2026-11-06.
Scope as published by A2LA
2 lines
ISO/IEC 17025
Active6551.01
The scope document we hold says it is valid until 2028-02-29.
Accredited scope, certificate 6551.01
| Line | Method | Matrix | Range |
|---|---|---|---|
| 1 | ASTM C39/C39M-24; ASTM C42/C42M-20; ASTM C138/C138M-24a; ASTM C143/C143M-20; ASTM C192/C192M-25; ASTM C231/C231M-24; ASTM C469/C469M-22; ASTM C566-19; ASTM C856/C856M-25; ASTM C1064/C1064M-23; ASTM C1152/C1152M-20; ASTM C1218/C1218M-20; ASTM D3039/D3039M-17; ASTM E2160-23 | Concrete | - |
| 2 | Extracted from the scope document; tables may not line up. View scope for the original. For the tests to which this accreditation applies, please refer to the laboratory’s Construction Materials Scope of Accreditation.
Accredited Laboratory
A2LA has accredited
SIMPSON GUMPERTZ & HEGER, INC.
Waltham, MA
for technical competence in the field of
Construction Materials Testing
This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017
General requirements for the competence of testing and calibration laboratories. This accreditation demonstrates
technical competence for a defined scope and the operation of a laboratory quality management system
(refer to joint ISO-ILAC-IAF Communiqué dated April 2017).
Presented this 25th day of February 2026.
_______________________
Mr. Trace McInturff, Vice President, Accreditation Services
For the Accreditation Council
Certificate Number 6551.01
Valid to February 29, 2028 | ||
Ranges are reproduced from the accredited scope document as published, and only where we found that range printed in the document for the line. Otherwise the cell reads “See scope document”. An absent range means the register did not state one. Line numbers are ours, for cross-reference; they follow the order of the scope document.
Location
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Accreditation data refreshed from the A2LA register on .
This page mirrors a public register. For a purchasing, audit or regulatory decision, confirm against the A2LA entry linked above.