TBS Testing
1304 Langham Creek Drive, Suite 130, 77084, Houston, TX, United States
Visit website- Accredited standards
- 24
- A2LA certificates
- 2
- 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.
In our data, A2LA certificates 7737.01 and 7737.02 carry the same scope document, so its lines are read once.
Only this lab. Searches the 24 standard numbers and the 0 official names we hold. When no standard matches, it searches the method text of every scope line.
ASTM24
ASTM C31
ASTM C39
ASTM C117
ASTM C127
ASTM C128
ASTM C136
ASTM C138
ASTM C143
ASTM C172
ASTM C231
ASTM C1064
ASTM C1077
Show all 24
ASTM C1231
ASTM D422
ASTM D698
ASTM D854
ASTM D1557
ASTM D2166
ASTM D2216
ASTM D2850
ASTM D3740
ASTM D4318
ASTM D7928
ASTM E329
ASTM C1077; ASTM D3740; ASTM E329; ASTM C117; ASTM C127; ASTM C128; ASTM C136/C136M; ASTM C31M; ASTM C39M; ASTM C138M; ASTM C143M; ASTM C172M; ASTM C231M; ASTM C1064M; ASTM C1231M
ASTM D422; ASTM D698; ASTM D854; ASTM D1557; ASTM D2166M; ASTM D2216; ASTM D2850; ASTM D4318; ASTM D7928
Read from the A2LA scope document we downloaded on 2026-08-05. Register refreshed 2026-10-23.
Scope as published by A2LA
3 lines
ISO/IEC 17025
Active7737.01
The scope document we hold says it is valid until 2028-04-30.
Accredited scope, certificate 7737.01
| Line | Method | Matrix | Range |
|---|---|---|---|
| 1 | ASTM C1077; ASTM D3740; ASTM E329; ASTM C117; ASTM C127; ASTM C128; ASTM C136/C136M; ASTM C31M; ASTM C39M; ASTM C138M; ASTM C143M; ASTM C172M; ASTM C231M; ASTM C1064M; ASTM C1231M | Aggregates; Concrete; Soil; Rock | - |
| 2 | ASTM D422; ASTM D698; ASTM D854; ASTM D1557; ASTM D2166M; ASTM D2216; ASTM D2850; ASTM D4318; ASTM D7928 | Soils | - |
| 3 | ISO/IEC 17025:2017 | - | - |
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.
ISO/IEC 17025
Active7737.02
Same scope document as certificate 7737.01.
The scope document we hold says it is valid until 2028-04-30.
Location
Labs with overlapping accredited scope in United States
- Northwest Geotech, Inc. / Northwest Testing, Inc. an RMA Group CompanyWilsonville, OR · ~2,947 kmA2LAShares 1 accredited test methodASTM C1077
- CMT Technical ServicesStafford, TXA2LAShares 1 accredited test methodASTM C1077
- Columbia West EngineeringVancouver , WAA2LAShares 1 accredited test methodASTM C1077
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.