7NT Engineering, LLC
Miamisburg,
Ohio
View Accreditation Certificate
Craig
Brown
3090 South Tech Blvd.
Miamisburg
,
Ohio
45342
Phone: (937) 725-0489
Fax:
craig.brown@7nteng.com
http://https://www.7nteng.com/
Quality Management System - accredited since 3/1/2000
R18, C1077 (Aggregate), C1077 (Concrete), D3666 (Aggregate), D3740 (Soil), E329 (Aggregate), E329 (Soil)
Soil - accredited since 3/1/2000
R58, T88, T89, T90, T99, T100, T134, T180, T191, T193, T208, T216, T236, T265, T267, T288, T289, T296, T297, T310, T311, D421, D422, D558, D698, D854, D1140, D1556, D1557, D1883, D2166, D2216, D2435, D2487, D2488, D2850, D2974, D3080 (2000 lb/ft-sq or Greater Normal Stress), D4318, D4718, D4767, D4972, D5084, D6913, D6938, D7928
Rock - accredited since 8/8/2011
D3967, D4543, D4644, D5731, D7012 (Method C)
Aggregate - accredited since 3/1/2000
R76, T11, T27, T84, T85, T96, C117, C127, C128, C131, C136, C535, C702, D4791
Concrete - accredited since 3/1/2000
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, T198, T231 (5000 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, C495, C496, C511, C617 (5000 psi and below), C1064, C1140 (Obtaining and Testing Specimens), C1231 (7000 psi and below), C1542, C1604
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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