Standard Testing & Engineering Company
Standard Testing and Engineering Company (Standard Testing) was founded in Oklahoma City in 1951 as a Professional Engineering Firm specializing in Geotechnical and Construction Materials Testing. Standard Testing is an Oklahoma Corporation and is classified as a Veteran-Owned Small Business. Standard Testing employs approximately 40 highly-trained and experienced people, most with college-level and/or specialized technical training at our laboratory facilities in Oklahoma City, Enid, and Lawton. Our Core staff members have significant personal and professional history in the State of Oklahoma and have developed working relationships with local, state, and federal agencies, local design engineers, and other members of the local construction industry.
For more Information on Standard Testing's Internship Program, please contact:
Alan Soltani via email at firstname.lastname@example.org or phone (405) 528-0541
2019 Summer Interns
In the lab, we performed a multitude of tests with accordance to ASTM standards or other applicable standards. We usually have two types of materials which are soils and aggregates. Soils are typically sand and fine aggregates like silt and clay. Aggregates are usually rocks or gravel with large amount of sample. The two materials have different tests and procedures; however, there are three tests that will be run for almost all samples/materials. The three tests are PIs, Gradation, and Proctors.
PI (Plasticity Index): Procedure to understand a soil’s plastic limit and liquid limit. Plastic limit is the point of moisture when the soil starts behaving like a plastic. Liquid limit is the point before the soil behaves like a liquid. For more information, reference to ASTM D4318.
Gradations (Sieve Analysis): A procedure used to classify the sample. Classifications include clay, sand, gravel, and silt. However, it is important to note that are other classifications like lean clay, silty clay, and gravely sand. For more information, reference to ASTM D6913.
Proctors: A test to understand the soil’s maximum density and optimum densities. The densities will tell the client if the soil is at the right moisture level for the job. There are different methods and types. One of the most common is ASTM D698.
TRANSPORTATION INDUSTRY: Standard Testing used the interns on projects with the Oklahoma Turnpike Authority (OTA), for bridge replacement projects on the JKT and the new alignments on the EOC east of OKC.
Standard also used the interns to run proctors and PI’s for an ODOT project SH-48 over Cimarron River in Creek County.