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Tulsa, Oklahoma

View Accreditation Certificate
Craig Good
6502 South Yale Avenue Tulsa , Oklahoma 74136-8368

Phone: (918) 960-3877 Fax:

24-0939 : Accreditation has been suspended for Asphalt Binder standard(s) T315, D7175
Quality Management System - accredited since 5/15/2001

Asphalt Binder - accredited since 5/15/2001
R28, R29, T48, T49, T51, T53, T78, T228, T240, T301, T313, T316, T350, D5, D36, D70, D92, D113, D402, D2872, D4402, D6084, D6521, D6648, D7405, D8078

Emulsified Asphalt - accredited since 5/15/2001
T59 / D6930 (Settlement and Storage Stability)
T59 / D6933 (Sieve Test)
T59 / D6934 (Residue by Evaporation)
T59 / D6935 (Cement Mixing)
T59 / D6936 (Demulsibility)
T59 / D6937 (Density)
T59 / D6997 (Residue by Distillation)
T59 / D6998 (Aggregate Coating)
T59 / D7402 (Particle Charge)
T59 / D7496 (Saybolt Viscosity at 25°C (77°F))
T59 / D7496 (Saybolt Viscosity at 50°C (122°F))

Pavement Preservation - accredited since 5/15/2001
TB-106 / D3910 (Measurement of Slurry Seal Consistency (Cone Consistency))
TB-144 / D6372 (Classification of Micro-Surfacing Materials Compatibility (SBR))
TB-147 / D6372 (Loaded Wheel Test, Vertical and Lateral Displacement of Cold Mixes (LWT))
TB-139 / D3910/D6372 (Set and Cure Development of Slurry Surfacing Systems by Cohesion Tester)
TB-100 / D3910/D6372 (Wet Track Abrasion Of Slurry Surfacing Systems)
TB-109 (Excess Asphalt in Bituminous Mixtures by Loaded Wheel and Sand Adhesion)
TB-113 (Determining Mix Time for Slurry Surfacing Systems)
TB-114 (Wet Stripping of Cured Slurry Surfacing Mixtures)
D7000 (Sweep Test of Bituminous Emulsion Surface Treatment)
D3910/D6372 (Determining Set Time for Slurry Seal and Micro-Surfacing Systems (Blot Test))

Asphalt Mixture - accredited since 9/1/2001
R30, R68, T30, T166, T209, T245, T269, T283, T308, T312, T324, T331, T340, D2041, D2726, D3203, D3549, D4867, D5444, D6307, D6752, D6925, D6926, D6927, D6931, D7906

Aggregate - accredited since 8/1/2001
T11, T27, T176, C117, C136, D2419

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 2/29/2024. Please visit for current accreditation status.