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Gorman Technical Laboratories

The primary focus of GTL is testing and certification of construction materials particularly those used in building roads and weather resistant envelopes for structures such as roofs, exterior walls and foundation coatings and coverings.  A secondary focus is on the cooperative development of products or methods of production for clients who want assistance in research and development activities.  

GTL is staffed with considerable technical talent that has experience related to both testing and R&D activities and is accredited through American Association of Laboratory Accreditation (A2LA).

Gorman Technical Laboratories (GTL) is a ISO/IEC 17025 accredited testing laboratory located in Rensselaer, NY.

A2LA accredited in the following services:

ASTM D7173

Standard Practice for Determining the Separation Tendency of Polymer from Polymer-Modified Asphalt

ASTM D6084/D6084M

Standard Method for Elastic Recovery of Asphalt Materials by Ductilometer

ASTM D823

Standard Practices for Producing Films of Uniform Thickness of Paint, Coatings and Related Products on Test Panels Practice E

ASTM D113

Standard Method for Ductility of Asphalt Materials

ASTM D5167

Practice for Melting of Hot-Applied Joint and Crack Sealant and Filler for Evaluation

ASTM G155

Standard Practice for Operating Xenon Arc Lamp Apparatus for Exposure of Materials

ASTM G151

Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources

ASTM D5/D5M

Test Method for Penetration of Bituminous Materials

ASTM D5329

Standard Test Methods for Sealants and Fillers, Hot-Applied, for Joints and Cracks in Asphalt Pavements and Portland Cement Concrete Pavements

ASTM D36/D36M

Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)

ASTM D6690

Standard Specification for Joint and Crack Sealants, Hot Applied, for Concrete and Asphalt Pavements

ASTM D1076

Standard Specification for Rubber-Concentrated, Ammonia, Preserved, Creamed, and Centrifuged Natural Latex, (Except Sections 10, 19-31 & 37)

ASTM G154

Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials

ASTM D7897

Laboratory Soiling and Weathering of Roofing Materials to Simulate Effects of Natural Exposure on Solar Reflectance and Thermal Emittance

ASTM E1980

Calculating Solar Reflectance Index of Horizontal and Low-Sloped Opaque Surfaces

ASTM E805

Identification of Instrumental Methods of Color or Color-Difference Measurement of Materials, Section 9

ASTM D751

Standard Test Methods for Coated Fabrics, Section 9

ASTM C1371

Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers

ASTM C1549

Standard Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer

ASTM D1005

Standard Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers, Producer A section 6.1

AASHTO Accredited Asphalt Binder Testing

Accreditation Certificate

ASTM D7643

Determining the Continuous Grading Temperatures and Continuous Grades for PG Graded Asphalt Binders

ASTM D7405

Multiple Stress Creep and Recovery (MSCR) at 64C, 25mm plate, 1mm gap

ASTM D7175

Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)

ASTM D6648

Determining the Flexural Creep Stiffness of Asphalt Binder Using the Bending Beam Rheometer (BBR)

ASTM D6521

Accelerated Aging of Asphalt Binder Using a Pressurized Aging Vessel

ASTM D4402

Standard Test Method for Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer

ASTM D2872

Rolling Thin-Film Oven Testing

ASTM D92

Flash Point by Cleveland Open Cup

ASTM D70

Specific Gravity (Relative Density) of Asphalt Cement

AASHTO T350

Multiple Stress Creep and Recovery (MSCR) at 64C, 25mm plate, 1mm gap

AASHTO T316

Viscosity Determination of Asphalt Binder Using Rotational Viscometer

AASHTO T315

Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)

AASHTO T31

Determining the Flexural Creep Stiffness of Asphalt Binder Using the Bending Beam Rheometer (BBR)

AASHTO T240

Rolling Thin-Film Oven Testing

AASHTO T228

Specific Gravity (Relative Density) of Asphalt Cement

AASHTO T48

Flash point by Cleveland Open Cup

ASSHTO R29

Grading or Verifying the Performance Grade of an Asphalt Binder

ASSHTO R28

Accelerated Aging of Asphalt Binder Using a Pressurized Aging Vessel

Let’s Connect

Looking for other work not requiring accredited services? Contact us today to talk about your project or send a general question about GTL and we'll get back to you shortly!

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Gorman Technical Laboratories
289 Riverside Avenue,
Rensselaer, NY 12144
Email: [email protected]
Telephone: 518-415-1560

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