Member Spotlight:

Seaman Corporation traces its origins to a basement workshop in Canal Fulton, Ohio that was equipped with two sewing machines and fueled by Norm Seaman's dedication to create fabrics that could set a new world standard for versatility and performance. Today, Seaman Corporation has turned that dream into a reality with modern corporate headquarters, product development laboratories and a primary manufacturing facility in Wooster, Ohio. In addition, the company also has a state-of-the-art weaving and coating facility in Bristol, Tennessee. Each discipline within the company is committed to maintaining the founding principles, setting the highest standards for quality, innovation and customer service. Seaman Corporation fabrics are used in high performance roof systems, geomembrane liners, truck tarps, architectural structures and recreational products. For more information on Seaman Corporation, please visit their website at or contact Bill Shehane at


ASTM Test Methods

ASTM Specifications

D4437 – Non-destructive Testing of Seams Used in for Flexible Polymeric Sheet Geomembranes

D4885 – Determining Performance Strength of Geomembranes by the Wide Strip Tensile Method

D5494 – Determination of Pyramid Puncture Resistance of Unprotected and Protected Geomembranes

D5514 – Large Scale Hydrostatic Puncture Testing of Geosynthetics

D5617 – Multi-Axial Tension Test for Geosynthetics

D5641 – Geomembrane Seam Evaluation by Vacuum Chamber

D5884 – Determining Tearing Strength of Internally Reinforced Geomembranes

D5886 – Selection of Test Methods to Determine Rate of Fluid Permeation Through Geomembranes for Specific Applications

D6214 – Determining the Integrity of Field Seams Used in Joining Geomembranes by Chemical Fusion Methods

D6365 – Nondestructive Testing of Geomembrane Seams using the Spark Test

D6392 – Determining the Integrity of Nonreinforced Geomembrane Seams Produced Using Thermo-Fusion Methods

D6434 – Selection of Test Methods for Flexible Polypropylene (fPP) Geomembranes

D6497 – Mechanical Attachment of Geomembrane to Penetrations or Structures

D6636 – Determination of Ply Adhesion Strength of Reinforced Geomembranes

D6693 – Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes

D6747 – Selection of Techniques for Electrical Detection of Potential Leak Paths in Geomembrane

D7002 – Leak Location on Exposed Geomembranes Using the Water Puddle System

D7003 – Strip Tensile Properties of Reinforced Geomembranes

D7004 – Grab Tensile Properties of Reinforced Geomembranes

D7007 – Electrical Methods for Locating Leaks in Geomembranes Covered with Water or Earth Materials

D7106 – Selection of Test Methods for Ethylene Propylene Diene Terpolymer (EPDM) Geomembranes

D7176 – Non-Reinforced Polyvinyl Chloride (PVC) Geomembranes Used in Buried Applications

D7177 – Air Channel Evaluation of Polyvinyl Chloride (PVC) Dual Track Seamed Geomembranes

D7272 – Determining the Integrity of Seams Used in Joining Geomembranes by Pre-manufactured Taped Methods

D7407 – Determining The Transmission of Gases Through Geomembranes

D7408 – Non Reinforced PVC (Polyvinyl Chloride) Geomembrane Seams

D7465 – Ethylene Propylene Diene Terpolymer (EPDM) Sheet Used In Geomembrane Applications

D7613 – Flexible Polypropylene Reinforced (fPP-R) and Nonreinforced (fPP) Geomembranes

ASTM D4885 – 01(2006) Standard Test Method for Determining Performance Strength of Geomembranes by the Wide Strip Tensile Method