Asperity Measurement of Textured Geomembranes Using a Depth Gage **GRI has discontinued this method, the industry-accepted standard test method is now ASTM D7466
Standard Test Method for Determination of Carbon Black Content in Polyethylene Compounds By the Muffle-Furnace Technique
Standard Test Method for Linear Dimensional Changes of Non-rigid Thermoplastic Sheeting or Film at Elevated Temperature
