ASTM D6461/D6461M-18

1.1 This specification covers requirements and test methods for geotextile fabrics and associated components used in temporary silt fence applications. Table 1 is a material purchasing specification based on AASHTO M288. Table 2 is a specification to be used in areas of high water flow. The specification on Table 2 is a higher strength, higher flow option than Table 1. Table 2 properties can withstand more hydraulic flow than the specification listed on Table 1. The Table 2 specification should be used in sensitive applications, such as areas near regulated waters and wetlands, but also areas that are prone to high flow runoff that require increased structural stability. The design professional has the option of Table 2 where the specifications listed in Table 1 are not sufficient to meet the demand of runoff.