1.1 This guide provides recommendations for the selection of appropriate test methods for prefabricated bituminous sheet used in geomembrane applications to provide consistency in data reporting.

1.2 This guide includes test methods for all types of composite bituminous geomembranes fabricated in a plant and consisting of a synthetic fabric saturated by a modified bituminous or an oxidized bituminous blend.

1.3 This guide is intended to aid all personnel involved in the selection, manufacture, installation, or evaluation of prefabricated bituminous geomembranes.