scope:

This Direction applies to the site tests on joints made by welding, adhesive bonding or vulcanizing for waterproofing systems with lining membranes of polymer materials in geotechnical and hydraulic engineering, for waste dump seals and other groundwater protection measures. This Direction is intended to serve as a guide to the responsible Authorities, employers, contractors and inspectors for the site tests to be carried out. This Direction should ensure that the join seams are properly tested on site. Part 1 of this Direction deals with the joining methods welding, adhesive bonding and vulcanizing.