Flexible sewers: Evaluation of methods and equipment for field measurements of deformation (NT VVS 049) Posted onNovember 21, 1985September 21, 2020Author Report #: NT VVS 049 Approved: November 1985 Download pdf Size: 16.36 MB Abstract The method is designed to test the qualities and accuracy of methods and equipments used for field measurements of deformations of flexible sewers. Categories