The national standards of geomembrane is GB / T17642-2008. Geomembrane 1. longitudinal and transverse breaking strength. 2. Vertical and horizontal elongation corresponding to the standard strength. 3. CBR bursting strength 4. 5 vertical and horizontal tearing strength. 5, hydrostatic pressure resistance. 6. peel strength. 7. vertical penetration index. 8, width deviation, the above technical requirements that confirm to the national standard are national standard geomembrane.
