New national standard for polyethylene geomembrane
GB / T-1998 Geosynthetics Polyethylene Geomembrane GBT-1998 Geosynthetics Polyethylene Geomembrane This standard specifies the classification and naming of polyethylene geomembranes, technical requirements, test methods, inspection rules, marking, packaging, transportation and Storage. This standard applies to polyethylene resin, ethylene copolymer as raw materials to add all kinds of additives produced by the polyethylene geomembrane.
Polyethylene geomembrane new national standard is GB / T-2011. The new standard is released on the date of 2011-12-30. The new standard implementation date is 2012-09-01. The new standard increases the single rough surface geomembrane and double rough Surface geomembrane, the abolition of the EVA geomembrane.
GB / T-HDPE geomembrane is a flexible waterproof material, with a high permeability coefficient (1 × 10-17cm / s); 2, HDPE geomembrane has good heat resistance and cold resistance, the use of the environment The temperature is high temperature 110 ℃, low temperature -70 ℃; 3, HDPE geomembrane has good chemical stability, can resist strong acid, alkali, oil corrosion is good anti-corrosion materials;
