WOR – weather and oil resistant plate, WOR working: atmospheric air, premises, tanks, vessels; nitrogen; inert gases at a pressure of 0.05 to 0.4 MPa or petroleum-based oils under a pressure of 0.05 to 10.0 MPa. The plate has hardness: 35-65 units. Shore – soft (M), 50-65 units. Shore – average (C), 65-85 units. Shore – elevated (T). TU U22.1-4211243-001: 2020.
