CORROSIVITY OF THE ENVIRONMENT – A QUICK GUIDE
| Corrosivity in Australia as defined in AS/NZS 2312.2 and described in AS 4312 | |||
| Category | Generic examples | Specific examples | |
| CX | Severe surf shore-line | Surf beach shoreline regions with very high salt deposition. | Some Newcastle beaches |
| C5 | Surf Sea-shore | Within 200 m of rough seas & surf beaches. May be extended inland by prevailing winds & local conditions. | More than 500 m from the coast in some areas of Newcastle |
| C4 | Calm Sea-shore | From 200 m to 1 km inland in areas with rough seas & surf. May be extended inland by prevailing winds & local conditions. | All coasts |
| From the shoreline to 50 m inland around sheltered bays. In the immediate vicinity of calm salt water such as harbour foreshores. | |||
| C3 | Coastal | From 1 km to 10 km inland along ocean front areas with breaking surf & significant salt spray. May be extended inland to 50 km by prevailing winds & local conditions. | Metro areas of Perth, Wollongong, Sydney, Brisbane, Newcastle, & the Gold Coast |
| From 100 m to 3 – 6 km inland for a less sheltered bay or gulf. | Adelaide & environs | ||
| From 50 m to 1 km inland around sheltered bays. | Port Philip Bay & in urban & industrial areas with low pollution levels | ||
| C2 | Arid/Urban Inland | Most areas of Australia at least 50 kilometres from the coast. | Canberra, Ballarat, Toowoomba & Alice Springs |
| Inland 3 – 6 km for a less sheltered bay or gulf. | Adelaide & environs | ||
| Can extend to within 1 km from quiet, sheltered seas. | Suburbs of Brisbane, Melbourne, Hobart | ||
| C1 | Dry indoors | Inside heated or air conditioned buildings with clean atmospheres. | Commercial buildings |
PAINTING
©2020 Galvanizers Association of Australia