This Standard specifies the minimum requirements for safety, welding consumables, weld preparations, welding processes, qualifications of welding procedures and personnel, and fabrication and inspection requirements for the construction and maintenance welding of carbon and carbon-manganese steel pipelines down to 3.2mm wall thickness designed and constructed in accordance with AS2885.1. The welding of corrosion resistant alloy steel pipelines, or pipelines with nominal thicknesses less than 3.2mm, is not precluded, but is not expressly covered by this Standard. The welding of such pipelines has to be given special consideration.