This standard BS EN 1371-1:2011 Founding. Liquid penetrant testing is classified in these ICS categories:
19.100 Non-destructive testing
77.040.20 Non-destructive testing of metals
77.150.99 Other products of non-ferrous metals
77.140.80 Iron and steel castings
This European Standard specifies a liquid penetrant testing method for castings produced in conventional sand moulds, by gravity and low-pressure die casting, except for investment castings and high-pressure die castings. This European Standard applies to all cast metals, except copper-tin and/or copper-tin-lead alloy castings, where copper is the major constituent.