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DIN EN 1371-1:2012
Founding - Liquid penetrant testing - Part 1: Sand, gravity die and low pressure die castings; German version EN 1371-1:2011
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. It applies to all cast metals, except copper-tin and/or copper-tin-lead alloy castings, where copper is the major constituent.
Deutsches Institut für Normung [din]