Historical
DIN EN 1371-1:1997
Founding - Liquid penetrant inspection - Part 1: Sand, gravity die and low pressure die castings (Foreign Standard)
The document applies to the liquid penetrant testing of all castings (except copper-tin and/or copper-tin-lead alloy castings, where copper is the major constituent) produced in conventional sand moulds, by gravity and low-pressure die casting whatever their grade and the casting procedure used to produce them. It does not apply to investment and pressure die castings.
Deutsches Institut für Normung [din]