The ingots shall have a mass of 5 to 20 kg, shall be of a shape which permits stacking, may include notches which allow them to be broken up if necessary into small pieces and may include cast-on feet. The marking is specified. Designations and chemical compositions of ingots are given in a table.
ISO 301:1981 history
2006ISO 301:2006 Zinc alloy ingots intended for castings
1981ISO 301:1981 Zinc alloy ingots intended for casting