This standard specifies the black acid content of cast iron and steel, including iron, ductile iron, carbon steel, low-alloy steel, and stainless steel.
KS D ISO 11408:2001 history
2013KS D ISO 11408:2013 Chemical conversion coatings-Black oxide coating on iron and steel-Specification and test methods
0000 KS D ISO 11408-2001(2011)
2001KS D ISO 11408:2001 Chemical conversion coatings-Black oxide coating on iron and steel-Specification and test methods