BS 3993:1966

This standard BS 3993:1966 Specification for hydrochloric acid, commercial types 1 and 2 is classified in these ICS categories:

• 71.060.30 Acids

This British Standard specifies two types of hydrochloric acid.

Two types differing in levels of impurities. Requirements for residue on evaporation, sulphated residue on ignition, total sulphate, iron, arsenic, lead, copper, mercury, oxidizing and reducing substances; methods of test.