Section 1 covers 4 categories of glass, is technically identical with the EEC Directive on crystal glass and is intended for reference in the statutory instrument which will implement this Directive in the UK. Section 2 incorporates certain requirements additional to those in the EEC Directive for the two higher categories of glass, and in effect maintains the superior qualities of glasses of UK manufacture complying with the previous edition. Cross References:BS 427:Part 1BS 2649:Part 3ISO/R 81ISO/R 192ASTM E 92ASTM E 38469/493/EEC