第1节涵盖了4类玻璃，在技术上与欧洲经济共同体关于水晶玻璃的指令相同，旨在在英国实施该指令的法定文书中参考。第2节包含了EEC指令中关于两种以上玻璃类别的附加要求，实际上保持了英国制造的玻璃的优良质量，符合之前版本的要求。交叉引用:BS 427:第1BS 2649部分:第3ISO/R 81ISO/R 192ASTM E 92ASTM E 38469/493/EEC

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