本文件定义了开顶金属罐和金属端的术语并建立了分类（见附录a）。 本文件适用于由厚度不超过0.49？的镀锡或镀铬钢板或铝合金板等金属板制成的食品和饮料的开口金属罐和金属端毫米。

This document defines terms and establishes a classification (see Annex？A) for open-top metal cans and metal ends. This document is applicable to open-top metal cans and metal ends for food and beverages made of metal plates such as tin or chromium-coated steel plates or aluminium alloy plates with a thickness of no more than 0,49？mm.