本文件根据玻璃的透明度和铁含量，规定了非彩色玻璃项目使用玻璃名称“透明玻璃”和“超透明玻璃”的要求。它规定了通过分光光度计测量玻璃制品透明度的程序。 本文件适用于 -矿物玻璃，以及 -零件未被涂层或装饰覆盖的玻璃制品，因此可用于取样。 本文件适用于玻璃作为餐具、礼品、珠宝和灯具的使用。 它不适用于在建筑、手表、容器、药品和实验室中使用玻璃，以及玻璃的其他技术用途。

This document establishes requirements for the use of the glass designations "clear glass" and "ultra-clear glass" for non-coloured glass items according to their clarity and iron content. It specifies a procedure for measuring the clarity of glass items by means of a spectrophotometer. This document is applicable to — mineral glasses, and — glass items where a part is not covered by coating or decoration, and is therefore available for sampling. This document is applicable to the use of glass as tableware, giftware, jewellery and luminaries. It is not applicable to the use of glass in the context of building, watches, containers, medicine and laboratories, and to other technical uses of glass.