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.Cross References:CIE 15ASTM E1172-16ASTM E1621-13ASTM E1361-02 (2014)ISO 11664-2ISO/CIE 11664-1ISO/CIE 11664-4All current amendments available at time of purchase are included with the purchase of this document.