IWA 8:2009

Tableware, giftware, jewellery, luminaries -- Glass clarity -- Classification and test method

IWA 8:2009 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. IWA 8:2009 specifies a procedure for measuring the clarity of glass items by means of a spectrophotometer.

IWA 8:2009 is applicable to

  • mineral glasses, and
  • glass items where a part is not covered by coating or decoration, and is therefore available for sampling.

IWA 8:2009 is applicable to the use of glass as tableware, giftware, jewellery and luminaries.

IWA 8:2009 is not applicable to the use of glass in the context of building, containers, medicine and laboratories, and to other technical uses of glass.


General information

  • Current status : Withdrawn
    Publication date : 2009-12
    Corrected version : 2010-04-15
  • Edition : 1
  • :
    ISO/TMBG
    Technical Management Board - groups
  • 81.040.01
    Glass in general

Got a question?

Check out our FAQs


Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)