CIE 15 OCULAR LIGHTING EFFECTS ON HUMAN PHYSIOLOGY AND BEHAVIOUR (Including Erratum 1: 01/21/2009)
CIE 38 Radiometric and Photometric Characteristics of Materials and Their Measurement (E) (F) (G)
BS EN ISO 8654:2018 history
2020BS EN ISO 8654:2018+A1:2019 Jewellery. Colours of gold alloys. Definition, range of colours and designation
2018BS EN ISO 8654:2018 Jewellery. Colours of gold alloys. Definition, range of colours and designation
1993BS EN 28654:1993 Colours of gold alloys. Definition, range of colours and designation
0000 BS 7031:1988
BS EN ISO 8654:2018 Jewellery. Colours of gold alloys. Definition, range of colours and designation has been changed from BS EN 28654:1993 Colours of gold alloys. Definition, range of colours and designation.