2021ISO 12625-7:2021 Tissue paper and tissue products — Part 7: Determination of optical properties — Measurement of brightness and colour with D65/10° (outdoor daylight)
2014ISO 12625-7:2014 Tissue paper and tissue products - Part 7: Determination of optical properties - Measurement of brightness and colour with D65/10° (outdoor daylight)
2007ISO 12625-7:2007 Tissue paper and tissue products - Part 7: Determination of optical properties