GB/T 24328.12-2020 Tissue paper and tissue products—Part 12:Determination of optical properties—Determination of opacity—Diffuse reflectance method

GB/T 24328.1-2020 Tissue paper and tissue products—Part 1:General guidance on terms GB/T 24328.2-2020 Tissue paper and tissue products—Part 2:Determination of thickness,bulking thickness and apparent bulk density and bulk GB/T 24328.3-2020 Tissue paper and tissue products—Part 3:Determination oftensile strength, stretch at maximum force and tensile energy absorption GB/T 24328.4-2020 Tissue paper and tissue products—Part 4:Determination of wet tensile strength GB/T 24328.6-2020 Tissue paper and tissue products—Part 6:Determination of water-absorption time and water-absorption capacity—Basket-immersion test method GB/T 24328.7-2020 Tissue paper and tissue products—Part 7:Determination of ball burst strength GB/T 24328.8-2020 Tissue paper and tissue products—Part 8:Determination of optical properties—Measurement of brightness and colour—D65/10°(outdoor daylight conditions) GB/T 24328.9-2020 Tissue paper and tissue products—Part 9:Determination of wet ball burst strength GB/T 24328.10-2020 Tissue paper and tissue products—Part 10:Determination of tensile strength of perforated lines and calculation of perforation efficiency GB/T 24328.11-2020 Tissue paper and tissue products—Part 11:Determination of optical properties—Measurement of brightness and colour—C/2°(indoor daylight) illuminant

GB/T 1543-2005 Paper and board—Determination of opacity (paper backing)—Diffuse reflectance method GB/T 450-2002 Paper and board—Sampling for testing GB/T 450-2008 Paper and board—Sampling for testing and identification of machine and cross direction,wire side and felt side GB/T 7973-2003 Paper, Board and Pulps-Measurement of diffuse reflectance factor(Diff/ Geometry) GB/T 10739-2002 Paper, board and pulps—Standard atmosphere for conditioning and testing GB/T 10739-2023 Paper,board and pulps—Standard atmosphere for conditioning and testing

ISO 12625-16:2015