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 (English Version)
This part of GB/T24328 specifies the method for determining the brightness and color of toilet paper and its products under indoor sunlight conditions. This section applies to toilet paper and its products.
GB/T 24328.11-2020 Referenced Document
GB/T 10739 Standard atmospheric conditions for handling and testing of paper, paperboard and pulp specimens*, 2023-12-28 Update
GB/T 21245-2007 Paper and board.Determination of color (C/2°diffuse reflectance method)
GB/T 450 Paper and board.Sampling for testing and identification of machine and cross direction,wire side and felt side
GB/T 7973 Paper,board and pulps-Measurement of diffuse reflectance factor(Diff/ Geometry)
GB/T 24328.11-2020 history
2020GB/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