This standard specifies the method for measuring the specular gloss of paper and cardboard with 20°, 45°, and 75° gloss meters. The 20° gloss measurement method is mainly suitable for high-gloss paper and paperboard such as cast-coated paper and glossy paper, and is also suitable for printing samples of high-gloss printing paper and paperboard. Not suitable for lower gloss coated or uncoated paper and board. The 45° gloss measurement method is mainly suitable for the determination of metal composite paper and cardboard such as aluminum foil paper and vacuum aluminized paper. The 75° gloss measurement method is mainly suitable for coated paper and cardboard, and can also be used for uncoated paper and cardboard or paper and cardboard printing samples with low printing gloss. has little effect.
GB/T 8941-2007 history
2013GB/T 8941-2013 Paper and board.Measurement of specular gloss
2007GB/T 8941-2007 Paper and board.Measurement of specular gloss (20° 45° 75°)
1988GB/T 8941.1-1988 Paper and board--Measurement of specular gloss (20°)