This standard specifies a method for measuring the specular gloss of paper and paperboard at an angle of 75° to the normal to the paper surface. This standard applies primarily to coated papers, but can also be applied to glossy, uncoated papers such as supercalendered papers.
JIS P 8142:2005 history
2005JIS P 8142:2005 Paper and board -- Measurement of 75 degree specular gloss -- Converging beam method
1993JIS P 8142:1993 Testing method for 75 degrees specular glossiness of paper and board