CAN/CGSB-9.0 No./No.6-1993

Methods of Testing Pulp and Paper Opacity of Paper


 

 

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标准号
CAN/CGSB-9.0 No./No.6-1993
发布
1993年
发布单位
SCC
当前最新
CAN/CGSB-9.0 No./No.6-1993
 
 
代替标准
85.060
被代替标准
CONTRAST (OPTICAL), MATHEMATICAL CALCULATIONS, OPACITY, OPTICAL PROPERTIES OFMATERIALS, PAPER, TEST SPECIMENS, TESTING
适用范围
This method is intended to measure "Opacity - paper backing", formerly known as "Printing Opacity", and "Opacity - white backing", formerly known as "Contrast Ratio". It may be used for coloured paper provided that the reflectance (paper backing) is greater than 20% and simultaneously the opacity (paper backing) is greater than 45%. It is not intended for highly transparent papers such as glassine.

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