Standard No.:	GB/T 7975-2005
English Name:	Paper and board-Determination of color(diffuse reflectance method)
Chinese Name:	纸和纸板 颜色的测定(漫反射法)
Chinese Classification:	Y30    Papermaking in general
Professional Classification:	GB    National Standard
Issued by:	AQSIQ
Issued on:	2005-09-26
Implemented on:	2006-4-1
Status:	valid
Superseding:	GB/T 7975-1987
Language:	English
File Format:	PDF
Word Count:	3500 words
Price(USD):	100.00
Delivery:	via email in 1~3 business day

本标准规定了用消除光泽的漫反射法测定纸和纸板颜色的方法。 本标准不适用于加入荧光染料或颜料的纸和纸板。当仪器光源照射在试样上的紫外辐射量调准至与GB/T 7973规定的授权实验室提供的在CIE照明体D65光源条件下的荧光参比标准一致时，本标准可用于测定含有荧光增白剂的纸和纸板。