BS EN ISO 8254-1-2009 纸和纸板.镜面光泽度的测定.用TAPPI方法,会聚光束75°角测定光泽度

标准号：BS EN ISO 8254-1-2009
中文标准名称：纸和纸板.镜面光泽度的测定.用TAPPI方法,会聚光束75°角测定光泽度
英文标准名称：Paper and board - Measurement of specular gloss - 75 degree gloss with a converging beam, TAPPI method
标准类型：Y30
发布日期：2009/4/30 12:00:00
实施日期：2009/4/30 12:00:00
中国标准分类号：Y30
国际标准分类号：85.060
引用标准：ISO 186;ISO 187
适用范围：This part of ISO 8254 specifies a method for measuring the specular gloss of paper at an angle of 75° to thenormal to the paper surface. Although its chief application is to coated papers, it may also be used for glossyuncoated papers such as supercalendered papers.NOTE 1 This method does not provide an assessment of image-reflecting quality and should not be used for castcoated,lacquered, highly varnished or waxed papers or for high-gloss ink films. For these purposes, measurements atother angles, for example 20°, are preferred, although the present method has been shown to be suitable for glossmeasurements of most other ink films on paper or paperboard. Differences in the colour and the diffuse reflectances ofthese ink films have a negligible effect on gloss measured according to this part of ISO 8254. For example, measurementson white and black surfaces which are otherwise identical give a value for the white surface that is less than one gloss unithigher than the value for the black surface.NOTE 2 The methods specified in ISO 2813, Paints and varnishes — Determination of specular gloss of non-metallicpaint films at 20°, 60° and 85°, may be applicable to certain grades of paper.