
Methods of test for pulp and paper Determination of opacity (paper backing) - Diffuse reflectance method
出版:Standards Australia

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This standard specifies a method for the measurement of the opacity (paper backing) of paper by diffuse reflectance.Paper that has been treated with a fluorescent dyestuff or exhibits significant fluorescence may be measured by this method, provided a near ultra-violet filter is used to eliminate the fluorescence.The opacity of coloured paper may also be measured by this standard.
ISO 2471:1998 - Similar