AS/NZS 1301.515:2017 PDF
Adopts ISO2470-1:2016, which specifies a method for measuring the diffuse blue reflectance factor (ISO brightness) of pulps, paper and boards.
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Methods of test for pulp and paper, Method 515: Measurement of diffuse radiance factor (diffuse reflectance factor) – Indoor daylight conditions (ISO brightness)
standard by Standards Australia / Standards New Zealand , 05/01/2017