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download between 0-24 hoursReleased: 2013
ISO 22891:2013
ISO 22891:2013-Paper — Determination of transmittance by diffuse reflectance measurement
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| Standard´s number: | ISO 22891:2013 |
| Pages: | 11 |
| Edition: | 2 |
| Released: | 2013 |
DESCRIPTION
ISO 22891:2013
ISO 22891:2013 specifies a method for the calculation of transmittance based upon diffuse reflectance measurements. The use of the method is restricted to white and near-white translucent papers (see 3.9). If it is necessary to determine the transmittance of papers which contain fluorescent whitening agents, the fluorescence emission is eliminated using the prescribed UV cut-off filter.