AS/NZS 1301.446S:2005
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Methods of test for pulp and paper Measurement of diffuse blue reflectance factor (brightness) of pulp, paper and paperboard
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30-01-2024
English
27-04-2005
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This Standard sets out a method to measure the diffuse blue reflectance factor (brightness) of pulp, paper and paperboard.
| Committee |
PK-019
|
| DocumentType |
Standard
|
| ISBN |
0 7337 6650 1
|
| Pages |
6
|
| PublisherName |
Standards Australia
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes | |
| UnderRevision |
This Standard sets out a method to measure the diffuse blue reflectance factor (brightness) of pulp, paper and paperboard.The scope of this Standard is limited to pulps, papers and paperboards which are effectively free from materials emitting fluorescent radiation under the conditions of measurement. Such materials are used to enhance the reflectivity of white papers by absorbing ultraviolet radiation and re-emitting it in the blue visible range. ‘Effectively free’ means that the fluorescent contribution to the diffuse blue reflectance factor is not greater than 0.3% reflectance factor. Samples which contain fluorescent materials may be tested by this procedure using a UV or near-UV cut-off filter to exclude UV radiation from the light reaching the test piece (see Clause 7.3), but in such cases the test result is not indicative of the visual appearance of the sample.
Originated in Australia as AS 1301.446s-1982.
Originated in New Zealand as NZS 1301.446s:1982.
Previous editions AS 1301.446s-1992 and NZS 1301.446s:1992.
Jointly revised and designated as AS/NZS 1301.446s:2005.
| AS/NZS 1301.415S:1998 | Methods of test for pulp and paper Standard atmosphere for testing paper and board and procedure for monitoring the atmosphere |
| AS 1301.P415M-1986 | Methods of test for pulp and paper (metric units) - Standard atmosphere for paper testing |
| AS/NZS 1301.214S:2007 | Methods of test for pulp and paper Equipment for preparation of handsheets (Reconfirmed 2017) |
| AS 1301.436S-1991 | Methods of test for pulp and paper (metric units) - Measurement of diffuse reflectance factor |
| AS/NZS 1301.203S:1993 | Methods of test for pulp and paper Forming handsheets for physical testing of pulp |
| AS/NZS 1301.436S:2005 | Methods of test for pulp and paper Measurement of diffuse reflectance factor |
| AS/NZS 1301.214S:1993 | Methods of test for pulp and paper Equipment for preparation of handsheets |
| AS/NZS 1301.203s:2007 | Methods of test for pulp and paper Forming handsheets for physical testing of pulp (Reconfirmed 2017) |
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