BS EN ISO 5263-3:2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Pulps. Laboratory wet disintegration Disintegration of mechanical pulps at greater than or equal to 85 °C
Hardcopy , PDF
28-02-2023
English
30-04-2009
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Foreword
1 Scope
2 Normative references
3 Definition
4 Apparatus
5 Preparation of test portion
6 Procedure
7 Test report
Annex A (normative) - Construction of the Standard
disintegrator
Annex B (normative) - Checking the Standard disintegrator
Annex C (normative) - Circulation disintegrator
Annex D (informative) - The effect of latency in mechanical
pulps
Bibliography
Defines an apparatus and the procedures for the laboratory wet disintegration of mechanical pulps that exhibit latency.
| Committee |
PAI/11
|
| DevelopmentNote |
Issue Date: 30/04/2009. Together with BS EN ISO 5263-1 and BS EN ISO 5263-2 supersedes BS EN ISO 5263. Supersedes 03/309342 DC. (04/2009) Reviewed and confirmed by BSI, July 2014. (06/2014)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This part of ISO 5263 specifies an apparatus and the procedures for the laboratory wet disintegration of mechanical pulps that exhibit latency. This apparatus and procedure are required for preparation of the test portion in a number of other International Standards dealing with pulps.
ISO 5263-3 is applicable to all kind of mechanical pulps (i.e. mechanical, semi-chemical and chemi-mechanical pulps) exhibiting latency. Mechanical pulps not exhibiting latency shall be disintegrated according to ISO 5263-2.
The procedure specified in ISO 5263-2 should be used to disintegrate all mechanical pulps to be measured for brightness.
NOTE Brightness is not significantly altered by the presence of latency; however, hot disintegration of mechanical pulps can lead to significant loss of brightness.
| Standards | Relationship |
| ISO 5263-3:2004 | Identical |
| EN ISO 5263-3:2004 | Identical |
| ISO 638:2008 | Paper, board and pulps Determination of dry matter content Oven-drying method |
| ISO 14487:1997 | Pulps — Standard water for physical testing |
| ISO 4119:1995 | Pulps Determination of stock concentration |
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