Pulps. Laboratory wet disintegration - Disintegration of mechanical pulps at greater than or equal to 85 °C
Pulps. Laboratory wet disintegration - Disintegration of mechanical pulps at greater than or equal to 85 °C
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1 Scope 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.
Mentioned in the description and other BS standards
