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International Standards

ISO 5264-2

Introducing ISO 5264-2 - Industrial Physics

ISO 5264-2 is an international ISO standard that’s used for pulp testing, guiding the beating of pulp using a PFI mill in a laboratory setting.  

In the context of this ISO test the pulp beating test relates to the preliminary step when testing the physical properties of a pulp. 

Within ISO 5264-2 there are instructions on the sampling, preparation and beating of the pulp. There’s also information on the type of beating equipment to use. The ISO 5264-2 method is applicable to all kinds of chemical and semi-chemical pulps, but it’s not recommended for pulp testing with longer fibers. 

When you want to test the physical properties of pulps, beating is a preliminary step for the preparation of laboratory-ready sheets. With the ISO PFI mill testing method, each beating is performed separately - so a new test portion of unbeaten pulp is needed every time. 

The ISO 5254-2 testing process has three key components:  

1) Disintegration
2) Thickening
3) Beating 

The ISO 5264-2 testing approach

To carry out a pulp beating test to the specifications of ISO 5264-2 you’ll need the following: 

  • A suitable PFI mill 
  • A disintegrator (as specified in ISO 5263-1)  
  • A balance (with an accuracy of at least ±0,2 g) 
  • Standard water (purified and with a set electrical conductivity) 
  • A reference pulp (for beating-control purposes) 

A specified concentration and amount of pulp is beaten between a roll (with bars) and a smooth beater housing. During the PFI mill test both components rotate in the same direction, but at different peripheral speeds. 

ISO 5264-2 testing devices

So, how can Industrial Physics improve your ISO 5264-2 testing? 

Testing Machines Inc. Laboratory Pulp Refiner PFI Type 72-15 

Made by Testing Machines Inc, our 72-15 laboratory pulp refiner is a self-contained, PFI-type pulp beater.  

This robust, stainless steel pulp testing machine is ideal for your ISO 5264-2 requirements. It features an automatic beater roll, front panel LED indicators - for convenient monitoring and troubleshooting - plus an end of cycle alarm. 

Your global test and inspection partner for ISO 5264-2