TAPPI T275

Introducing TAPPI T275 – Industrial Physics  

TAPPI T275 is a TAPPI international testing standard that’s designed to separate contaminants in recycled fiber from pulp fibers for subsequent examination and quantification. 

This TAPPI paper testing approach will detect anything from shives in mechanical pulp, macro stickies, plastics, sand, metal pieces or flakes. Screen plates of various slit widths such as 0.10 mm, 0.15 mm, 0.20 mm, and 0.25 mm are used in the separation process.  

The TAPP T 275 pulp testing method involves using a screening device called a Somerville screen. The separation of your sample material is based on the size difference between the fibers and the contaminants. However, depending on their flexibility and geometry, not all of the larger contaminants can be captured by the screen. 

What is a Somerville Screen?

The Somerville Screen is a Somerville-style pulp screener designed to ensure that no fiber useful for papermaking is included in the shive content. It also checks that no significant fiber bundles are present in the accepted stock.  

Although originally designed for determining shive in groundwood pulps, the Somerville Screen test can be performed on many types of mechanical and chemical pulps. 

Reasons to choose a Somerville Screen test? 

The types of contaminants that the Somerville screen test searches for can adversely affect paper machine operation and downgrade the quality of the final product. So it’s important to understand them through qualitative and quantitative measurements.  

The TAPPI T 275  pulp testing method provides a way to isolate the contaminants for the purposes of qualification and quantification. When you know the contaminants you’re dealing with you can best evaluate the effectiveness of a process or a piece of equipment, as well as the final product quality.  

TAPPI T275 testing devices  

So, how can Industrial Physics improve your TAPPI T275 pulp testing? 

Messmer Büchel Screen plate for Somerville-style pulp screener 

The Somerville Screen checks that no fiber useful for papermaking is included in the shive content to TAPPI T 275 standards. 

Brought to you by Messmer Büchel, our expert paper testing brand, our pulp screening machine offers accurate shive analysis of pulps, separation of stickies and plastics from recycled fibers. 

Need TAPPI T275 pulp testing solutions? Get in touch  

We’ve learnt a lot about paper and pulp testing over the years. We strive to continually improve upon the innovative pulp testers – including Somerville Screen pulp screeners – that we bring to market.  

We’re here to help you to answer your questions about paper and pulp testing and we’re only too happy to share our knowledge. Across the knowledgebase section of our website we publish lots of blogs on related subjects.   

First up, why not try this piece? It’s an introduction to pulp evaluation and sheet making. Alternatively, check out this blog on testing the physical and optical properties of paper. 

If you have any questions about TAPPI T275 and how we can help you with your pulp testing, then please just get in touch!

Contact us – Industrial Physics 

Your global test and measurement partner for TAPPI T275