PAPTAC D4

Introducing PAPTAC D4 – Industrial Physics

The PAPTAC D4 method is a testing approach used to measure the thickness and apparent density of paper and paperboard. 

The Pulp and Paper Technical Association of Canada established the PAPTAC standards in order to harmonize the processes and guide the activities of the pulp and paper industry.  

Understanding the thickness of a paper, paperboard, or combined board samples is important and following the PAPTAC D4 reveals variations in thickness. 

Why is paper thickness testing necessary?

We measure paper thickness for research work, routine control, design of end-use products, and for acceptance testing for adherence to specifications. Thickness testing also reveals an important characteristic that affects flexural stiffness. 

PAPTAC D4 thickness testing devices

So, how can Industrial Physics improve your PAPTAC D4 thickness testing? 

Messmer Büchel Digital Micrometer 49-56
With the Digital Micrometer 49-56 from Messmer Büchel you’ll achieve accurate thickness measurements of a wide range of sheet-like substrates even at low pressures. And the instrument complies to the most demanding of international standards.  

The 49-56 is a popular choice from our range of easy-to-use digital micrometers, it offers impressive accuracy within 0.001mm (0.00004in.) or 1% of paper thickness, whichever is better.

Need PAPTAC D4 thickness testing solutions? Get in touch

At Industrial Physics we’re with you through thick and thin! We’ve learnt a thing or two about paper thickness testing over the decades. Now Industrial Physics is recognized as a brand that likes to create innovative digital micrometers and thickness testing equipment to market. 

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

You could start with this blog – guide to corrugated cardboard thickness grades. Then perhaps follow-up with this piece which delves further into the best ways to measure paper thickness. 

If you have any questions about PAPTAC D4 and how we can help you with your paper thickness testing, then just get in touch!  

Your global test and measurement partner for PAPTAC D4