TAPPI T826

Introducing TAPPI T 826 – Industrial Physics

TAPPI T 826 is a TAPPI international testing method to determine the edgewise compressive strength of containerboard samples. 

This TAPPI testing method is for containerboard testing of samples with a span-to-thickness ratio of five or less. This is equivalent to a grammage of between 100g/m2 and 440g/m2. 

TAPPI T 826 compressive strength testing apparatus

To perform a successful TAPPI T 826 edgewise compression strength test you’ll need a couple of pieces of apparatus, which we will happily supply!  

• Compression tester – it needs two clamps with stationary and moveable jaws to grip your corrugated sample. The corrugated board compression tester should also have a means for measuring the maximum compressive strength.  
• Cutting device – a precision die cutter is preferred. 

TAPPI T 826 compressive strength testing process 

This TAPPI T 826 edgewise compressive strength test involves gripping your sample between two clamps and crushing them together until a compression failure occurs. The maximum force that caused the box to fail is measured.   

Why is TAPPI T 826 compressive strength testing important?

It’s important to understand the edgewise compressive strength capability of your containerboard. It’s one of the main factors affecting the overall compressive strength of a container. 

If you know the cross-directional short span compressive strengths of the linerboard and the medium, then you can predict the compressive strength of the corrugated board in its final boxed form.   

TAPPI T 826 edgewise compressive strength testing devices 

So, how can Industrial Physics improve your T 826 edgewise compressive strength testing? 

Messmer Büchel – Short Span Compression Test (SCT, STFI): 500N 17-36
Developed by Messmer Büchel, our paper testing specialist brand, the 17-36 Short Span Compression Tester incorporates a friction-quashing precision mechanical design for unmatched accuracy and repeatability. 

Need compressive strength testing solutions? Get in touch

At Industrial Physics we crush the competition when it comes to edgewise compressive strength testing support. We’ve been designing and building compression strength testing devices for many years and we’ve learnt a thing or two about corrugated board testing along the way.  

We like to share this expertise across the knowledgebase section of our website where you’ll find blogs like this one – what is edge crush testing? – ECT FAQs? Also, be sure to check out our handy conversion chart for edge crush testing here.  

If you have any further questions, then don’t hesitate to get in touch!  

Your global test and measurement partner for TAPPI T 826