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International Standards

ISO 9895

Introducing ISO 9895 - Industrial Physics

ISO 9895 is an ISO international crush testing method that’s used to test the compressive strength of paper and board using a short-span compression tester. 

This ISO testing approach is designed for crush testing papers and boards to be used in the manufacture of containers and boxes. This cardboard box testing standard is recommended for papers and boards with a grammage from 100 g/m2 to 400 g/m2. 

The ISO 9895 testing principle

To carry out a short span compression test using the ISO 9895 method and a compression tester then you’ll first need to clamp your test piece between two clamps. These crush testing clamps are forced towards each other until a compressive failure occurs. The maximum force during the compression test is measured and the compressive strength is calculated. 

Common ISO 9895 crush testing definitions to know

There are a few definitions within ISO 9895 that you’ll need to understand to perform a successful short span compression test, these include: 

Compressive strength: the maximum compressive force per unit width that a test piece of paper or board can withstand until the onset of failure. The compressive strength is expressed in kilonewtons per meter. 

Compressive index: the compressive strength divided by the grammage. 

Apparatus for ISO 9895 short span compression testing

There are certain pieces of apparatus that you will need to carry out a successful ISO 9895 compression test, all of which Industrial Physics can provide you with.  

Compressive tester: with two clamps for holding a test piece 15 mm wide. Each compression tester clamp includes a stationary jaw and a movable jaw. The crush test clamps have a high-friction surface and should be able to hold the test piece in position with a constant clamping force of 2 300 ± 500 N. They’re designed to grip the test piece firmly over its full width.  

Cutting device: designed to produce short span compression testing sample pieces of the required dimensions with clean and parallel edges. 

ISO 9895 compression testing equipment

So, how can Industrial Physics improve your ISO 9895 short span compression testing? 

Messmer Büchel – Short Span Compression Test (SCT, STFI): 500N 17-36 

Test and evaluate the strength of your paper and board samples with confidence using our industry-leading short span compression tester. 

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 ISO 9895 compression testing solutions? Get in touch

We’ve learnt a thing or two about short span compression testing over the decades. Now Industrial Physics is recognized as a brand that likes to bring new, innovative cardboard box testing equipment to market. 

We like to share our knowledge and we’re here to help you to answer your questions about crush testing. Across the knowledgebase section of our website we publish lots of blogs on related subjects. For example, why not have a look at this blog on compression and crush testing? Then you could try this piece which explores the reasons why manufacturers should consider switching to short-span compression testing. 

If you have any questions about ISO 9895 crush testing and how we can help you with your short span compression testing equipment portfolio, then please just get in touch!

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Your global test and inspection partner for ISO 9895 

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