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International Standards

ISO 3127

Introducing ISO 3127 - Industrial Physics 

ISO 3127 is a global ISO testing standard that helps you to determine the impact resistance of various forms of thermoplastic pipe using the round the clock method.  

Using this ISO international standard you’ll be able to understand the impact resistance of circular cross sections of thermoplastic pipes. It’s a thermoplastic pipe testing method that’s applicable to isolated batches of pipe tested at 0°C. To perform a successful test you’ll need a suitable impact testing machine, such as a falling weight impact tester. 

ISO 3127 testing approach

When you’re following the ISO 3127 testing approach you subject your test pieces to controlled blows from your falling weight impact tester. The objects that are dropped need to be of a specified mass and shape. They’re dropped from a known height onto specified positions around the circumference of the thermoplastic pipe testing sample. This is where the reference to ‘round the clock’ testing originates.  

The true impact rate (TIR) of the batch, or production run from an extruder, is estimated. The severity of the ISO 3127 test can be adjusted by changing the mass of the striker or by altering the drop height.  

ISO 3127 testing definitions

Within the ISO 3127 standard documentation you’ll find a number of definitions to support your impact resistance testing, including: 

True impact rate (TIR): the total number of failures divided by the total number of blows, as a percentage, as if the whole batch had been tested. In practice, test pieces are drawn at random from the batch and the result is only an estimate of the TIR for that batch. 

Failure: any shattering, cracks or splits caused by the impact resistance test are typically observed by your naked eye - although lighting devices may be used to assist in examining the specimens. A simple indentation of your thermoplastic pipe testing sample is not considered a failure.  

ISO 3127 testing equipment

So, how can Industrial Physics improve your ISO 3127 impact resistance testing?  

Falling weight impact tester – Ray-Ran
The Ray-Ran universal falling weight impact tester is simply the best in its class. It’s used to determine the energy required to break or rupture test specimens such as pipe, sheet, laminates, composites, ceramics, and nonferrous metals for material and component evaluation to international testing methods such as ISO 3127.  

Need ISO 3127 testing solutions? Get in touch

We’ve learnt a thing or two about impact resistance testing over the decades. Now Industrial Physics is recognized as a brand that likes to bring new, innovative impact resistance testing equipment, including falling weight impact testers to market. 

We like to share our knowledge and we’re here to help you to answer your questions about impact resistance testing. Across the knowledge base of our website we publish lots of blogs on related subjects. For example, here’s an Industrial Physics blog that explores the various types of impact test inspection equipment.  

If you have any questions about ISO 3127 and how we can help you with your impact resistance testing, then please just get in touch!

Contact us - Industrial Physics

Your global test and inspection partner for ISO 3127 

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