ISO 872

Introducing ISO 872 – Industrial Physics  

ISO 872 was an international ISO testing method used to determine the ash content of unplasticized cellulose acetate.  

The International Organization of Standards (ISO) produce a wide range of ISO standards to guide manufacturers, production lines and laboratories when checking the integrity of packaging, products, and materials across many industries. 

The ash that’s measured using the ISO 872 testing method is formed from the inorganic matter that’s present in the product. The ash testing method is intended for cellulose acetate without plasticizers and free of additives, fillers, dyes or other materials which may affect the test. 

When plasticizers, additives, fillers or dyes which could affect the test are present, they should be separated by a method agreed between the contracting parties. 

ISO 872 ash testing apparatus 

To carry out a successful ISO 872 ash content test you’ll need the following testing apparatus: 

• A crucible, of silica, platinum or porcelain (capacity between 50 ml and 200 ml) 

• A Bunsen burner (with silica triangle and tripod) 

• Muffle furnace (thermostatically controlled at 600 f 15 OC) 

• Analytical balance (accurate to the nearest 0.0001g) 

• Desiccator (containing a drying agent, for example, anhydrous calcium chloride). 

ISO 872 ash testing equipment 

So, how can Industrial Physics improve your ISO 872 ash content testing? 

TQC Sheen PosiTector SmartLink
Turn your cell phone or tablet into a virtual PosiTector gauge using our PosiTector SmartLink and free mobile app. The PosiTector SmartLink accepts all PosiTector 6000, RTR-H, and SPG probes and converts easily into a coating thickness gauge or surface profile gauge.

Be sure to check out some more of the ash content testing devices across the IP portfolio. 

Need ash content testing solutions? Get in touch  

We’ve learnt a thing or two about ash content testing over the decades. We like to share our knowledge and we’re here to help you to answer your questions. Across the knowledgebase section of our website we publish lots of blogs on related subjects.   

If you have any questions about ISO 872, or any aspect of your ash content testing, then just get in touch!

Contact us – Industrial Physics

Your global test and measurement partner for ISO 872