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Physical testing - CRB

Physical testing

In addition to XRF analytics we determine the following physical parameters:

  • Moisture content, loss on ignition
  • grain size distribution by sieving
  • open porosity
  • water absorption
  • bulk density
  • apparent density
Physical testing bulk density, Loss on ignition, ash-content - CRB GmbH

Our test procedures

  • DIN 51081:2002-12 - Testing of oxidic raw materials and materials - Determination of change in mass on ignition
  • DIN EN ISO 26845:2008-06 - Chemical analysis of refractories - General requirements for wet chemical analysis, atomic absorption spectrometry (AAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) methods  (ICP-AES)
  • DIN EN 993-18:2002-11 - Methods of test for dense shaped refractory products - Part 18: Determination of bulk density of granular materials by the water method with vacuum

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Order inquiry & contact

  • Tel.: +49 (0)5505 // 940 98-0
  • fax: +49 (0)5505 // 940 98-260

News

Feb 18, 2026

Asbestos in play sand: Consumer Advice Center NRW warns of contaminated kinetic sand

Several states, including the Consumer Advice Center NRW, are now warning of asbestos in colorful play sand and decorative sand from China. Find out more about this issue here. ... read more

May 21, 2025

Asbestos in a cigarette butt: a special caper of the tobacco industry - our contribution to World No Tobacco Day

It is well known that smoking causes cancer. But did you know that some cigarettes even used to contain asbestos? You read that correctly: The same substance that is now strictly forbidden and for which there are strict rules on handling and disposal during renovation work was once in cigarette filters – as a supposed health promise! ... read more

May 9, 2025

Testing raw materials with XRF — exciting insights into areas of application

For decades, X-ray fluorescence (XRF) analysis has been an indispensable tool for raw material control in the industry. But for which applications are XRF services exactly relevant? Our B2B customer, Dr. Krakow Rohstoffe GmbH, clearly shows one area of application on his YouTube channel. ... read more