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Round-robin tests X-ray fluorescence analysis, XRF

Since the foundation of CRB Analyse Service GmbH we regularly participate in collaborative studies to assure external control of our analytical methods.

Results are ordered by material groups. Most recent studies are presented on top of the lists.

 

Round-robin tests XRF | Soils and rocks

Round-robin tests soils and rocks, mainly from the GeoPT proficiency testing programme of the International Association of Geoanalysts, IAG, in which we have participated since beginning of the 90ies

Here you find examples of magmatic rocks, carbonates and sediments, partly highly polluted by heavy metals

 

Round-robin tests XRF | refractory & ceramic raw and processed materials

Round-robin tests XRF | Cement and raw materials for its production

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News

Mar 9, 2026

DCONex 2026 trade fair review: News from asbestos analysis and pollutant management

The CRB team attended various sessions at DCONex 2026 to learn about the latest developments in pollutant management and once again took to the stage to report on the topic of asbestos analysis. This year, our laboratory manager Dr. Stefan Pierdzig gave a presentation on geogenic asbestos, and our colleague Dr. Gunnar Ries moderated the workshop “Analysis of Amphiboles.” We summarize other important topics from this year's conference in this follow-up report. ... read more

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