• Laser Laboratories Analyse Size Standards

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Laser Laboratories Analyse Size Standards

Feb 13 2006

One of the largest ever series of round robin tests, where a number of different laboratories analyse the same materials, has now been performed on Whitehouse Scientific's polydisperse particle size standards.

Under the auspices of the Laser Diffraction Proficiency Testing Scheme (LDPTS) more than 60 laboratories analysed four glass microsphere particle size standards covering the size range from 1 - 350 microns. While a number of testing laboratories produced results that were in excellent agreement with the certified standards, some showed significant deviations.

This work highlights the need for reference standards in combination with prescriptive methods of analysis. It also explains why there has been a significant surge in the use of such materials in laboratories performing precision particle size analysis.

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