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Whitehouse Scientific introduces new certified silica microspheres

WHITE JOB 244_Image.jpgWhitehouse Scientific has extended its range of glass microspheres from 10 microns down to 1.5 microns with the addition of a new certified range of silica microspheres. In addition to their use in particle sizing, these silica microspheres have applications in areas such as drug delivery, respiratory studies and filter testing. Supplied as dry powders in sets of five with each vial containing 0.2 g, they can be used as either wet suspensions or in the dry form.  

Highly spherical and having a narrow size distribution, the new microspheres are traceable to the NIST international reference standard using a unique precision microscope method that corrects for any pixel asymmetry in the camera sensor.  

Analytical precision is confirmed using certified discs on an NPL (National Physical Laboratory, UK) particle reference graticule and 3-dimensional NIST-traceable latex standards.  

For detailed information about Whitehouse Scientific's range of calibration standards please go to

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