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These particle size standards are certified for mean diameter and are traceable to National Institute of Standards and Technology( NIST) standards.

They are available as uniform spheres in a range of discrete sizes from 20nm to 2000μm. The spherical diameters are calibrated with linear dimensions transferred from NIST standard reference materials.

The products can be used for the calibration of electron microscopes, AFMs, light scattering instruments and other particle measuring equipment. Size standards are available in polystyrene, silica or glass.

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6 products available

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  1. Monosized microsphere size standards 1 - 1000um
    These highly uniform polystyrene spheres are calibrated by NIST standardised methods which include photon correlation spectroscopy, transmission electron microscopy and light microscopy.
    Average lead time: 6 to 44 days

    From £672.21

    Average lead time: 6 to 44 days
  2. Uniform polymer microspheres 5 - 40um
    This series of microspheres has a slightly wider distribution than the monodisperse microsphere size standards.
    Average lead time: 6 days

    From £492.48

    Average lead time: 6 days
  3. Silica particle size standards 0.5 - 1.6um
    This series of particle size standards is designed for applications requiring monodisperse inorganic spheres.
    Average lead time: 6 to 13 days

    From £468.98

    Average lead time: 6 to 13 days
  4. Glass size standards
    Glass microspheres can be used in any application that requires a NIST traceable size standard with a narrow size distribution, and where sample conditions may not be suitable for polystyrene spheres.
    Average lead time: 6 to 29 days

    From £468.98

    Average lead time: 6 to 29 days
  5. Silicon test specimen
    A silicon test specimen made of single crystal silicon of overall dimensions 5 x 5mm and is 0.5mm thick.
    Average lead time: 1 to 27 days

    From £54.56

    Average lead time: 1 to 27 days
  6. Certified silicon test specimens
    Individual silicon test specimens are calibrated to a guaranteed accuracy of better than 1%.
    Average lead time: 27 days

    From £316.33

    Average lead time: 27 days
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6 products available

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LEAD TIMES: Average Lead Times are shown individually in working days for any products not currently in stock. Whilst we regularly update this, actual Lead Times can vary due to supply chain fluctuations.
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