(NIST) traceable particle size standards enable laboratories to validate or calibrate their particle sizing instruments or methods in order to comply with ISO, GMP, GLP and other international standards. They are traceable to certified reference materials from international standard organisations through an unbroken chain of measurement leading back to the standard meter.
Brands: Thermo Scientific, Applied Microspheres.
This series is used as NIST traceable calibrants or controls for instruments requiring a higher density and more contrast to incident radiation than that provided by the polymer microspheres. The microspheres are made of soda lime glass which has trace amounts of metallic elements. This makes them easily detectable by non-dispersive X-ray methods and improves their contrast and reflectivity in optical, ultrasonic and electron beam detection methods.
Most of the non-spherical and broken particles have been removed, assuring a high percentage of round spheres. They are packaged as dry powders in 1 gram bottles. The soda lime microspheres have a density of 2.4-2.5g/cm3 and an index of refraction of 1.51 @ 589nm. The softening temperature is 720°C and the dielectric constant is 7.3 @ 1 KHz and 20°C.
Brands: Thermo Scientific
A group of various products, all slightly different for the specific type of application. These products show a well defined size uniformity and are NIST traceable
Brands: Thermo Scientific, Applied Microspheres
Glue line spacer technology
- Item no: 9200
- Product: Particle Size Standards
- Particle Size: 200 µm
- Concentration: 1.0 x 10E5
- Composition: Soda Lime Glass
- Surface Modification: n/a
- Volume / Quantity: 1 gr.
- NIST Traceable: YES
- (Key) application: Metrology and instrument calibration
- (Sub) application: Particle sizing
- Application L1: Particle sizing
- Application L2: Semi conductor
- Brand: Thermo Scientific