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Certification of NIST SRM 1962: 3 μm Diameter Polystyrene Spheres
This report describes the certification of SRM 1962, a NIST Standard Reference Material for particle diameter. It consists of an aqueous suspension of monosize 3 (μm polystyrene spheres. Two calibration techniques were used: optical microscopy and electron microscopy. The first one gave a mean diame...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
1992
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4914233/ https://www.ncbi.nlm.nih.gov/pubmed/28053431 http://dx.doi.org/10.6028/jres.097.007 |
Sumario: | This report describes the certification of SRM 1962, a NIST Standard Reference Material for particle diameter. It consists of an aqueous suspension of monosize 3 (μm polystyrene spheres. Two calibration techniques were used: optical microscopy and electron microscopy. The first one gave a mean diameter of [Formula: see text] μm and a standard deviation of the size distribution σ(D) = 0.020 μm, based on measurement of 4600 spheres. The second technique gave [Formula: see text] μm, based on measurement of 120 spheres. The reported value covering the two results is [Formula: see text] μm with a maximum uncertainly of 0.016 μm, with σ(D)=0.020 μm. |
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