Particle Size Standards

Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

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Micro particles based on melamine resin nile blue-marked, analytical standard, Supelco®

Supplier: Merck

Aqueous suspension, 2,5% solids, Particle Size: 10 µm, Accuracy: std dev <0,15 µm, Analytical standard

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Micro particles based on melamine resin, analytical standard, Supelco®

Supplier: Merck

Aqueous suspension, 10% solids, Particle Size: 3 µm, Accuracy: std dev <0,1 µm, Analytical standard

Expand 3 Items

Polydisperse particle standards, CRM, Supelco®

Supplier: Merck

Particle Size Standard, PS202, Particle size: 3 - 30 µm, Certified reference material, 10× 0,1g

Expand 6 Items

Micro particles based on melamine resin FITC-marked, analytical standard, Supelco®

Supplier: Merck

Aqueous suspension, 2,5% solids, Particle Size: 10 µm, Accuracy: std dev <0,3 µm, Analytical standard

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Micro particles based on polystyrene, analytical standard, Supelco®

Supplier: Merck

Aqueous suspension, 10% solids, Particle Size: 15 µm, Accuracy: std dev <0,2 µm, Analytical standard

Expand 7 Items

Micro particles based on melamine resin, carboxylate-modified FITC-marked, analytical standard, Supelco®

Supplier: Merck

Aqueous suspension, 2,5% solids, Particle Size: 10 µm, Accuracy: std dev <0,3 µm, Analytical standard

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Micro particles based on polymethacrylate, analytical standard, Supelco®

Supplier: Merck

Particle suspension 10% solids, Particle Size: 60 µm, Accuracy: std dev <2 µm, Analytical standard

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Micro particle size standard based on polystyrene monodisperse, analytical standard, Supelco®

Supplier: Merck

Aqueous suspension, 2% solids, Particle Size: 20,0 µm, Accuracy: std dev <0,4 µm, Analytical standard

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Sieve Standards, Polydisperse Particle Standard

Supplier: WHITEHOUSE

The Polydisperse particle standards formally known as the BCR 'Mirror' standards were made both to assess the performance of the analytical laboratories and to augment a limited supply of the official standards. Although sub-divided, the BCR samples were never certified, which leaves these new polydisperse particle standards as the most comprehensively analysed set of spherical particle size reference standards available.