BioSciences - Polysciences, Inc.

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Microspheres & Particles
ViaCheck Viability Instrument Standards
ViaCheck Viability & Concentration Controls
ViaCheck Viability and Concentration Standards are part of our extensive line
of microsphere standards for instrument QC. ViaCheck standards mimic the
light scattering characteristics of “live” and “dead” cells in the trypan blue dye
exclusion method, and may be used to confirm the capabilities and verify the
performance of image-based cell viability instruments. The standards are available
in a range of common concentrations and live/dead ratios.
Technical Data Sheets #729 and #736
For more information please call (800) 523-2575 or visit: polysciences.com
Catalog # Size
Viable % Count or
Particles/ml
ViaCheck Viability Control 0% 0 1 x 10 6 24622-20 20 ml
ViaCheck Viability Control 50% 50 1 x 10 6 24623-20 20 ml
ViaCheck Viability Control 75% 75 1 x 10 6 24624-20 20 ml
ViaCheck Viability Control 90% 90 1 x 10 6 24625-20 20 ml
ViaCheck Viability Control 100% 100 1 x 10 6 24626-20 20 ml
ViaCheck Concentration Control 1 x 10 6 1 x 10 6 24627-20 20 ml
ViaCheck Concentration Control 4 x 10 6 4 x 10 6 24628-20 20 ml
ViaCheck Concentration Control 8 x 10 6 8 x 10 6 24629-20 20 ml
New! SureCount Particle Count Standards
SureCount Particle Count Standards A3dmw
SureCount Standards are suspensions of polymer microspheres intended for the validation and
monitoring of particle counters and supporting sample preparation processes. SureCount standards
are available in diameters of 3µm, 5µm, 10µm and 15µm. Diameters are traceable to NIST Standard
Reference Materials. The standards are supplied as ~1x106 microspheres/ml aqueous suspensions in
10ml volumes and each bottle is provided with a Certificate of Traceability. Technical Data Sheet #852
Diameter
SureCount Particle Count Standard 3µm 25379-10 10 ml
SureCount Particle Count Standard 5µm 25380-10 10 ml
SureCount Particle Count Standard 10µm 25381-10 10 ml
SureCount Particle Count Standard 15µm 25382-10 10 ml