ChromoSpheres colored polymer microspheres and ChromoSphere-T Size Standards

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were developed for use as reference or calibration materials and in applications where a high visual contrast is desired. The product line consists of uniform particle sizes between 50 and 500 microns in either red or black color. The microspheres are made from cross-linked polystyrene divinylbenzene (PSDVB) copolymer and can be stored at room temperature. They can be dispersed in aqueous media with the aid of a small amount of surfactant, or in lower alcohols, such as methanol and ethanol. Some dye extraction will result when the particles are suspended in pure alcohols, but will be minimal. Other organic solvents, such as ethers or chlorinated hydrocarbons, should be avoided because they will swell the particles and completely extract the dye. Chromosphere T product include a Certificate of Calbration and Traceability.
Typical applications include:
• Reference or calibration materials
• Testing of filtration media and systems
• Vial and container cleaning evaluations
• Flow tracing and fluid mechanics
• Contamination control
• Sedimentation processes
• Calibration of injection devices
• Pharmaceutical manufacturing control

SKU: 2dffa7abe0b8 Category:

Description

(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.

were developed for use as reference or calibration materials and in applications where a high visual contrast is desired. The product line consists of uniform particle sizes between 50 and 500 microns in either red or black color. The microspheres are made from cross-linked polystyrene divinylbenzene (PSDVB) copolymer and can be stored at room temperature. They can be dispersed in aqueous media with the aid of a small amount of surfactant, or in lower alcohols, such as methanol and ethanol. Some dye extraction will result when the particles are suspended in pure alcohols, but will be minimal. Other organic solvents, such as ethers or chlorinated hydrocarbons, should be avoided because they will swell the particles and completely extract the dye. Chromosphere T product include a Certificate of Calbration and Traceability.
Typical applications include:
• Reference or calibration materials
• Testing of filtration media and systems
• Vial and container cleaning evaluations
• Flow tracing and fluid mechanics
• Contamination control
• Sedimentation processes
• Calibration of injection devices
• Pharmaceutical manufacturing control

A group of products with a wide variety of particle sizes and properties. They are ideally suited for applications such as fluid mechanics research, filter evaluation and testing, dispersion studies and many other research and development applications.
These products are not supplied with a certificate of traceability. They are not intended for use as instrument calibrators because they lack the strict specifications and metrology process required for those applications.
Brands: Thermo Scientific, Applied Microspheres

Polymer microspheres like the Chromospheres are ideally suited for this application, because they are dyed with deeply colored red or black dyes. The intense colors result in very high contrast and visibility relative to most backgrounds. They are available as dry powders and can easily be suspended in aqueous media if desired. (For suspending dry microsphere powders, please see Technical Note……..) ChromoSpheres are available with and without certificate of traceability to NIST. The diameters of ChromoSphere-T Certified Size Standards are traceable to the standard meter through the National Institute of Standards and Technology (NIST) and are calibrated by optical microscopy.

Brand: Thermo Scientific

  • Item no: BK400T
  • Product: Particle Size Standards
  • Particle Size: 400 µm
  • Concentration: 2.8 x 10E4
  • Composition: Polystyrene-DVB
  • Surface Modification: n/a
  • Volume / Quantity: 1 gr.
  • Color: BLACK
  • NIST Traceable: YES
  • (Key) application: Research and test particles
  • (Sub) application: Particle sizing
  • Application L1: Filter and membrane testing
  • Application L2: Visualisation study
  • Brand: Thermo Scientific

Additional information

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