• These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • These uniform microspheres are NIST-traceable by calibration methods such as optical microscopy. Products from 1 to 160µm in diameter are packaged as aqueous suspensions of polystyrene spheres in dropper-tipped bottles. Diameters of 200µm and larger are packaged as dry spheres in screw-capped bottles. These larger particles are composed of polystyrene DVB (divinylbenzene). The spheres have a density of 1.05g/cm3 and an index of refraction of 1.59 @ 589nm.
  • Calibrate airborne optical particle counters (OPC) to comply with ISO 21501-4 regulations with the Thermo Scientific™ 4D Series Dry Microsphere Size Standards. Ideal for instrument manufacturers, as well as QA/QC managers in pharmaceutical, biotech and electronics manufacturing, these microsphere reference beads feature a calibration uncertainty—the range of values within which the actual mean diameter will lie—that is less than or equal to 2.5% of the mean diameter. 4D Series are available in 4 different nominal sizes: 3, 5, 7 and 10µm.
  • Calibrate airborne optical particle counters (OPC) to comply with ISO 21501-4 regulations with the Thermo Scientific™ 4D Series Dry Microsphere Size Standards. Ideal for instrument manufacturers, as well as QA/QC managers in pharmaceutical, biotech and electronics manufacturing, these microsphere reference beads feature a calibration uncertainty—the range of values within which the actual mean diameter will lie—that is less than or equal to 2.5% of the mean diameter. 4D Series are available in 4 different nominal sizes: 3, 5, 7 and 10µm.
  • Calibrate airborne optical particle counters (OPC) to comply with ISO 21501-4 regulations with the Thermo Scientific™ 4D Series Dry Microsphere Size Standards. Ideal for instrument manufacturers, as well as QA/QC managers in pharmaceutical, biotech and electronics manufacturing, these microsphere reference beads feature a calibration uncertainty—the range of values within which the actual mean diameter will lie—that is less than or equal to 2.5% of the mean diameter. 4D Series are available in 4 different nominal sizes: 3, 5, 7 and 10µm.
  • Calibrate airborne optical particle counters (OPC) to comply with ISO 21501-4 regulations with the Thermo Scientific™ 4D Series Dry Microsphere Size Standards. Ideal for instrument manufacturers, as well as QA/QC managers in pharmaceutical, biotech and electronics manufacturing, these microsphere reference beads feature a calibration uncertainty—the range of values within which the actual mean diameter will lie—that is less than or equal to 2.5% of the mean diameter. 4D Series are available in 4 different nominal sizes: 3, 5, 7 and 10µm.
  • Small borosilicate glass microspheres have fewer spherical imperfections and inclusions than other glass microspheres. They also have better mechanical and thermal stability. This series has been calibrated with NIST traceable methods of optical microscopy. They are packaged as dry powders in 1 gram bottles. They have a density of 2.50-2.55g/cm 3 and an index of refraction of 1.56 @ 589nm (23°C). Brands: Thermo Scientific
  • Small borosilicate glass microspheres have fewer spherical imperfections and inclusions than other glass microspheres. They also have better mechanical and thermal stability. This series has been calibrated with NIST traceable methods of optical microscopy. They are packaged as dry powders in 1 gram bottles. They have a density of 2.50-2.55g/cm 3 and an index of refraction of 1.56 @ 589nm (23°C). Brands: Thermo Scientific
  • Small borosilicate glass microspheres have fewer spherical imperfections and inclusions than other glass microspheres. They also have better mechanical and thermal stability. This series has been calibrated with NIST traceable methods of optical microscopy. They are packaged as dry powders in 1 gram bottles. They have a density of 2.50-2.55g/cm 3 and an index of refraction of 1.56 @ 589nm (23°C). Brands: Thermo Scientific
  • Small borosilicate glass microspheres have fewer spherical imperfections and inclusions than other glass microspheres. They also have better mechanical and thermal stability. This series has been calibrated with NIST traceable methods of optical microscopy. They are packaged as dry powders in 1 gram bottles. They have a density of 2.50-2.55g/cm 3 and an index of refraction of 1.56 @ 589nm (23°C). Brands: Thermo Scientific
  • Small borosilicate glass microspheres have fewer spherical imperfections and inclusions than other glass microspheres. They also have better mechanical and thermal stability. This series has been calibrated with NIST traceable methods of optical microscopy. They are packaged as dry powders in 1 gram bottles. They have a density of 2.50-2.55g/cm 3 and an index of refraction of 1.56 @ 589nm (23°C). Brands: Thermo Scientific
  • Small borosilicate glass microspheres have fewer spherical imperfections and inclusions than other glass microspheres. They also have better mechanical and thermal stability. This series has been calibrated with NIST traceable methods of optical microscopy. They are packaged as dry powders in 1 gram bottles. They have a density of 2.50-2.55g/cm 3 and an index of refraction of 1.56 @ 589nm (23°C). Brands: Thermo Scientific
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Thermo Scientific provides these products for calibrating particle counters which require dry particles, from 5 to 100 µm. They are conveniently packaged in dropper-tipped vials in 1 gram quantities, enabling the user to dispense the microspheres directly into the sampling chamber. They are not suitable for dispersion in liquid media. The mean diameters are traceable to the National Institute of Standards and Technology (NIST). DRI-CAL™ Particle Size Standards are composed of polystyrene DVB (divinylbenzene) and have a density of 1.05g/cm3. The refractive index is 1.59 @ 589nm. The certified mean diameter was determined by optical microscopy using a NIST calibrated stage micrometer. Size distribution was determined by electrical resistance analysis.
  • Thermo Scientific provides these products for calibrating particle counters which require dry particles, from 5 to 100 µm. They are conveniently packaged in dropper-tipped vials in 1 gram quantities, enabling the user to dispense the microspheres directly into the sampling chamber. They are not suitable for dispersion in liquid media. The mean diameters are traceable to the National Institute of Standards and Technology (NIST). DRI-CAL™ Particle Size Standards are composed of polystyrene DVB (divinylbenzene) and have a density of 1.05g/cm3. The refractive index is 1.59 @ 589nm. The certified mean diameter was determined by optical microscopy using a NIST calibrated stage micrometer. Size distribution was determined by electrical resistance analysis.
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