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Key Documents

07091

Supelco

Micro particle size standard based on polystyrene monodisperse

size: 200 μm

Synonym(s):

Monodisperse polystyrene latex particles (200 μm), monodisperse polystyrene microbeads (200 μm), monodisperse polystyrene microspheres (200 μm), polystyrene monodisperse microparticles (200 μm), Size standards

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About This Item

MDL number:
UNSPSC Code:
41116107
NACRES:
NA.25

grade

analytical standard

Quality Level

form

aqueous suspension

crosslinking

2 % cross-linked

concentration

2% (solids)

particle size

200 μm std dev ≤3 μm

application(s)

glass & ceramic
industrial qc
pharmaceutical

format

neat

storage temp.

2-8°C

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General description

Monodisperse polystyrene based micro particles (size: 200 μm) are a size standard, ideal for profiling particle size distribution (PSD) of a particle system.
The particle diameter of 200 μm is characterized using Olympus optical microscope. The measuring instruments are calibrated using standards obtained from the Community Bureau of Reference (BCR, Belgium: Standards RM 165, 166 or 167) and from the NIST (SRM 1690, 1691 or 1692).

Application

Used to calibrate and monitor the performance of particle size analyzers.

Features and Benefits

  • suitable for routine instrument calibration checks, testing and corrections
  • available in 5 mL and 10 mL pack sizes as neat samples

Analysis Note

For every lot exact values of particle size and standard deviation are determined with an accuracy of 0.001 μm. The size determination of these particles follows procedures described by National Institute of Standards and Technology (NIST, USA) respectively by the Community Bureau of Reference (BCR), esp.:
  • Transmission electron microscopy (TEM)
  • Scanning electron microscope
  • Light microscopy
  • Coulter counter with MDF-system
Calibration of equipment is carried out with NIST-respectively BCR-particle size standards.

Legal Information

Coulter is a trademark of Beckman Coulter, Inc.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

410.0 °F

Flash Point(C)

210 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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