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Merck
CN

72938

Micro particle size standard based on polystyrene monodisperse

analytical standard, size: 1.0 μm

Synonym(s):

Monodisperse polystyrene latex particles (1 μm), monodisperse polystyrene microbeads (1 μm), monodisperse polystyrene microspheres (1 μm), polystyrene monodisperse microparticles (1 μm), Size standards

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About This Item

MDL number:
MFCD00243243
UNSPSC Code:
41116107
NACRES:
NA.24

Key Documents

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grade

analytical standard

Quality Level

100

form

aqueous suspension
particles

crosslinking

0 % cross-linked

concentration

2% (solids)

particle size

1.0 μm std dev <0.05 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: 1 μm) are a particle size standard, ideal for characterizing particle size distribution (PSD) of test samples.

Application

Used to test the performance of particle sizers and particle counters.
Monodisperse polystyrene latex particles are also used to calibrate:
  • Airy Disc First Fringe (ADFF) analysis method based on size measurements
  • Aerosol instruments

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)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP0583
BCCN4284
BCCN4285
BCCN1796
BCCM7570

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Extending the Faraday cup aerosol electrometer based calibration method up to 5 ?m
Jarvinen A, et al.
Aerosol Science and Technology, 52(8) (2018)

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