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

Properties

• grade: analytical standard
• Quality Level: 100
• form: aqueous suspension, particles
• crosslinking: 0 % cross-linked
• concentration: 2% (solids)
• technique(s): diffraction/scattering: suitable
• particle size: 1.0 μm std dev <0.05 μm
• application(s): cosmetics; environmental; food and beverages; pharmaceutical
• format: neat
• storage temp.: 2-8°C

Description

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.

Safety Information

• Storage Class: 10 - Combustible liquids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves