Polydisperse Particle  Standards - Nominal Size Range: 

0.1 - 1 microns

Whitehouse Scientific 
Pipette Centrifuge

Scanning Electron
Microscopy Image

 

Characterization Results
 

    

Table of Results 

 Percentile

Method

Laboratory

 10 25 50 75 90
 

X

 0.36 0.47 0.66 0.90 1.14
Pipette H 0.35 0.47 0.65 0.88 1.09
Centrifuge O 0.38 0.50 0.69 0.95 1.18
  W 0.34 0.45 0.62 0.83 1.03
  Mean 0.36 0.47 0.65 0.89 1.11
  +/- 0.06 0.08 0.06 0.10 0.13
CPS Disc Centrifuge   0.39 0.51 0.66 0.85 1.03
Horiba Centrifuge   0.42 0.54 0.69 0.84 1.01
Horiba Laser   0.47 0.57 0.69 0.81 0.93

 

The Leading European Laboratories for pipette centrifuge:
Bradford University UK
CNRS (Nancy) France
Loughborough University UK
Whitehouse Scientific UK

 

Dispersion notes:


Sample Analysis.  Half fill a dropping bottle containing the dry powder with deionised water.  Remove the label and place in an ultrasonic bath for 10 minutes with occasional shaking.  Transfer the complete contents of 1 or more bottles into the particle sizing instrument.  For instruments requiring a fraction of the 10mg sample, shake well and immediately add the requisite number of drops into the analysis chamber.  Note that the data is only valid on the day of analysis as storage of the aqueous suspension can cause flocculation.  Store the unused dry powder samples in a dry place.
 

Important - store in a dry place.