PRODUCT DESCRIPTION
Check Spheres are an inexpensive particle size standard
designed for daily use to confirm the performance of most types of particle size
analysers. They are manufactured to the same tolerances as more expensive
certified reference materials.
The Spheres are supplied at a 1% concentration which is considerably higher
than most certified materials thus the amount required to carry out the check is
less and substantially more checks can be carried out.
They are available in a range of discrete sizes from 1µm (micron) to
140um. (see below)
The Spheres are manufactured using the “Ugelstad-process” and are
extremely monisized, producing CV’s of less than 3% on the main peak of the
distribution.
Each package of PsS Check Spheres contains a Certificate of Calibration . A
Certificate of Traceability to NIST is available upon request (at an extra
cost).
SPECIFICATION:
|
Particle Composition |
Polystyrene |
|
Particle Density: |
Less Than 10um is 1% Concentration |
|
Size Ranges: |
1um, 3um, 5um, 10um, 20um, 40um, 80um, 140um |
|
Uniformity: |
Extremely monosized with a CV<3% on the main peakUtilises the “Ugelstad-process” |
|
Bottle Sizes: |
25ml. |
|
Expiration Date: |
= 24 months |
|
Additives: |
Dispersant, Anti-Bacterial Re-agent |
|
Package Includes: |
Certificate of Calibration NIST Traceability Certificates are available
upon request (at an extra cost) |
|
Storage & Handling: |
Store at room temperature or refrigerated. Keep bottle tightly sealed
to avoid contamination. |
Download
pdf. brochure
If you would like
more information on the PsS Particle Standards,
Please Contact Us and we will assist you.
|
