Multi-size standards
Pentamodal-Size Standard (0.06-2 µm, 5 monodisperse populations) 1% suspension
- Cat. No.
- 15001-03
- Diameter
- 0.06-2 µm
- Pack size
- 3 mL
- Type
- Certified reference material
- Manufacturer
Technical data
| Diameter range | 0.06-2 µm |
|---|---|
| Populations | 5 |
| Form | suspension |
| Solids | 1% |
| Composition | 5 monodisperse populations of polymer (polystyrene) microspheres |
| Concentration (solids) | 1% |
| Pack | 3 mL |
| Certification | d10, d50 and d90 values, or full traceability of the individual diameters |
| On request | Other diameter mixtures and distributions |
Description
Mixture of five monodisperse polymer microsphere populations, from 0.06 to 2 µm, in a single 1% aqueous suspension. It tests the resolution of particle sizers, for example laser diffraction instruments, in advanced operational qualification and size calibration, and helps determine the cut-off of filter media. The medium is formulated to prevent agglomerates and to remain stable over time. Certification covers d10, d50 and d90 or full traceability of the individual diameters.
Applications
- Resolution check of laser diffraction particle sizers
- Advanced operational qualification and size calibration
- Cut-off, filtration efficiency and loading capacity of filter media
- On request, mixtures mimicking oil in water for turbidity measurements instead of formazin
What you receive
Lot certificate with certified diameter or concentration, traceable to NIST and SI.
Import, customs and Italian invoice handled by VitaSan Labs, tracked shipping.
We help you choose diameter, concentration and format for your instrument and method.
Frequently asked questions
Are the standards traceable?
Yes: mean diameter, standard deviation and uncertainty are traceable to NIST and the International System of Units (SI) and stated on the certificate of every lot. The ISO/IEC 17025 series is certified by an accredited metrology laboratory.
Which control do I need for USP <788>?
For subvisible particle counting in injectables, use the PharmaCount controls: the USP <788> set for routine verification, the 3M and PC sets for single diameters. For USP <729> there is PharmaCount BiCal.
Can I order a diameter I do not see?
Yes: other diameters, concentrations and dyes are available on request. Tell us the value you need and we will send a quote.
How do I see the prices?
List prices per pack, excluding VAT, are shown after signing in to the customer area. With the quote request we confirm price, availability and delivery time.