Powder MicroStandards™
Powder MicroStandards™ are Dry Particle Size Standards designed for particle sizing and counting instruments that can only be calibrated using dry particles. These Powder Particle Standards are available in the 3 to 220 μm size range and are intended for calibration and validation of dry particle measurement systems.
Powder MicroStandards™ particles are composed of cross-linked polystyrene and have a density of 1.05 g/cm³ with a refractive index of 1.59 @ 589 nm. They are less suitable for redispersion in aqueous media, making them ideal Dry Particle Size Standards for applications requiring dry particle calibration.
The certified mean particle diameter is traceable to the International System of Units (SI) and NIST, providing reliable Particle Measurement Standards for laboratory calibration. Traceability is achieved through particle size standards certified by ISO 17025 accredited metrology institutes and NIST Standard Reference Materials, ensuring confidence in measurement accuracy and repeatability.
Applications and Usage
| ✔ Calibration of dry particle sizing instruments | ✔ Performance verification of instruments using dry particle standards |
| ✔ Calibration of dry particle counting instruments | ✔ Validation of air-particle counting instruments in accordance with ISO 21501-4 |
| ✔ Validation of particle sizing and counting systems | ✔ Quality control and routine instrument performance checks |
| Parameter | Specification |
|---|---|
| Series | 3M |
| Nominal Diameter Range | 2 µm – 100 µm |
| Available Sizes | 2, 5, 10, 15, 20, 25, 30, 40, 50, 70, 100 µm |
| Nominal Count Rate | 3000 particles/mL |
| Set Content | 6 particle suspensions |
| Volume | 25 mL each |
| Application | Calibration and validation of particle counters |
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Frequently Asked Questions
What are PharmaCounts™ Traceable Particle Count Controls?
They are SI-traceable particle suspensions used for Liquid Particle Counter Calibration and Liquid Particle Counter Validation in pharmaceutical quality control laboratories.
Why is Liquid Particle Counter Calibration important?
It ensures accurate particle counting, reliable instrument performance and regulatory compliance.
How do PharmaCounts™ support GMP Instrument Validation?
They provide Traceable Particle Standards for calibration, verification and documented validation records.
Can PharmaCounts™ be used for USP Particle Testing and EP Particle Testing?
Yes. They are designed to support both USP Particle Testing and EP Particle Testing for pharmacopoeial compliance.
What are Traceable Particle Standards?
Certified reference materials with documented traceability used to ensure accurate calibration and validation.
Which industries use PharmaCounts™ Traceable Particle Count Controls?
Pharmaceutical manufacturers, biotechnology companies, research laboratories and quality control laboratories.