LimsPulse
Particle & solid-state

Laser Diffraction Particle Size Analyser

Measures the particle size distribution of powders, suspensions and emulsions from the pattern of laser light scattered by the particles. Reports D10, D50 and D90 within a minute or two.

  • Pharmaceutical
  • Biotech
  • Chemicals
  • Cosmetics
  • Food & beverage
  • Mining and cement
Photo of a Laser Diffraction Particle Size Analyser
Photo: Plogeo, CC BY-SA 4.0 (cropped), via Wikimedia Commons
CALIBRATION

Laser diffraction PSA calibration procedures

Certified reference material check

Measures a certified reference material (CRM) of known size distribution and checks that the D10, D50 and D90 results agree with the certificate.

Open procedure
QUALIFICATION

Instrument qualification (DQ · IQ · OQ · PQ)

  1. 01

    DQ — Design qualification

    Defines the size range, dry and/or wet dispersion, software compliance (audit trail, electronic records) and throughput needed, and confirms the chosen model meets them.

  2. 02

    IQ — Installation qualification

    Verifies delivery, utilities (compressed air, vacuum, drain), software installation and documentation.

  3. 03

    OQ — Operational qualification

    Tests laser power, alignment, background and size accuracy and repeatability with a certified reference material.

  4. 04

    PQ — Performance qualification

    Shows the instrument gives consistent results on the lab's own methods, for example by repeat analysis of a control sample over time.

In LimsPulse · Calibration Management

Keep every Laser diffraction PSA in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how