LimsPulse
Construction materials testing

Blaine Air Permeability Apparatus

Measures the fineness of cement as specific surface area (m²/kg) by timing how long a fixed volume of air takes to pass through a compacted bed of cement.

  • Cement manufacturing
  • Construction materials testing
  • Fly ash and slag suppliers
  • Academic labs
Illustration of Blaine Air Permeability Apparatus
CALIBRATION

Blaine calibration procedures

Apparatus constant with reference cement

Determines the bed volume and the apparatus constant K of a Blaine cell–manometer pair by testing a reference cement of certified specific surface.

Open procedure
QUALIFICATION

Instrument qualification (DQ · IQ · OQ · PQ)

  1. 01

    DQ — Design qualification

    Specifies a cell, plunger and manometer conforming to IS 4031 Part 2 / ASTM C204, and whether an automatic timer is needed.

  2. 02

    IQ — Installation qualification

    Records serial numbers, checks the manometer is vertical and filled correctly, and confirms dimension certificates.

  3. 03

    OQ — Operational qualification

    Determines bed volume and apparatus constant with a reference cement and checks the system for leaks.

  4. 04

    PQ — Performance qualification

    Tests a control cement regularly and trends the result, and takes part in proficiency testing.

In LimsPulse · Calibration Management

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

See how