The Importance of the CVD (or SD) of Fibre Diameter in Selecting Tops

Abstract

The introduction of the newer technologies, Laserscan and OFDA, have brought with them a requirement to have the Projection Microscope measurements (both Mean and Coefficient of Variation or Standard Deviation) made available for calibration.

It was proposed that the Projection Microscope Means be used for calibrating the Airflow Instruments. This will only work if the Mean Fibre Diameter measured by the Projection Microscope and Airflow are the same.

This report examines the importance of the Coefficient of Variation or Standard Deviation of Fibre Diameter in selecting calibration tops.

It makes a number of recommendations to Interwoollabs regarding the preparation of Calibration Tops

Citation

"The Importance of the Coefficient of Variation (or Standard Deviation) of Fibre Diameter in Selecting Calibration Tops", J.W. Marler, Report to the Interwoollabs Management Committee, 1998