Fibre Diameter). For theLASERSCAN instrument (IWTO-12) the 95% Confidence Limits for Mean Fibre Diameter (MFD) of greasy cores are expressed in 5 micron increments as follows: MFD 95% CL 15.0 20.0 25.0 30.0 35.0 40.0 +/- 0.21 +/- 0.35 +/- 0.48 +/- 0.60...