CAN/CGSB-4.2 No. 73.2-M91/ ISO 2648: 1974 (R2013)

This National Standard of Canada is equivalent to International Standard ISO 2648:1974. This International Standard specifies a method for the determination of fibre length distribution parameters, principally mean length and the coefficient of variation of length, for all-wool slivers and rovings. The method is not directly applicable to slivers made up of a blend of two or more fibres. Selection of the test specimen is effected using an auxiliary machine, called "mechanical grip"; it may be used on top sliver, on worsted drawing slivers and rovings, and on slivers from the semi-worsted system.