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Methods for determination of fibre length by comb sorter diagram
This British Standard describes methods for determination of fibre length by the use of a comb sorter diagram.
The following two procedures are described:
NOTE 1: For longer types of waste silk and staple fibre, the technique for arranging the test specimen in the form of a continuous sorter diagram becomes progressively more difficult. Only specially skilled operators can make satisfactory sorter diagrams on samples containing many fibres of 100 mm or more in length. Moreover, the time required to make a test increases steadily with increasing fibre length of sample.
Two procedures.
Method A is applicable to cotton and other uncrimped staple fibres.
Method B is applicable to twistless combed slivers and prepared rovings in the wollen and worsted systems.
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