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BS 4044:1989

BS 4044:1989

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The latest, up-to-date edition.

Methods for determination of fibre length by comb sorter diagram

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-31-1990

Publisher

British Standards Institution

Foreword
Committees responsible
Methods
Section one. General
1 Scope
2 Definitions
3 Atmosphere for conditioning and testing
Section two. Method A. Determination of fibre length
                of cotton, waste silk and uncrimped
                staple fibres
4 General
5 Principle
6 Apparatus
7 Test specimens
8 Procedure
9 Calculation and expression of results
10 Test report
Section three. Method B. Determination of fibre length
                (barbe and hauteur) of twistless combed
                slivers and prepared rovings of a type
                used in the woollen and worsted systems
11 Principle
12 Apparatus
13 Test specimens
14 Procedure
15 Calculation and expression of results
16 Test report
Tables
1 Example of fibre length distribution
2 Example of presentation of results for fibre length
    distribution test
Figure
1 Example of comb sorter diagram

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.

This British Standard describes methods for determination of fibre length by the use of a comb sorter diagram. The following two procedures are described.

  1. Method A is applicable to samples composed of individual fibres, particularly to samples of cotton fibres, and to samples of waste silk and uncrimped staple fibres having a fibre length of approximately 50 mm.

    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.

  2. Method B is applicable to twistless combed slivers and prepared rovings of a type used in the woollen and worsted systems.

Committee
TCI/100
DevelopmentNote
Supersedes 87/43791 DC, 87/43793 DC and BS 4044(1966) (07/2005) Reviewed and confirmed by BSI, October 2012. (09/2012)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

BS F 137:1989 Specification for warp knitted cotton polishing and polish application cloths for aircraft transparencies
BS 4F 57:1990 Specification for scoured cotton fabric for inflatable equipment for aerospace purposes

BS 1051:1981 Glossary of terms relating to the conditioning, testing and mass determination of textiles
ISO 920:1976 Wool — Determination of fibre length (barbe and hauteur) using a comb sorter
BS 2545:1965 Methods of fibre sampling for testing

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Hardcopy - English
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