BS 6395-1983 Method for numerical designation of fabric faults by visual inspection《目测织物疵点记数方法》.pdf

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1、BRITISH STANDARD BS 6395:1983 Method for Numerical designation of fabric faults by visual inspection UDC 677.019.1BS6395:1983 This British Standard, having been prepared under the direction of the Fibres, Yarns, Fabrics and Production Standards Committee, was published under the authority of the Boa

2、rd of BSI and comes into effect on 29July1983 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference FBM/11 Draft for comment 80/36458DC ISBN0580133842 Committees responsible for this British Standard The preparation of this British Standard was entrusted b

3、y the Fibres, Yarns, Fabrics and Production Standards Committee FBM/- to Technical Committee FBM/11 upon which the following bodies were represented: Association of British Launderers and Cleaners Ltd. Association of Retail Distributors British Clothing Industry Association British Textile Employers

4、 Association Central Council of the Irish Linen Industry Confederation of British Wool Textiles Ltd. Consumer Standards Advisory Committee of BSI Furnishing Fabrics Association Institute of Trading Standards Administration International Wool Secretariat Knitting Industries Federation Ltd. Man-made F

5、ibres Producers Committee Manchester Testing House Ministry of Defence Society of Dyers and Colourists Textile Distributors Association Textile Institute Textile Research Council The following body was also represented in the drafting of the standard, through subcommittees and panels: British Clothi

6、ng Industry Productivity and Technology Centre Amendments issued since publication Amd. No. Date of issue CommentsBS6395:1983 BSI 07-1999 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Definition 1 3 Principle 1 4 Sampling 1 5 Procedure and expression of results 1

7、6 Report 1 Publications referred to Inside back coverBS6395:1983 ii BSI 07-1999 Foreword This British Standard has been prepared under the direction of the Fibres, Yarns, Fabrics and Production Standards Committee. A variety of differing methods of assessing and expressing fabric faults is currently

8、 in use, and having reviewed these it was agreed that a single method which is applicable to a wide range of fabrics be published as a British Standard to improve communications. It is hoped that this will be viewed as provision of a common language between fabric producers and fabric users. This st

9、andard is intended to be used as a means for the numerical designation of fabric “quality” insofar as the occurrence of faults is concerned. The standard also allows the position of faults to be identified. No acceptable levels are given or suggested since these will depend on the end-use to which t

10、he fabric is to be put and should be agreed between the interested parties. The method is particularly useful for the comparison of similar fabrics for a specific end-use from different batches or sources. A British Standard does not purport to include all the necessary provisions of a contract. Use

11、rs of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1and2, an inside back cover and a b

12、ack cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.BS 6395:1983 BSI 07-1999 1 1 Scope This British Standard describes a method for the numerical designation of faults in finis

13、hed fabrics by visual inspection and gives a means of indicating the position of faults. NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 2 Definition For the purposes of this British Standard the following definition applies. fabric fault any feat

14、ure within the usable width of a fabric which, if it appeared in a finished product, would downgrade that product NOTEThis definition does not cover variations in length or width of fabrics which can be determined using BS1930 and BS1931. 3 Principle The fabric is examined visually for faults and po

15、ints are allocated depending on the dimensions and location of the faults. 4 Sampling If a system of sample inspection is required, the interested parties shall agree on AQL levels (seeBS6001). The pieces examined shall be identified. 5 Procedure and expression of results 5.1 Numerical designation o

16、f faults. The threshold limit for the minimum size of fault shall be agreed between the interested parties. Examine the face side of the fabric unless otherwise requested by the purchaser. Use of an inspection machine sufficiently wide to enable the fabric to be examined full width is acceptable. No

17、te the occurrence of any fabric faults (see clause 2) and assign numerical values to each fault, depending on the size of the fault in any direction as follows: from the agreed threshold limit up to 25cm in any direction: 1point; for every further 25cm or part thereof in any direction: add1 further

18、point. In assigning points, no more than 4pointsperm 2shall be allocated regardless of the number or size of individual faults, and no account shall be taken of a fault within 50cm on either side of an extended or running fault, or within 25cm of a1point fault. Record the frequency of full width cut

19、s and, subject to agreement, any other major fault. Record the length of the piece. Express the result as the number of points per100m 2 . 5.2 Indication of the position of faults. By agreement, if required, indicate the positions of faults by inserting strings, tags or markers at the selvedge of th

20、e piece subject to the following. a) Two or more faults on the same lateral axis shall be shown by one indicator only 1) . b) Two or more faults within 25cm on the longitudinal axis shall be shown by one indicator only 1) . 6 Report The report shall include the following particulars: a) the number o

21、f this British Standard, i.e.BS6395; b) the threshold limit for minimum fault size; c) the length of the piece; d) the fault rating in points per 100m 2 ; e) the number of full width cuts, and, if required, the number of any other major faults; f) if required, the number of faults of each point valu

22、e; g) if required, the number of strings per piece. 1) In some cases this means that the number of indicators per piece will be less than the number of faults per piece.2 blankBS6395:1983 BSI 07-1999 Publications referred to BS 1930, Methods for the determination of width of woven or knitted fabrics

23、 when relaxed at zero tension. BS 1931, Method for the determination of length of woven or knitted fabrics when relaxed at zero tension. BS 6001, Sampling procedures and tables for inspection by attributes. BS 6395:1983 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is t

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