1、BRITISH STANDARD BS 7033-2: 1989 Cleaning and polishing cloths Part 2: Specification for industrial wipers from reclaimed materials, and waste yarn for cleaning and lubricating purposes UDC 681.7.044.4:681.7.049:677.053.292.5:677.08:677.044.22:006.3/.8:001.4BS7033-2:1989 This British Standard, havin
2、g been prepared under the directionof the Textile and Clothing Standards Committee, was published under the authorityof the Board ofBSIandcomes into effect on 28 April1989 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference TCM/20 Draft for comment87/386
3、57DC ISBN 0 580 16971 5 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Textiles and Clothing Standards Committee (TCM/-) to Technical Committee TCM/20, upon which the following bodies were represented: Association of Heavy Textile Proof
4、ers of Great Britain Association of Jute Spinners and Manufacturers Flax and Linen Association (GB) Make-up Textiles Association Man-made Fibres Producers Committee Post Office Textile Research Council The following bodies were also represented in the drafting of the standard, through sub-committees
5、 and panels: British Nonwovens Manufacturers Association British Railways Board British Textile Employers Association Department of the Environment (The Crown Suppliers) Home and Contract Furnishing Textiles Association Janitorial Suppliers Association Ltd. London Regional Transport Ministry of Defe
6、nce Reclamation Association Wiping Cloth Manufacturers Association Amendments issued since publication Amd. No. Date of issue CommentsBS7033-2:1989 BSI 10-1999 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Definitions 1 3 Wipers 1 4 Waste yarn 1 5 Cleanliness 2 6
7、Sampling, conditioning and testing 3 7 Marking 3 Appendix A Determination of percentage light, medium and heavy wipers 4 Appendix B Supplementary information for MOD contracts 4 Table 1 Requirements for wipers 2 Table 2 Requirements for waste yarn 2 Table 3 Cross-references of item reference from th
8、is Part of BS7033 to NATO stock number and MOD description and pattern number 4 Publications referred to Inside back coverBS7033-2:1989 ii BSI 10-1999 Foreword This Part of BS7033 has been prepared under the direction of the Textiles and Clothing Standards Committee. A wide range of cleaning and pol
9、ishing cloths is in use for different applications. BS7033 specifies requirements for a limited range of cloths suitable for cleaning and polishing applications and is being published in five Parts as follows: Part 1: Specification for optical polishing cloths for use on transparent plastics panels;
10、 Part 2: Specification for industrial wipers from reclaimed materials, and waste yarn for cleaning and lubricating purposes; Part 3: Specification for floorcloths and dishcloths; Part 4: Specification for window cleaning cloths 1) ; Part 5: Specification for general polishing cloths 1) . In this Par
11、t requirements are specified for wipers made from reclaimed materials used for general industrial wiping purposes and for cellulosic waste yarn used for cleaning purposes and in the lubrication of bearings. Many properties cannot be specified objectively and cannot therefore be included in this stan
12、dard. Examples of such properties include colour, handle, appearance and details of additional design features. Public sector purchasing authorities may be able to supply standard patterns which cover these properties and serve to resolve any ambiguities of description. The standard only covers the
13、basic description of the products and their construction and performance requirements. Purchasing authorities therefore may need to include additional information. Appendix A gives a method for measuring the percentage of light, medium and heavy wipers in a batch. Supplementary information for MOD c
14、ontracts is provided in Appendix B with cross-reference information between the following: a) item references used in this Part of BS7033; b) NATO stock numbers; c) MOD descriptions and pattern numbers. A British Standard does not purport to include all the necessary provisions of a contract. Users
15、of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. In particular, attention is drawn to Statutory Instrument1986 No.26, the Textile Products (Indications of Fibre Content) Regulations1986.
16、Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to4, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside fr
17、ont cover. 1) In preparation.BS7033-2:1989 BSI 10-1999 1 1 Scope This Part of BS7033 specifies requirements for industrial wipers reclaimed from manufactured sources and used for general industrial wiping purposes, and white and coloured cellulosic waste yarn, reclaimed from manufactured sources and
18、 used for cleaning purposes. Also included are requirements for white cellulosic waste yarn, reclaimed from manufactured sources and used in the lubrication of bearings. NOTE 1Supplementary information for MOD contracts is provided in Appendix B. NOTE 2The titles of the publications referred to in t
19、his standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS7033 the following definitions apply. 2.1 batch a definite quantity of some commodity manufactured or produced under conditions which are presumed uniform 2.2 industrial wiper 2) a cloth suitable for t
20、he removal of oil, grease, solvents, water, and/or swarf on machinery, or for similar industrial applications 2.3 thrum a length of waste warp yarn and/or fabric formed during the preparation of a loom 2.4 waste yarn cellulosic thrums and winders suitable either for cleaning, i.e.the removal of oil,
21、 grease, solvents, water and/or swarf on machinery, and for similar industrial applications or for lubrication, i.e.the transfer of oil from a reservoir to a bearing surface 2.5 white term referring to materials which have not been dyed 2.6 winders waste yarn left on bobbins after yarn has gone thro
22、ugh the winding process 3 Wipers 3.1 General Wipers shall comply with the requirements of Table 1 when tested by the methods given therein. 3.2 Source Wipers shall comply with the following requirements. a) All wipers shall be derived from such sources as discarded garments, domestic fabrics and rem
23、nants of new fabrics. NOTEWhere wipers have been cut from whole garments the latter should have been cut and opened to produce flat panels. Pockets should have been completely opened by cutting. b) The white cotton wipers of references W1 and W2 shall not include cloths which have had colour strippe
24、d from them, or which have become tinted with colour from other cloths. NOTEExamples of such woven cotton fabrics are sheets, table linen and towels. c) Wipers shall contain no seams consisting of more than three thicknesses of fabric. d) Wipers shall be free from buttons, fittings, stiffeners and t
25、he contents of pockets. e) Wipers shall be free from metals, plastics and other potentially abrasive or electrically conductive materials. 3.3 Area The area of each wiper shall be not less than1000cm 2 . 3.4 Width The width of each wiper shall be not less than25cm at any point. 3.5 Mass per unit are
26、a The mass per unit area shall be as follows: a) for lightweight wipers, greater than70g/m 2but not exceeding200g/m 2 ; b) for medium-weight wipers, greater than200g/m 2but not exceeding300g/m 2 ; c) for heavy-weight wipers, greater than300g/m 2 . 4 Waste yarn Waste yarn shall be free from hard or s
27、harp pieces of foreign matter and shall not be loaded by the addition of lime, china clay or other foreign matter with the exception of size. NOTEThe waste yarn should be clean, soft and evenly opened and it should be free from short yarns, i.e.yarns of such short length as to cause excessive lintin
28、g. 2) Hereinafter referred to as wiper.BS7033-2:1989 2 BSI 10-1999 5 Cleanliness 5.1 General Wipers and waste yarn shall comply with the appropriate requirements of Table 1 and Table 2 for total extractable matter and moisture content. 5.2 Washing and disinfecting of wipers Wipers that do not comply
29、 with5.1 for cleanliness shall be washed, in an aqueous solution containing detergent and a disinfecting agent, for a minimum period of10min at a minimum temperature of95 C. The wipers shall be rinsed in clean water to remove the washing agents and shall be dried after washing and rinsing so that th
30、e moisture content does not exceed the amount shown in Table 1. Table 1 Requirements for wipers Table 2 Requirements for waste yarn Reference Description Percentage by mass in indicated category in a delivered batch Moisture content max. Cellulosic fibre content abmin. Extractable matter max. Water
31、soluble chloride content max. Light min. Medium min. Heavy min. W1 W2 W3 W4 W5 W6 W7 Wiper, woven cotton, white, special grade Wiper, cotton, white, special grade Wiper, cellulosic, white, special grade Wiper, cellulosic, white, normal grade Wiper, cellulosic, coloured, special grade Wiper, cellulos
32、ic, coloured, normal grade Wiper, cellulosic, coloured, denim % 100 100 100 75 90 75 % 25 10 25 25 % 75 % 10 10 10 10 10 10 10 % 100 100 95 95 95 75 95 % 2.0 2.0 2.0 2.0 2.0 2.0 2.0 % 0.03 0.03 0.03 0.03 0.03 0.03 0.03 Test method Appendix A BS4784-1 BS4407 Appendix D of BS1425:1960 8.1.2 of BS3266:
33、1981 a Expressed as a percentage of the total clean dry mass. b In the case of references W1 and W2, only cotton fibre shall be used. In the case of references W3 to W7 cellulosic fibre other than cotton may be used. Reference Description Moisture content Dichloromethane extractable matter Cellulosi
34、c fibre content Water extractable matter End use max. max. min. min. max. WY1 WY2 WY3 Waste yarn, cellulosic, white Waste yarn, cellulosic, coloured Lubricating yarn, cellulosic, white % 9 9 9 % 2 2 % 95 95 95 % 6 % 10 Cleaning Cleaning Lubricating Test method BS4784 BS3477 BS4407 BS3266BS7033-2:198
35、9 BSI 10-1999 3 6 Sampling, conditioning and testing 6.1 Sampling A representative sample shall be taken from each batch of up to5t. The sample shall be drawn in small quantities of approximately500g from different sections of the batch to give a total sample of approximately3kg. For the purposes of
36、 moisture content determination, a representative sub-sample of approximately25g shall be placed in an airtight container immediately after selection. A further representative sub-sample shall be drawn from the sample for the determination of cleanliness. 6.2 Conditioning of specimens Specimens shal
37、l be conditioned for a minimum of24h and tested in the standard temperate atmosphere for testing textiles as defined in BS1051, i.e.a relative humidity (r.h.) of652% and a temperature of20 2 C. In the event of dispute, samples shall be preconditioned for4h in a relative humidity not exceeding10% at
38、a temperature not greater than50 C before being exposed to the standard temperate atmosphere for testing of textiles. 6.3 Testing 6.3.1 Wipers. Samples of wipers taken in accordance with6.1 shall be tested for compliance with Table 1 and clause3. All the tests shall be carried out on each sample. 6.
39、3.2 Waste yarn. Samples of yarn taken in accordance with6.1 shall be tested for compliance with the appropriate requirements of Table 2 and clause4. All the tests shall be carried out on each sample. 7 Marking Each package shall bear the following information: a) the name, trademark, or other means
40、of identification of the manufacturer; b) the number and date of this British Standard, i.e.BS7033-2:1989 3)and the appropriate item reference for the wiper or waste yarn; c) the month and year of manufacture; d) the net mass in the case of waste yarn, calculated in accordance with BS4784-1 with the
41、 moisture allowance as given in Table 1. NOTEIn addition, each package should bear such markings as the contract or order may direct. 3) Marking BS7033-2:1989 on or in relation to a product represents a manufacturers declaration of conformity, i.e.a claim by or on behalf of the manufacturer that the
42、 product meets the requirements of the standard. The accuracy of the claim is therefore solely the responsibility of the person making the claim. Such a declaration is not to be confused with third party certification of conformity, which may also be desirable.BS7033-2:1989 4 BSI 10-1999 Appendix A
43、Determination of percentage light, medium and heavy wipers From the representative sample as defined in6.1 randomly select a sub-sample of20wipers. Determine the mass of each wiper in accordance with method5 of BS2471 except that a complete wiper shall be weighed as opposed to a15cm 15cm sample. Cal
44、culate the total mass of the20wipers. Determine the mass per unit area of each wiper in accordance with method5 of BS2471 except that one sample only shall be taken from each wiper. Categorize the wipers in terms of light, medium and heavy as defined in3.5 of this Part of BS7033 and calculate the to
45、tal mass in each category. Express the total mass in each category as a percentage of the total mass of the sub-sample of20wipers. Appendix B Supplementary information for MOD contracts B.1 Marking In addition to the marking requirements specified in clause7, the following particulars are to be incl
46、uded where applicable: a) the contract number; b) the item name and description; c) the NATO stock number. B.2 Item reference cross-reference Table 3 contains cross-reference information between the following: a) the item references used in this Part of this standard; b) the NATO stock numbers; c) t
47、he MOD descriptions and pattern numbers. Table 3 Cross-references of item reference from this Part of BS7033 to NATO stock numberand MOD description and pattern number Reference NATO stock no. Description Pattern no. W1 W5 W6 WY1 WY2 7920-99-130-4875 7920-99-977-2533 7920-99-977-2534 8305-99-139-944
48、1 8305-99-139-9442 Wiper, cotton, white, special grade Wiper, cellulosic, coloured, special grade Wiper, cellulosic, coloured, normal grade Waste yarn, cellulosic, white Waste yarn, cellulosic, coloured 8604 8605BS7033-2:1989 BSI 10-1999 Publications referred to BS 1051, Glossary of terms relating t
49、o the conditioning, testing and mass determination of textiles. BS 1425, Specification for cleanliness of fillings and stuffings for bedding, upholstery, toys and other domestic articles. BS 2471, Methods of test for textiles Woven fabrics Determination of mass per unit length and mass per unit area. BS 3266, Methods of test for determination of conductivity, pH, water-soluble matter, chloride and sulphate in aqueous extracts of textile materials. BS 3477, Method for the determination of oils, fats and
