1、BRITISH STANDARD BS5223-4: 1976 Hospital bedding Part4: Mattress covers of polyurethane coated nylon UDC615.478.266:645.476:677.494.675:678.664.026.3BS 5223-4:1976 This British Standard, having been prepared under the directionof the Cotton StandardsCommittee, was published under the authority ofthe
2、 Executive Board on 30 April 1976 BSI 06-1999 The following BSI references relate to the work on this standard: Committee reference COT/5 Draft for comment 74/35552 DC ISBN 0 580 09470 7 Co-operating organizations The Cotton Standards Committee, under whose supervision this standard was prepared, co
3、nsists of representatives from the following Government departments and scientific and industrial organizations: British Launderers Research Association British Textile Employers Association Department of Health and Social Security Department of Industry Dyers and Cleaners Research Organization Furn
4、ishing Fabrics Federation Handkerchief Manufacturers Group Ministry of Defence Society of Dyers and Colourists Textile Converters Association Textile Exporters Committee of Manchester Chamber of Commerce Textile Institute Textile Research Council* The scientific organization marked with an asterisk
5、in the above list, together with the following, were directly represented on the Committee entrusted with the preparation of this British Standard: British Man-made Fibres Federation Consumer Standards Advisory Committee of BSI Manchester Chamber of Commerce National Bedding Federation Individual ma
6、nufacturers Amendments issued since publication Amd. No. Date of issue CommentsBS5223-4:1976 BSI 06-1999 i Contents Page Co-operating organizations Inside front cover Foreword ii 1 Scope 1 2 References 1 3 Materials 1 4 Dimensions of finished mattress covers 1 5 Manufacture 1 6 Seams and stitchings
7、1 7 Condition 2 8 Marking 2 Figure 1 Slide fastener insertion 2 Figure 2 Formation of corner 2 Table 1 Dimensions of spring interior mattresses 1 Table 2 Dimensions of flexible polyurethane foam mattresses 2 Publications referred to Inside back coverBS 5223-4:1976 ii BSI 06-1999 Foreword This Part o
8、f BS5223 is one of four based on a series of specifications of the Department of Health and Social Security. The other three parts are: Part 1: Adult size spring interior mattresses; Part 2: Flexible polyurethane mattress cores 1) ; Part 3: Flexible polyurethane pillows 1) ; The first three Parts we
9、re prepared under the authority of the Bedding Standards Committee; this Part was prepared under the authority of the Cotton Standards Committee. Polyurethane coated nylon fabric has applications additional to those in the hospital sphere and is dealt with in a separate standard, BS . . . . “Polyure
10、thane coated nylon fabric” 1) . This Part gives metric sizes directly linked to the mattress sizes given in Parts1 and2 but other widely varying sizes that are likely to be in use for some time may be required. This standard does not include requirements for flammability of the mattress cover. The r
11、eason is that, taking account of other items used with the cover (i.e.mattress core, sheets, blankets and counterpane) that represent the fuel load, research has shown that a cover made from flame-retardant fabric does not necessarily reduce the hazard, nor is there at present an inherently flame-re
12、tardant material which meets the requirements of this standard. Use of a tight fit and slide fastener as specified may, however, help to reduce the hazard by excluding air from the space between the cover and the mattress. Certification. Attention is drawn to the certification facilities described o
13、n the inside back cover of this standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.
14、 Summary of page This document comprises a front cover, an inside front cover, pagesi and ii, pages1 and 2, 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
15、 front cover. 1) In course of preparationBS5223-4:1976 BSI 06-1999 1 1 Scope This Part of this British Standard specifies materials, dimensions and certain constructional requirements for mattress covers manufactured from polyurethane coated nylon fabric. It applies to covers for spring interior and
16、 polyurethane foam mattresses for use by government departments and local authorities. 2 References The titles of the British Standards referred to in this standard are given on the inside back cover. 3 Materials 3.1 Fabric. The fabric shall be polyurethane coated nylon complying with the requiremen
17、ts of BS . . . . 2) , and shall be printed as required by that standard for hospital use. 3.2 Slide fastener. The slide fastener shall be a medium type comprising a white polyester spiral chain of6mm nominal width, with stringers14mm wide and a single pin-locking diecast slider and puller. The faste
18、ner shall comply with the requirements of BS3084 for a medium fastener relating to security of attachment of puller, reciprocating movement of slider and resistance to lateral load. 3.3 Tape. The tape shall be medium quality woven cotton of type BS1625/15 as specified in BS1625-6 and BS4830:1972. 3.
19、4 Sewing thread. A white polyester core/cotton sheath sewing thread of resultant linear density R40 tex with a minimum breaking strength of16N shall be used. The breaking strength shall be determined using the CRT method given in BS1932-1:1965. 3.5 Label. The label shall be as approved between purch
20、aser and manufacturer. 4 Dimensions of finished mattress covers The dimensions of the mattress covers for spring interior mattresses shall be the same as the dimensions of the mattress (as given in Table 1). These dimensions shall be subject to a tolerance of 1.0,+0cm in length and width and 0.5,+0c
21、m in depth. The dimensions of the mattress covers for foam mattresses shall be 1cm less in length and width than the dimensions of the mattress (as given in Table 2) in order to give a “stretch fit”. The dimensions thus calculated shall be subject to a tolerance of 1.0,+0cm in length and depth and 0
22、.5, + 0cm in width and depth. Length and width shall be measured along the seams. Width and depth shall be measured together from seam to seam across the mattress. 5 Manufacture 5.1 Cover. The cover shall be made from two pieces of the fabric with the coated side outside. They shall be joined so tha
23、t the seam runs around the centre of the sides; on one long side and10cm of each adjoining side a slide fastener shall be inserted and the remaining fabric shall be joined by a seam (seeFigure 1). Table 1 Dimensions of spring interior mattresses 5.2 Corners. The corners shall be formed by turning ba
24、ck the excess fabric to a flap which shall be cut to finish1cm wide. Closure of the corners shall be either under or over the side seam seeFigure 2(a) andFigure 2(b). 5.3 Slide fastener (insertion). The fastener shall be inserted in the cover with the stringers securely sewn1cm beyond the beginning
25、of the opening at each end. The fastener shall be attached with a row of machine stitching in each stringer. The stitching shall be approximately0.2cm in from the spirals. 5.4 Tab. A tab of double self-material5cm long by2cm wide with the edges turned in, or of tape15mm wide (see3.3), shall be sewn
26、on the cover at each end of the slide fastener (seeFigure 1). 6 Seams and stitchings 6.1 Seams. Seams shall be type SSa-1 of BS3870 with a minimum width of1cm. 6.2 Stitching. Machine stitching shall be stitch type301 of BS3870 with at least4 but not more than5 stitches per centimetre. All sewings sh
27、all be evenly tensioned and securely and neatly fastened off. 2) In course of preparation. Length (cm) 188 196 203 Width (cm) 76 86 91 86 91 86 91 Peripheral Depth (cm) 11 11 11BS 5223-4:1976 2 BSI 06-1999 7 Condition The covers shall be delivered in a clean and undamaged condition, with no permanen
28、t creasing. All loose ends of sewing threads shall be removed. 8 Marking A mutually agreed label shall be attached in the centre near the slide fastener opening and shall be clearly marked, in indelible ink complying with BS2726, with the following: a) the type of mattress the cover is to fit (i.e.s
29、pring interior or polyurethane foam), b) the dimensions of the mattress the cover is to fit, c) the contractors name or initials or recognized trademark, d) the year of manufacture, e) the number of this British Standard, f) if appropriate, the method of sterilization and disinfection (seeBS. . . .
30、3) ). Table 2 Dimensions of flexible polyurethanefoam mattresses 3) In course of preparation. Figure 1 Slide fastener insertion Mattresses for Length (cm) Width (cm) Depth (cm) Adult spring base beds and cots 188 196 76; 86; 91 86; 91 10; 13 Adult rigid base beds and cots 196 86 13; 15 Childrens bed
31、s 158 74 10 Childrens cots 145; 130 114 74 58 10 Maternity cribs 69 33 8 Figure 2 Formation of cornerBS5223-4:1976 BSI 06-1999 Publications referred to This standard makes reference to the following British Standards: BS1625-6 and BS 4830, Woven cotton tapes, light, medium and heavy qualities. BS193
32、2, Methods of testing the strength of yarn from packages. BS1932-1, Determination of breaking load and extension. BS2726, Marking inks for stock purposes. BS3084, Metallic slide fasteners. BS3870, Schedule of stitches, seams and stitchings. BS . . . ., Polyurethane coated nylon (in course of prepara
33、tion). BSI Certification Trade Mark The Kitemark The Kitemark is the registered certification trade mark of the British Standards Institution. A licence to use the Kitemark on or in relation to a product will be granted to any manufacturer or producer who demonstrates that he can and will be able co
34、nsistently to make that product to a specified British Standard. His capability of doing so is initially assessed by inspection of his production process, quality control organization and test facilities, and by independent testing of a sample of the product against all the criteria of the relevant
35、standard. The licensee is required to accept, and to operate in accordance with, a BSI scheme of supervision and control which identifies the tests to be carried out during manufacture and on the completed product, and specifies the frequency of such testing. BSI carries out unannounced inspection v
36、isits to the manufacturers works and audit testing of the product, and may withdraw the licence for any failure of the manufacturer to comply with the relevant standard or with the requirements of the scheme of supervision and control. The presence of the Kitemark on or in relation to a product is a
37、n assurance that the goods have been produced under a system of supervision, control and testing, operated during manufacture and including periodical inspection of the manufacturers works in accordance with the certification mark scheme of BSI.BS5223-4:1976 BSI 389 Chiswick High Road London W4 4AL
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