1、BRITISH STANDARD BS EN 766:1994 Sacks for the transport of food aid Sacksmade of jute fabric The European Standard EN 766:1994 has the status of a British Standard UDC 621.798.151-037.13:663/664:620.1BSEN766:1994 This British Standard, having been prepared under the directionof the Packaging and Fre
2、ight Containers Standards Policy Committee, was publishedunder the authority ofthe Standards Board and comesinto effect 15September1994 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference PKM/11 Draft for comment 92/42245 DC ISBN 0 580 22788 X Cooperatin
3、g organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk S
4、tandard Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale I
5、taliano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Swit
6、zerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN766:1994 BSI 11-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 766 3 National annex NA
7、(informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN766:1994 ii BSI 11-1999 National foreword This British Standard has been prepared under the direction of the Packaging and Freight Containers Standards Policy Committee and is
8、 the English language version of EN 766:1994 Sacks for the transport of food aid Sacks made of jute fabric, published by the European Committee for Standardization (CEN). A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are respons
9、ible 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, theEN title page, pages2to6, an inside back cover and a back cover. This st
10、andard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 766 May 1994 UDC 621.798.151-037.13:663/664:620.1 Descriptors: Packing, bags, textile pa
11、ckaging, sackcloth, jute, food products, capacity, characteristics, tests English version Sacks for the transport of food aid Sacks made of jute fabric Sacs pour le transport de laide alimentaire Sacs faits en toile de jute Scke fr den Transport von Lebensmitteln frdie Nahrungsmittelhilfe Scke aus J
12、utegeweben This European Standard was approved by CEN on 1994-05-12. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographic
13、al references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN m
14、ember into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, S
15、weden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN 766:1994 EEN766:1994 BSI 11-1999 2 Foreword This
16、 European Standard was drawn up by CEN Technical Committee CEN/TC120, Sacks for the transport of food aid, the secretariat of which is held by NNI. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports e
17、ssential requirements of EC Directive(s). The European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November1994, and conflicting national standards shall be withdrawn at the latest by November1994. In accor
18、dance with the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Cont
19、ents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 General characteristics 3 5 Test methods and test requirements 4 6 Marking 4 7 Test report 5EN766:1994 BSI 11-1999 3 1 Scope This European Standard specifies the general characteristics, requirements and methods of test for sa
20、cks made of jute fabric. This European Standard is applicable to sacks made of jute fabric, having a filling mass up to50kg, intended for the transport of food aid. 2 Normative references This European Standard incorporates by dated and undated reference, provisions from other publications. These no
21、rmative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references subsequent amendments to, or revisions of, any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated r
22、eferences the latest edition of the publication referred to applies. EN 765:1994, Sacks for the transport of food aid Sacks made of woven polyolefin fabric other than polypropylene only. prEN 1086:1993, Sacks for the transport of food aid Recommendations on the selection of type of sack and the line
23、r in relation to the product to be packed. EN 22206:1992, Packaging Complete, filled transport packages Identification of parts when testing. (ISO 2206:1987) EN 22233:1992, Packaging Complete, filled transport packages Conditioning for testing. (ISO2233:1986) EN 26590-1:1992, Packaging Sacks Vocabul
24、ary and types Part 1: Paper sacks. (ISO6590-1:1983) EN 26590-2:1992, Packaging Sacks Vocabulary and types Part2: Sacks made from thermoplastic flexible film. (ISO6950-2:1983) EN 26591-2:1992, Packaging Sacks Description and method of measurement Part2:Empty sacks made from thermoplastic flexible fil
25、m. (ISO6591-2:1985) EN 27023:1992, Packaging Sacks Method of sampling empty sacks for testing. (ISO 7023:1983) EN 27965-1:1992, Packaging Sacks Drop test Part1: Paper sacks. (ISO 7965-1:1984) ISO 3676:1983, Packaging Unit load sizes Dimensions. 3 Definitions For the purpose of this standard, the fol
26、lowing definitions apply: NOTEOther terms used in the manufacture of sacks are defined in EN26590-1 for paper sacks and in EN26590-2 for sacks made of thermoplastic flexible film. Most of these terms can also be applied to sacks made of jute fabric. 3.1 jute sack a container made of jute fabric, clo
27、sed at least at one end, possibly in combination with other flexible materials used for the liner, to provide the properties required for filling and the goods distribution chain NOTEHereafter where the word “sack” is used in the text of this European Standard, a sack made of jute fabric is to be un
28、derstood. 3.2 ply a tissue of jute fabric, forming the walls of a sack 3.3 gusset a fold inserted in the longitudinal edge of a sack 4 General characteristics 4.1 Construction 4.1.1 The sacks shall be made of jute fabric. 4.1.2 The sack shall be made of one ply or more plies and may be equipped with
29、 a liner in accordance with prEN1086. 4.1.3 The sack may be flat or gusseted. 4.1.4 The empty sack, laid flat, shall have a rectangular shape. 4.1.5 The closure of the filled sack shall be designed to prevent leakage of the product during transport. 4.1.6 Materials other than natural materials used
30、in the manufacture and closure of the sack (inner liner excluded) shall have a UV-resistance in accordance with5.7.3 of EN765:1994. These materials can be tested in the construction in which they are used in the sack. 4.2 Dimensions 4.2.1 The dimensions of the empty sack shall be chosen so that, if
31、necessary, after filling the dimensions of the filled sack comply with the dimensions of the unit load as specified in ISO3676. 4.2.2 The dimensional tolerances of the sack should be agreed upon between the purchaser and the supplier.EN766:1994 4 BSI 11-1999 4.2.3 The dimensions and the dimensional
32、tolerances of the sack shall be recorded in the ordering documents. 4.2.4 The description of the dimensions, the method of measuring the dimensions and the dimensional designation of the sack shall be in accordance with EN26591-2. NOTEThough EN 26591-2 is valid for sacks made of thermoplastic flexib
33、le film it can be applied to sacks made of jute fabric. However for some forms of sacks made of jute fabric EN26591-2 cannot be applied. A third part of ISO6591 will be prepared by ISO/TC122/SC2, Packaging sacks. This third part will deal with sacks made of woven fabric. 4.3 Food compatibility Sacks
34、 which come in contact with foodstuffs shall meet the legal requirements of the CEN member states which are applicable to them. NOTESpecial attention should be paid when mineral batching oils have been used for the production of the jute. 5 Test methods and test requirements 5.1 Sampling 5.1.1 The s
35、ampling shall be done in accordance with EN 27023. NOTETable 1 of EN 27023:1992 refers to the selection of units. Table2 of EN27023:1992 refers to the selection of sacks out of each selected unit. 5.1.2 The sampling shall be done on the date the empty sacks are ready for dispatch by the supplier. 5.
36、1.3 If resampling is necessary it shall be done in accordance with EN27023. If, as a result of an accident during sampling or testing, resampling is necessary, a new sample shall be taken following the procedure specified in EN27023. Selection may then, however, be made from the same units as before
37、 unless agreed otherwise. If, for any other reason, resampling is necessary, the procedure followed shall follow the specifications of EN27023 as closely as possible. 5.2 Conditioning 5.2.1 Before testing all samples shall be conditionedin accordance with EN22233:1992 condition G (temperature+23 C 2
38、 C, relative humidity50% 5%). 5.2.2 The minimum period of conditioning of the samples shall be not less than8h. 5.2.3 The various tests as described shall be carried out in the same atmospheric conditions as used for conditioning, see5.2.1, or, if not possible, the tests shall commence within10min a
39、fter removing the samples from the conditioning atmosphere. 5.3 Surface identification If necessary the identification of the various surfaces of the filled sacks, when testing shall be as given in EN22206. 5.4 Date of completion of tests All tests shall be completed within four weeks after the date
40、 the empty sacks are ready for dispatch by the supplier. 5.5 Drop test 5.5.1 Test method The drop test shall be carried out in accordance with EN27965-1:1992 using the constant drop height method. 5.5.2 Filling of the sacks The sacks shall be filled with the intended commodity or, if this is not pos
41、sible, with similar material, taking into account type and size of granules etc., to give the same degree of filling. The mass of the filling material shall be within 0,2% of that of the nominal mass of the intended contents of the sack. 5.5.3 Test procedure 5.5.3.1 Drop test sequence The drop test
42、shall be carried out on three sacks and shall comprise the following sequence: a) butt dropping; b) flat dropping. 5.5.3.2 Butt dropping The sack shall be dropped from a height of 1,20 m onthe bottom of the sack. 5.5.3.3 Flat dropping The sack shall be dropped from a height of 1,60 m, twice on one f
43、lat face and twice on the opposite flat face. 5.5.4 Criteria for passing the drop test After each drop there shall be no rupture or loss of contents. A slight discharge e.g. from closures or stitch holes, upon impact shall not be considered a failure of the sack provided that no further leakage occu
44、rs after the sack has been raised clear of the ground. 6 Marking The marking of the sack with the suppliers identification is voluntary.EN766:1994 BSI 11-1999 5 7 Test report The test report shall include a statement that all tests have been carried out in accordance with this European Standard and
45、shall include at least the following information: a) name and address of the supplier; b) number of the contract or order reference; c) date, place and description of the sampling; d) description of the sacks in accordance with4.2.4 of this European Standard; e) description of the filling material u
46、sed for testing; f) intended net mass in kg; g) results of and comments on the drop test; h) any deviations from the test methods given in this European Standard; i) name and address of the tester; j) signature of the tester; k) date of the test.6 blankBSEN766:1994 BSI 11-1999 National annex NA (inf
47、ormative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Packaging and Freight Containers Standards Policy Committee (PKM/-) to Technical Committee PKM/11, upon which the following bodies were represented: Aluminium Federatio
48、n Association of the British Pharmaceutical Industry British Aerosol Manufacturers Association British Paper and Board Industry Federation Chartered Institute of Purchasing and Supply Coated Paper and Board Makers Association Department of Health Department of Trade and Industry (Laboratory of the G
49、overnment Chemist) Environmental and Technical Association for the Paper Sack Industry Flexible Packaging Association Food and Drink Federation Institute of Wastes Management Packaging and Industrial Films Association Pira International Sterilization Packaging Materials Association The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Cement Association British Polyolefin Textiles Association Chemical Industries Association Jute Sac
