1、BRITISH STANDARDBS EN ISO 20848-2:2008Packaging Plastics drums Part 2: Non-removable head (tight head) drums with a nominal capacity of 208,2 l and 220 lICS 55.140g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48
2、g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 20848-2:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2007 BSI 2008ISBN 978 0 580 61021 9National forewordThis British Standard is the UK implementation
3、 of EN ISO 20848-2:2008. It is identical with ISO 20848-2:2006. It supersedes BS ISO 20848-2:2006 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PKW/0, Packaging.A list of organizations represented on this committee can be obtained on request to its
4、secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate Comments30 Novembe
5、r 2008 This corrigendum renumbers BS ISO 20848-2:2006 as BS EN ISO 20848-2:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 20848-2June 2008ICS 55.140English VersionPackaging - Plastics drums - Part 2: Non-removable head (tighthead) drums with a nominal capacity of 208,2 l and 220 l (ISO208
6、48-2:2006)Emballages - Fts en matire plastique - Partie 2: Fts ouverture non amovible (ouverture partielle) dune capacitnominale de 208,2 l et 220 l (ISO 20848-2:2006)Verpackung - Kunststofffsser - Teil 2: Spundfsser miteinem Nennvolumen von 208,2 l und 220 l (ISO 20848-2:2006)This European Standard
7、 was approved by CEN on 16 May 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nati
8、onalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and not
9、ified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt
10、a, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploita
11、tion in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 20848-2:2008: EForeword The text of ISO 20848-2:2006 has been prepared by Technical Committee ISO/TC 122 “Packaging” of the International Organization for Standardization (ISO) and has been taken over as EN
12、ISO 20848-2:2008 by Technical Committee CEN/TC 261 “Packaging” the secretariat of which is held by AFNOR. This 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 December 2008, and conflicting national st
13、andards shall be withdrawn at the latest by December 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELE
14、C Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
15、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 20848-2:2006 has been approved by CEN as a EN ISO 20848-2:2008 without any modification. BS EN ISO 20848-2:2008iiiContents Page Introdu
16、ction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Requirements 2 4.1 Dimensions 2 4.2 Drum mass 3 4.3 Material identification symbol . 3 4.4 Closures. 4 4.5 Materials 4 4.6 Handling. 4 4.7 Stacking . 4 4.8 Draining . 5 4.9 Finish 5 5 Designation . 5 Annex A (normative) Capa
17、city measurement method for non-removable head (tight head) plastics drums. 6 Annex B (normative) Draining test method for non-removable head (tight head) plastics drums . 8 Annex C (normative) International material code symbols . 10 Bibliography . 12 BS EN ISO 20848-2:2008blankvIntroduction Throug
18、hout the world, a large number of plastics drum types with different dimensions and characteristics are being used. The differences in location of the minimum filling opening and outer dimensions result in differences in filling, handling and transportation. ISO 20848 specifies the characteristics a
19、nd dimensions of plastics drums which are of importance for the worldwide safe handling and transport of substances and for the continued reuse of the drums during their life cycle. Detailed performance requirements and the related test methods are not included as they depend upon the specific appli
20、cation. Where the drums are intended to be used for the transport of dangerous goods, attention is drawn to the regulatory requirements which govern the transport of those goods in the countries concerned, including capseals/overseals fitted in accordance with the certificate. Depending upon the mod
21、e of transport, this means meeting the requirements of: UN (United Nations) Recommendations on the Transport of Dangerous Goods, ICAO (International Civil Aviation Organization) Technical Instructions for the Safe Transport of Dangerous Goods by Air, IMO (International Maritime Organization) Interna
22、tional Maritime Dangerous Goods (IMDG) Code. This involves the certification and marking of the drums according to the regulations. BS EN ISO 20848-2:2008blank1Packaging Plastics drums Part 2: Non-removable head (tight head) drums with a nominal capacity of 208,2 l and 220 l 1 Scope This part of ISO
23、 20848 specifies the characteristics and dimensions of non-removable head (tight head) plastics drums with a nominal capacity of 208,2 l and 220 l. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition
24、 cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 20848-3, Packaging Plastics drums Part 3: Plug/bung closure systems for plastics drums with a nominal capacity of 113,6 l to 220 l 3 Terms and definitions For the purposes of
25、 this document, the following terms and definitions apply. 3.1 non-removable head (tight head) drum TH flat-ended or convex-ended circular cross-section packaging with openings for filling and emptying in the head not exceeding 70 mm in diameter 3.2 nominal capacity NC capacity in litres which, by c
26、onvention, is used to represent a class of drums of similar brimful capacities 3.3 brimful capacity BC volume of water in litres held by the drum when filled through the filling orifice to the point of overflowing NOTE Annex A specifies the method for measuring brimful capacity. 3.4 total capacity T
27、C volume of water in litres held by the drum when filled completely, i.e. following the removal of any air trapped in the drum NOTE Annex A specifies the method for measuring total capacity. BS EN ISO 20848-2:20082 3.5 overall height, hoheight of the finished drum from the base to the highest point
28、NOTE See Figure 1. 3.6 overall diameter, domaximum diameter of the drum, where relevant NOTE See Figure 1. 3.7 bung housing position, pbdistance from the centre of the bung housing to the outside of the drum body 50 mm vertically below the top edge of the top handling ring NOTE See Figure 1. 3.8 dru
29、m mass mass of the empty drum including all closures 4 Requirements 4.1 Dimensions The dimensions and tolerances of the drum shall be as listed in Table 1 and as shown in Figure 1. The measurements shall be conducted at ambient conditions but shall not be made within 48 h of manufacture. NOTE Apart
30、from the dimensions specified, there are no restrictions on drum shape. Table 1 Dimensions of non-removable (tight head) drums with a nominal capacity of 208,2 l and 220 l (55 US gal and 58,1 US gal) Nominal capacity, NC Brimful capacity, BC Overall diameter, doBung housing position, pbOverall heigh
31、t,hol (US gal) l (US gal) mm mm mm 208,2 (55) 216,5 50+(57,2 1, 3 20+) 595 57+84 2 890 7 220 (58,1) 222 32+(58,6 0, 80, 5+) 581 5 72 2 935 5 NOTE 1 The bung housing position defined in this table only applies to that housing used for filling. NOTE 2 Dimensions do, pband hoare applicable to empty dru
32、ms. NOTE 3 1 US gal = 3,785 l. BS EN ISO 20848-2:20083Dimensions in millimetres Key pbbung housing position dooverall diameter hooverall height The complete closure (plug and capseals/overseals) should not protrude above the overall height ho. NOTE Four possible designs are shown. Figure 1 Non-remov
33、able head (tight head) drum 4.2 Drum mass The mass tolerance of the drum shall be 3 %. NOTE The defined mass should be agreed between the purchaser and the supplier. 4.3 Material identification symbol The drum shall be permanently marked with the relevant material identification symbol, i.e. the sym
34、bol identifying the material from which the drum is made, as shown in Annex C. BS EN ISO 20848-2:20084 4.4 Closures There shall be two closures in accordance with ISO 20848-3. When fitted, the closures shall not protrude above the overall height of the drum. The preferred options are identified in T
35、able 2. The closure systems shall incorporate a facility for providing tamper evidence. For the purpose of transport and storage, the filled drum should be closed, using the appropriate tooling, to the manufacturers recommended closure torque for each type of gasket. NOTE 1 For closures in drums int
36、ended for dangerous goods, the tolerance on the torque figures are specified in ISO 16104. NOTE 2 After tightening of plugs, torques will reduce over time. In particular, plastics components are subject to stress relaxation resulting in a reduced torque. NOTE 3 Torque figures supplied by the manufac
37、turer are valid for the tightening of plugs in a clockwise direction. The measurement of torques on releasing plugs, i.e. in an anticlockwise direction, are different. Table 2 Preferred closure system combinations Draining side Second side BCS G2 11,5 BCS 70 6 BCS G2 11,5 BCS 56 4 BCS G2 11,5 BCS G2
38、 5 4.5 Materials The drum shall be manufactured from high-density polyethylene or another suitable plastics material, or a combination thereof. Suitable non-plastics material may be used in conjunction with the plastics material. NOTE Suitable additives may be included provided the specifications ar
39、e identified. 4.6 Handling Provision shall be made to enable the drum to be mechanically handled using one or two permanently fixed handling rings. The construction of the handling rings shall be adequate for normal static and dynamic handling of filled drums. 4.7 Stacking The drum shall be capable
40、of being stacked with or without pallets, according to the manufacturers recommendations. BS EN ISO 20848-2:200854.8 Draining 4.8.1 The drum shall be designed so as to minimize the residual volume of liquid left in the drum after drainage. The residue shall be not more than 100 ml when tested accord
41、ing to B.3. 4.8.2 The residue obtained when the drum is tested according to B.4 is more dependent on the area and condition of the internal surface of the drum than when the drum is tested according to B.3 and, therefore, may be in excess of that obtained according to B.3. NOTE The maximum permitted
42、 figure should be agreed between the purchaser and the supplier. 4.9 Finish The external surface finish shall be suitable for the attachment of labels. NOTE 1 The nature of the internal and external finish should be agreed between the purchaser and the supplier. The drum body should be blue in colou
43、r. The use of any other colour and any durable marking should be agreed between the purchaser and the supplier. 5 Designation A non-removable head (tight head) drum (TH) manufactured in accordance with this part of ISO 20848 with a nominal capacity of 220 l shall be so designated, e.g. Plastics drum
44、 TH ISO 20848-2 NC - 220 l BS EN ISO 20848-2:20086 Annex A (normative) Capacity measurement method for non-removable head (tight head) plastics drums A.1 Principle The capacity is determined by a gravimetric method, i.e. by the measurement of the mass of water in the filled drum and its conversion t
45、o a capacity. A correction factor can be applied according to Table A.1, but only if the weighing scale used is of a higher precision than the correction. Table A.1 Correction factors Water temperature C Correction factor, F 12 1,000 5 14 1,000 8 16 1,001 1 18 1,001 4 20 1,001 8 22 1,002 2 24 1,002
46、7 27 1,003 6 A.2 Apparatus Weighing scale, with an accuracy of at least 0,1 % of the weight being measured. A.3 Procedure for determination of total capacity A.3.1 Drill a hole of diameter 5 mm to 10 mm for venting at the highest point of the closed drum. NOTE The position of the hole depends on the
47、 profile of the top. A.3.2 Weigh the empty drum and record its mass, m1, in grams. A.3.3 Measure the temperature of the tap water to be used to fill the drum. A.3.4 Fill the drum 100 % with water through the normal filling closure with all other closures fitted and make sure that the air is vented t
48、hrough the drilled hole. NOTE For certain drums, the drum needs to be inclined or tilted, so that the filling hole is at the highest position. A.3.5 Fit and secure the drum closure and remove any surplus water from the outside. A.3.6 Weigh the filled drum and record its mass, m2, in grams. BS EN ISO
49、 20848-2:20087A.4 Procedure for determination of brimful capacity Follow the same procedure as for the determination of total capacity (see A.3) with the exception that no hole is drilled to vent entrapped air. Fill the drum, with the drum in the normal position for filling, until water overflows at the closure. A.5 Expression of results The difference between the mass of the filled drum, m2, and the mass of the empty drum, m1, (m2 m1), if necessary multiplied by the correction factor F, represents the capacity of
