1、A EUROPEAN SrANDARD NORME EUR0PEE”E EUROP- NORM EN 22874 November 1992 - UDC 621.798.1 : 620.173 Descriptors: Packing, complete- and ed packageq transport packing, stacking tests, compression tests, test equipment English versibn Pwkagmg - Complete, filled transport packages - Stacking test using co
2、mpression tester (Is0 2874 : 1985) Emballages - Emballages dexpkiition complets et pleins - Essai de gerbage laide attention is drawn especially to the following. Wherever the words International Standard appear, referring to this standard, they should be read as British Standard. Cross references I
3、nternational standard Corresponding Brit Standard IS0 2206-1972 BS 4826 Methods of test for complete, filled transport packages Part 1 : 1972 Identification of package parts when testing (Technically equivalent) BS 4826 Complete, filled transport packages Part 3 : 1986 Method of test for stacking us
4、ing static load (Identical) IS0 2234-1985 The Technical Committee has reviewed the provisions of IS0 2233, a new edition of which is currently in preparation and to which reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A related Brit
5、ish Standard is BS 4826 Complete, filled transport packages Part 2 : 1986 Method of conditioning for testing. A revision of BS 4826 : Part 7 is in preparation and will be identical with IS0 2872-1985. The current (1975) edition is identical to the previous edition (1973) of IS0 2872. Compliance with
6、 a British Standard does not of itself confer immunity from legal obligations. Brit ish Stan dards I nstit ut ion CEN ENW2874 92 3404589 0042918 924 BS 4826 : Part 9 : 1986 1 Scope and field of application This International Standard specifies a method for carrying out a stacking test on complete, f
7、illed transport packages, using a compression tester. This test may be used to assess the perfor- mance of a package in terms of its strength or the protection that it offers to its contents when it is subjected to stacking. It may be performed either as a single test to investigate the ef- fects (d
8、eformation. creep, collapse or failure) of stacking or as part of a sequence of tests designed to measure the ability of a package to withstand a distribution system that includes a stacking hazard. The test may also be used to investigate performance under particular conditions of loading, as, for
9、example, when the bot- tom package in a stack rests on an open-decked pallet. When the compression load is not to be applied over the whole sur- face of the package which is being tested, appropriate devices should be suitably interposed between the package and platen of the press in order to simula
10、te the conditions met in practice when applying these compression loads. NOTE - A method for carrying out a stacking test on a complete, filled transport package, using one of three methods of applying a static load, is given in IS0 2234. A method for testing the compression resistance of a complete
11、, filled transport package, using a compression tester, is given in IS0 2872. 2 References IS0 m36, Packaging - Complete, filled transport packages - Identifimtion of parts when testing. IS0 2233, Rickaging - Complete, filled transport packages - Conditioning for testing. IS0 2234,Packaging - Comple
12、te, filed transport packages - Stacking tests using static load. IS0 2872, Rickaging - Complete, filed transport packages - Compression test. 3 Principle Placing of the test package on the lower platen of a compres- sion tester and lowering of the upper pbten to impose a load upon it. This load, the
13、 atmospheric conditions, duration of time under load and attitude of the packages are predetermined. 4 Apparatus ! 4.1 Compression tester, motor-driven, mechanical or hydraulic, platen-type, c-ble of applying load through uniform movement of one or both platens. The platens shall be - flat, so that
14、when placed horizontally the difference in height between the lowest and highest points does not ex- ceed 1 mm; - dimensioned CO as to extend over the whole area of the panels or interposed devices with which they are in contact; - rigid, so as not to deform by more than 1 mm at any point when the t
15、ester applies a load of 75 % of its maximum rating, either to a centrally placed 100 mm x 100mm x 100 mm block having sufficient strength to accept this load without failure, or to four similar blocks placed at the four corners, in the case of swivel- mounted platens. One platen shall remain horizon
16、tal, within two parts per 1 o00 at all times during the test. The other platen shall be either rigidly mounted so as to remain horizontal within two parts per 1 o00 at all times during the test, or be held by a universal joint at its centre and so be free to tilt in any direction. The working surfac
17、es of platens suitable for testing packages with a length or width or diameter greater than 1 o00 mm may be locally recessed for fixing bolts, etc. 4.2 not exceeding f 2 % of the load. Recording device for loads, with a percentage of error 4.3 Means of imposing a predetermined load, for a predetermi
18、ned time, without fluctuation exceeding f 4 % and with no more relative movement of the platens than is necessary to maintain this load during any vertical displacement of the upper platen. 4.1 Means of measuring deflection (if necessary), ac- curate to f 1 mm and capable of indicating either an inc
19、rease or a decrease in dimensions. 2 CEN ENx22874 92 = 3404589 0042939 860 = 5 Package preparation The test package shall normally be filled with its intended con- tents. However, simulated or dummy contents may be used, on condition that the dimensions and physical properties of such contents shall
20、 be as close as possible to those of the in- tended contents. Ensure that the test package is closed normally, as if ready for distribution. If simulated or dummy contents are used, ensure that the normal method of closure is still employed. Publications referred to See national foreword. 6 Conditio
21、ning The package shall be conditioned in accordance with one of the conditions described in IS0 2233. 7 Procedure Whenever possible the test shall be carried out in the same at- mospheric conditions as used for conditioning where this is critical to the materials or application of the package. In ot
22、her circumstances, the test shall be carried out in atmospheric con- ditions which are as near as practicable to those used for con- ditioning. 7.1 the test machine (4.11, in the predetmined attitude. Place the test package centrally on the lower platen of 7.2 Apply the load by relative movement of
23、the platens until the predetennined load is reached. The load shall be applied in such a way that peaks in excess of the predetermined load do not occur. 7.3 time or until premature collapse. Maintain the predetermined load for the predetermined 7.4 Remove the load by movement of the platens, examin
24、e the package and, if necessary, measure its dimen- sions. BS 4826 : Part 9 : 1986 NOTES 1 At any time during the test it may be necessary to measure dimen- sions. 2 Appropriate profiles rqwesentative of particular loading conditions may be inserted as required. 8 Test report The test report shall i
25、nclude the following particulars : a) reference to this International Standard; b) number of replicate packages tested; c) full description of the package, including dimensions, structural and material specifications of the package and its fittings, cushioning, blocking, closure or reinforcing ar- r
26、angements; d) description of contents - if simulated or dummy con- tents were used, full details shall be given; e) gross mass of package and mass of contents, in kilograms; f) relative humidin/, temperature and time of conditioning; temperature and relative humidity of test area at time of test; wh
27、ether these values comply with the requirements of IS0 2233; g) the attitude in which the package was tested, using the method of identification given in IS0 2206; h) type of apparatus used, including whether the tester was mechanically or hydraulically operated and whether both platens wem rigidly
28、mounted or not; j) load imposed, in newtons, and the duration of time of the package under load; k) design and dimensions of any profiles used; m) location of deflection measurement points on pack- ages and stage of test at which deflection measurements were made; ni any deviations from the test method described in this International Standard; pi a record of the result, with any observations which may assist in correct interpretation; q) date of the test; ri signature of tester. 3
