1、CEN ENs28474 92 3404589 0042999 023 - EUROPEAN mARD NORMI3 EXJR0PEE”E EX.JFtP attention is drawn especially to the following. Wherever the words International Standard appear, referring to this standard, they should be read as Part of BS 4826. Cross-reference. The Technical Committee has reviewed th
2、e provisions of IS0 2233, to which reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A related British Standard is BS 4826 Complete, filled transport packages Part 2 : 1986 Method of conditioning for testing. Compliance with a British
3、Standard does not of itself confer immunity from legal obligations. British Standards Institution CEN ENx28474 72 3404587 0043002 2Lb BS 4826 : Part 13 : 1987 1 This International Standard specifies a test method for the im- mersion in water of complete, filled transport packages. It may be used to
4、pre-condition a package prior to other tests, to in- vestigate reduction in strength caused by exposure to water or to investigate the protection the package gives to its contents from water immersion. The test is principally intended for packages which are waterproof or which are intended to pro- v
5、ide some degree of “waterproofness“. The test is performed on the package as prepared for transport and may form part of a test sequence. Scope and field of application 2 Reference IC0 2233, Packaging - Complete. filled transport packages - Conditioning for testing. 3 Principle Conditioning of the p
6、ackage, followed by complete immersion in water, removal and draining and drying ir: the conditioning atmosphere. The time of immersion, time of draining and dry- ing and the atmospheric conditions are predetermined. 4 Apparatus 4.1 Test area, conditioned in such a manner that evapora- tion from the
7、 wet package and the surface of the water in the water tank (4.2) do not significantly change the atmospheric conditions. 4.2 Water tank, sufficiently large for the test package to be immersed completely under water with the water level at least 100 mm above the package. The tank shall be designed s
8、o that it can be easily filled with water and emptied and the water maintained at the temperature specified in 7.1, 4.3 Immersion equipment to contain the test package loosely. It shall be capable of being lowered and lifted. A cage of appropriate dimensions is suitable for this purpose. NOTE - Some
9、 means of hoisting, for example an electric or manual hoist, may be fitted over the water tank to lower and raise the test package conveniently. 4.4 Rigid grill, capable of supporting the wet test package without deformation and positioned so that air is able to flow freely beneath it. The rods or b
10、ars from which it is made shall not occupy more than 10 % of the surface area. 5 Package preparation The test package shall normally be filled with its intended con- tents. However, under certain circumstances, simulated or dummy contents may be used, on condition that the dimen- sions and physical
11、properties of the such contents shall be as close as possible 10 those of the intended contents. Ensure that the test package is closed, and labelled or marked normally, as if ready for distribution. If simulated or dummy contents are used, ensure that the normal methods of closure, and labelling or
12、 marking are still employed. 6 Conditioning The package shall be conditioned in accordance with one of the conditions specified in IS0 2233. 7 Procedure 7.1 Fill the tank (4.2) to an appropriate depth with water and ensure that the water temperature is within k 2 OC of the temperature selected from
13、a range from 5 to 40 OC. 2 CEN EN*28474 92 7.2 The test shall be begun within 5 min of removing the package from the atmospheric conditions selected for clause 6. Part 13 : 1987 The test report shall include the following information : 7.3 into the water at a rate not greater than 300 mm/min. Using
14、the immersion equipment (4.31. lower the package Alternatively the package may be placed in the empty water tank which is then filled to the required level. The immersion process shall be considered to be complete when the water level is at least 100 mm above the top of the package. Keep the package
15、 immersed for a period which shall be selected from 5, 15 or 30 min, or from 1, 2 or 4 h. 7.4 After the predetermined immersion period, raise the package completely out of the water at a rate not exceeding 300 mm/min. Place the package on the grill (4.4) positioned so that all sur- faces of the pack
16、age are exposed to the atmospheric conditions specified in clause 6. Allow the package to be exposed for a period which shall be selected from 4. 8, 16, 24. 48 or 72 h or from 1, 2, 3 or 4 weeks. 7.5 Note any obvious damage sustained by the package and its contents as a result of immersion in water
17、and subsequent draining and drying. and any other difference in appearance, in- cluding labels and markings. 3404589 0043003 152 BS 4826 8 Test report a) reference to this International Standard; b) the number of replicate packages tested; c) a full description of the package, including dimensions,
18、structural and material specifications of the package and its fittings, cushioning, blocking or reinforcing arrangements; d) a description of contents - if simulated or dummy con- tents were used, full details shall be given; e) the gross mass of the package and the mass of the con- tents, in kilogr
19、ams; f) the relative humidity, temperature and time of condi- tioning; a statement whether these values comply with the requirements of IS0 2233; g) the temperature of the test area and of the water at the time of immersion: h) immersion and draining, etc.; the orientation of package relative to the
20、 floor during i) the duration of immersion in water; i) the duration of the draining and drying method; k) any deviations from the test method specified in this International Standard; I) assist in correct interpretation; a record of the result, with any observations which may m) the date of the test; n) the signature of the person responsible for the test. Publication referred to See national foreword. 3
