ASTM D6653-13(R2021) pdf free download

ASTM D6653-13(R2021) pdf free download.Standard Test Methods for Determining the Effects of High Altitude on Packaging Systems by Vacuum Method
1. Scope
1.1 These test methods determine the effects of pressure differential when packaged products are transported by meansn of certain modes of transport, such as feeder aircraft or ground over high mountain passes. The results of these tests are intended to be used for qualitative purposes. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appro- priate safety, health, and environmental practices and deter- mine the applicability ofregulatory limitations prior to use. 1.4 This international standard was developed in accor- dance with internationally recognized principles on standard- ization established in the Decision on Principles for the Development of International Standards, Guides and Recom- mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
4. Significance and Use
4.1 Packaged products transported by meansn of the feeder aircraft network are liable to experience altitudes as high as 5 791 m [19 000 ft]. 4 When exposed to these high altitude conditions, products or packaging systems, or a combination thereof, may be affected negatively by the resultant pressure differential. 4.2 These test methods are suitable for evaluating the effect of high altitude on packaging systems. 4.3 These test methods are suitable for package or product, or both, development and engineering. 4.4 Other test methods, such as Test Methods D3078, D4991 and D5094, test for leakage of packaging systems by vacuum method and are applicable for testing the effects of high altitude.
5. Apparatus
5.1 Vacuum Chamber—Any suitable chamber capable of withstanding approximately one atmosphere pressure differen- tial fitted with a flat-vacuum-tight cover or equivalent chamber providing the same functional capabilities, such as an altitude chamber. 5.2 Vacuum Gauge, Inlet Tube from a Source ofVacuum and Outlet Tube to the Atmosphere, shall be sealed to the chamber. The inlet and outlet tubes shall be equipped with hand operated valves. The vacuum gauge shall be laboratory quality with a full-scale range of 0 to 100 kPa [0 to 30 in. Hg] with minimum graduation no greater than 2 kPa [1 in. Hg] and accuracy to within 2 %. 5.3 The Chamber, shall be large enough to contain the test specimen, as well as allow for the expansion of the product or package, or both.
9. Procedure
9.1 Place the test specimen in the vacuum chamber. Close the chamber inlet valve, open the outlet valve and turn the vacuum source on so that the gauge rises at an approximate rate of 305 m [1 000 ft] 30–60 s until the appropriate pressure is achieved. 9.1.1 Attain a pressure equivalent to 4 877 m [16 000 ft] 6 5 % for test specimens tested at condition specifications. 4 9.1.2 Attain a pressure equivalent to 4 267 m [14 000 ft] 6 5 % if testing the test specimens at the condition specifications is not possible (see 8.1, 8.3 and Table X1.1). 9.1.3 The vacuum pressure may be modified based on knowledge of shipping environment, product value, desired damage level acceptances, or other criteria (see Appendix X1 and Table X2.1 for guidance). 9.2 Maintain the vacuum for 60 min. The test duration may be modified based on knowledge of shipping environment, product value, desired damage level acceptances, or other criteria (see Appendix X1 and Table X2.1 for guidance). 9.3 Partially open the chamber inlet valve and release the vacuum at a rate of approximately 305 m [1 000 ft] per 30–60 s. 9.4 Open the chambers cover and remove the test specimen and examine for any damage or deformation. 5 9.5 Record the results of examination.
10. Interpretation of Results
10.1 If a distribution packaging system was tested and the closure, shipping container, internal packaging and product are intact and free ofdamage, then the packaging system should be reassembled for testing in accordance with an industry ac- cepted packaged-product performance test, such as Practice D4169. This will help determine ifthe pressure differential had an affect on the performance of the packaging system. It is recommended to test a new test specimen with the same packaged-product performance test without the altitude condi- tioning for comparative purposes.