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Significance and Use
These test methods are normally used for the following purposes:
To evaluate materials and constructions for a specific type of container,
To compare performance of different types of containers,
To determine adequacy of protection for a specific product or application, and
To maintain quality control.
1.1 These test methods cover the determination of water vapor transmission rates for bulk shipping containers, as follows:
1.1.1 Method A, for Reclosable Containers, and
1.1.2 Method B, for Containers Not Designed for Reclosing.
1.2 Within each procedure details are given for the constant and cycle methods of test atmosphere.
1.3 The test may be applied to the container as packed, or after one or more performance tests such as drum (Method D 782
1.4 For small shipping containers requiring greater accuracy in weighing, the water vapor transmission may be determined in accordance with Test Method D 895
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6 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 appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D782 Test Method for Shipping Containers in Revolving Hexagonal Drum
D880 Test Method for Impact Testing for Shipping Containers and Systems
D895 Test Method for Water Vapor Permeability of Packages
D996 Terminology of Packaging and Distribution Environments
D999 Test Methods for Vibration Testing of Shipping Containers
D1251 Test Method for Water Vapor Permeability of Packages by Cycle Method
D4003 Test Methods for Programmable Horizontal Impact Test for Shipping Containers and Systems
D4169 Practice for Performance Testing of Shipping Containers and Systems
D5276 Test Method for Drop Test of Loaded Containers by Free Fall
D5277 Test Method for Performing Programmed Horizontal Impacts Using an Inclined Impact Tester