משמעות ושימוש
4.1 These test methods are generally used for the following purposes:
4.1.1 To evaluate the materials and construction of a particular type of container,
4.1.2 To compare the performance of different types of containers,
4.1.3 Determine whether the protection of a particular product or application is adequate, השלבים השונים של ייבוש ואשפרה המתרחשים בסרטים קלים לזיהוי אך קשים להגדרה במונחים של עקרונות כימיים ופיזיקליים
4.1.4 Maintain quality control.
ASTM D4279-2017 שיטת בדיקה סטנדרטית להעברת אדי מים בכלי תחבורה – שיטות קבועות ומחזוריות
שלב 1: תְחוּם
1.1 These test methods cover the determination of the water vapor transmittance of bulk shipping containers as follows:
1.1.1 Method A, for resealable containers, השלבים השונים של ייבוש ואשפרה המתרחשים בסרטים קלים לזיהוי אך קשים להגדרה במונחים של עקרונות כימיים ופיזיקליים
1.1.2 Method B, for containers not designed for reclosing.
1.2 In each program, methods for constant and cyclic test atmospheres are given in detail.
1.3 The test may be performed in a packed container or after one or more performance tests, such as drum (method D782), vibration (method D999), drop (method D5276), impact resistance (method D880, D4003 and D5277) or performance test (practice D4169).
1.4 For small transport containers requiring more accurate weighing, the water vapor transmittance can be determined according to test method D895 or test method D1251.
1.5 Values in inch-pounds shall be regarded as standard values. The values given in parentheses are mathematical transformations of SI units and are for reference only and are not considered standard.
1.6 This standard is not intended to address all safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health measures prior to use and to determine the applicability of regulatory restrictions.
1.7 This international standard is based on internationally recognized standardization principles established in the Decision on Principles for the Development of International Standards, Guidelines and Recommendations issued by the WTO Technical Barriers to Trade (TBT) Committee.
ASTM D4279-2017 שיטת בדיקה סטנדרטית להעברת אדי מים בכלי תחבורה – שיטות קבועות ומחזוריות
2. Refer to the file
ASTM standard
D782 Test method for transport containers in rotating hexagonal drums
D880 Test method for impact testing of transport containers and systems
Test method for water vapor permeability of D895 packaging
D996 Packaging and distribution environmental terms
Test method for vibration test of D999 container
Test method for water vapor transmittance of D1251 recycle packaging
D4003 Test methods for programmable horizontal impact testing of containers and systems
Practice of D4169 shipping containers and system performance testing
D5276 Test method for drop test of drop load containers
D5277 Uses a tilt impact tester to perform a test method for programmed horizontal impact