Designation: D – 98 1 This test method is under the jurisdiction of ASTM Committee D on See Annual Book of ASTM Standards, Vol Water Absorption 24 Hour/Equilibrium ASTM D Scope: Water absorption is used to determine the amount of water absorbed under specified conditions. ASTM D Standard Test Method for Water Absorption of Plastics. ASTM D Edition, July 10, Complete Document. Standard Test Method for.
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Consequently, attempts to correlate water absorption with the surface area must generally be limited to closely related materials and to similarly shaped specimens: It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
For materials of widely varying density, relation between water-absorption values on a volume as well as a weight basis may need to be considered. Two inch diameter disks, 0.
Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Formally confirming that your products and services meet all trusted external and internal standards. For the water absorption test, the specimens are dried in an oven for a specified time and temperature and then placed in a desiccator to cool. This test method is intended to apply to the testing of all types of plastics, including cast, hot-molded, and cold-molded resinous products, and both homogeneous and laminated plastics in rod and tube form and in sheets 0.
The values stated satm parentheses are for information only.
Through our network of over 43, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world. Need help or have a question? Send us a request Wilton D5770 Inspection Validating the specifications, value and safety of your raw materials, products and assets.
Water Absorption ASTM D
Validating the specifications, value and safety of your raw materials, products and assets. The data sheds light on the performance of the materials in water or humid environments. Auditing Consulting Sourcing Training. Historical Version s – view previous versions of standard. Immediately upon cooling the specimens are weighed.
This second function is particularly applicable to sheet, rod, and tube arms when the test is made on the finished product.
Certification Formally confirming that your products and services meet all trusted external and internal standards. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. For example, Table 1 shows the time to approximate time saturation for various thickness of nylon Factors affecting water absorption include: The effect upon these properties of change in moisture content due to water absorption d57 largely on the type of exposure by immersion in water or by exposure to asgm humidityshape of the d50, and inherent properties of the plastic.
Global Reach Intertek is the industry leader with over 42, people in 1, locations in over countries. Water absorption is expressed as increase in weight percent. Whether your business is local or global, we can ensure your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world.
Standards can be obtained from appropriate standard authorities. Send us a request Need help or have a question? Assurance Testing Inspection Certification. Link asgm Active This link will always route to the current Active version of the standard.
ASTM D570 – 98(2010)e1
With nonhomogeneous materials, such as laminated forms, the rate of water absorption may be widely different through each edge and surface. Even for otherwise homogeneous materials, it may be slightly greater through cut edges than through molded surfaces. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Water absorption is used to determine the amount of water absorbed under specified conditions.
Time to saturation is strongly dependent on specimen thickness. Specimens are removed, patted dry with a lint free cloth, and weighed.
Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.