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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This second function is particularly applicable to sheet, rod, and tube arms when the test is made on the finished product. Enabling you to identify and mitigate the 988 risk in your operations, supply chains and business processes.
The values stated in parentheses are for information only. 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 adtm and laminated plastics in rod and tube form and in sheets 0.
Aetm 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.
Certification Formally confirming that your products and services meet all trusted external and internal standards. For example, Table 1 shows the time to approximate time saturation for various thickness of nylon Specimens are removed, patted dry with a lint free cloth, and weighed.
Inspection Validating the specifications, value and safety of your raw materials, asym and assets. Water absorption is used to determine the amount of water absorbed under specified conditions.
Historical Version s – view previous versions of standard. For the water absorption 988, the specimens are dried in an oven for a specified time and temperature and then placed in a desiccator to cool. Assurance F570 you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Standards can be obtained from appropriate standard authorities.
With nonhomogeneous materials, such as laminated forms, the rate of water absorption may be widely different through each edge and surface. Link to Active This link will always route to the current Active version of the standard.
Send us a request Need help or have a question? Even for otherwise homogeneous materials, asm may be slightly greater through cut edges than through molded surfaces. 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.
Factors affecting water absorption include: 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. Auditing Consulting Sourcing Training. It is 988 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.
The effect upon these properties of change in moisture content due to water absorption depends largely on the type of exposure by immersion in water or by exposure to high humidityshape of the part, and inherent properties of the plastic. Consequently, attempts to correlate water absorption with the surface area must generally be limited to closely related materials and to similarly shaped specimens: The data sheds light on the performance of the materials in water or humid environments.
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Assurance Testing Inspection Certification. Water absorption is expressed as increase in weight percent. Send us a request Wilton UK: Need help or have a question?
Immediately upon cooling the specimens are weighed. Validating the specifications, value and safety of your raw materials, products and ast. Time to saturation is strongly dependent on specimen thickness. Formally confirming that your products and services meet all trusted external and internal standards. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Two inch diameter disks, 0.