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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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. Link to Active This link will always route to the current Active version of the standard.
Even for otherwise homogeneous materials, it may be slightly greater through cut edges than through molded surfaces. 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. Water absorption is used to determine the amount of water absorbed under specified conditions. The data sheds light on the performance of the materials in water or humid environments.
Need help or have a question? Water absorption is expressed as increase in weight percent. This second function is particularly applicable to sheet, rod, and tube arms when the test is made on the finished product.
ASTM D – 98() Standard Test Method for Water Absorption of Plastics
Send us a request Wilton UK: 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 9 sheets 0.
Two inch diameter c570, 0. Factors affecting water absorption include: 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. Validating the specifications, value and safety of your raw materials, products and assets.
ASTM D – 98()e1 – Standard Test Method for Water Absorption of Plastics
Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. 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. Formally confirming that your products and services meet all trusted external and internal standards. Global Reach Intertek is the 998 leader with over 42, people in 1, locations in over countries.
Inspection Validating the specifications, value and safety of your raw materials, products and assets. The values stated in parentheses are for information only. Specimens are removed, patted dry with a lint free cloth, and weighed. Time to saturation is strongly dependent on specimen thickness.
Water Absorption ASTM D570
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 d750 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.
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For example, Table 1 shows the time to approximate time saturation for various thickness of nylon 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. Historical Version s – view previous versions of standard.
ASTM D570 – 98(2010)e1
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Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Send us a request Need help or have a question? Immediately upon cooling the specimens are weighed.