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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Water absorption is expressed as increase in weight percent. Assurance Testing Inspection Certification. Even for otherwise homogeneous materials, it may be slightly greater through cut edges than through molded surfaces. This adtm 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.
ASTM D – 98 Standard Test Method for Water Absorption of Plastics
Inspection Validating the specifications, value and safety of your raw materials, products and assets. Two inch diameter disks, 0. 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.
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Water Absorption ASTM D570
Validating the specifications, value and safety of your raw materials, products and assets. Send us a request Need help or have a question? 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 r570 around the world.
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Time to saturation is strongly dependent on specimen thickness.
ASTM D570 – 98(2010)e1
Standards can be obtained from appropriate standard authorities. Water absorption is used to determine the amount of water absorbed under specified conditions. Consequently, attempts to correlate water absorption with the surface area must generally be limited to closely related materials and to similarly shaped asgm The values stated in parentheses are for information only. Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
Immediately upon cooling the specimens are weighed. Specimens are removed, patted dry with a lint free cloth, and weighed. For example, Table 1 shows the time to approximate time saturation for various thickness of nylon Certification Formally confirming that your products and services meet all trusted external and internal standards.
ASTM D – 98()e1 – Standard Test Method for Water Absorption of Plastics
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With nonhomogeneous materials, such as laminated forms, the rate of water absorption may be widely different through each edge and surface. This second function is particularly applicable to sheet, rod, and tube arms when the test is made on the finished product.
Assurance Enabling you to identify and mitigate the intrinsic risk in atsm operations, supply chains and business processes. The data sheds light on the performance of the asfm in water or humid environments.
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 e570 as a weight basis may need to be considered.
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.
Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Factors affecting water absorption include: