Flexural Test Methods for Plastics: ISO 178 and JIS K 7171
Resin materials (plastics) are found in a wide variety of items used on a daily basis. Recently, plastics have started to be used as structural materials in transportation equipment, such as automobiles and aircraft, due to their strength and light-weight nature. In these applications, it is important to understand the mechanical strength properties of these plastics.
Testing the flexural properties (bending properties) of plastics and other resin materials are covered in ISO 178 and JIS K 7171. These methods include calculations for the mechanical properties and accuracy specifications for the measuring systems used.
The ASTM standard for flexural testing of plastics, ASTM D790, has slightly different requirements compared with ISO 178 and JIS K7171, which are essentially the same. For more information about ASTM D790, please click here.
Features
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Eine Prüfkraftgenauigkeit, die ISO 7500-1 Klasse 1 und JIS B 7721 Klasse 1 entspricht, Genauigkeit innerhalb von ±1 % der angegebenen...
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ISO 178 und JIS K 7171 erfordern eine Genauigkeit der Klasse 1 nach ISO 9513 (Genauigkeit innerhalb von 1 % des angegebenen Werts) für...
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In den Anhängen von ISO 178 und JIS K 7171 sind Traversenverschiebung und Compliance-Korrektur enthalten.
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Der Radius des Stempels und der Auflager, die für die Biegeprüfung nach ISO 178 und JIS K 7171 verwendet wird ...