GB/T 5565-2006 in English

《GB/T 5565-2006橡胶或塑料增强软管和非增强软管 弯曲试验》由TC35（全国橡胶与橡胶制品标准化技术委员会）归口，TC35SC1（全国橡胶与橡胶制品标准化技术委员会软管分会）执行，主管部门为中国石油和化学工业联合会。
本标准规定了橡胶或塑料增强软管和非增强软管弯曲到规定弯曲半径的性能的两种测定方法――方法A和方法B。

Scope

WARNING—Personnel using this standard should have practical experience in formal laboratory work. This standard does not address all possible safety issues. It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations. This standard specifies two methods for the determination of the performance of rubber or plastic reinforced hoses and unreinforced pipes bent to a specified bend radius. Method A applies to both reinforced and non-reinforced hoses with an inner diameter of 80 mm or less. The method also provides a measure of the stress required to achieve a specified bend radius at a specified internal pressure. Method B Bending properties, including the stress required for bending, may be determined at a range of temperatures from -60°C to +200°C. The characteristics of the device define that it is suitable for small diameter reinforced and non-reinforced hoses, ie inner diameters up to 12.5mm.