SIS SS-ISO 1746-1990 橡胶或塑料软管和管．弯曲试验

标准号：SIS SS-ISO 1746-1990
中文标准名称：橡胶或塑料软管和管．弯曲试验
英文标准名称：Rubber or plastics hoses and tubing — Bending tests
发布日期：1990/12/5 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：This International Standard specifies two methods for the determination of the behaviour of rubber or plastics hoses or tubing when bent to a specified radius.Method A is suitable for hoses and tubing of bore sizes up to about 80 mm; the size of the apparatus for testing hoses and tubing of larger bore sizes becomes excessive. The method also provides a means of measuring the force required to reach a specified bend radius, and the test may be carried out at a specified internal pressure.In method B, the bending characteristics, including the force required for bending, may be determined ?ver a range of temperatures from -60 °C to +200 °C. The nature of the apparatus, however, limits its applicability to hoses and tubing of small bore sizes, i.e. up to about 12,5 mm.