This standard specifies two test methods for determining the proper flexibility of rubber and plastic hoses at low temperatures. Method A: The low-temperature rigidity test is suitable for non-folding hoses with an inner diameter of 25mm or less (including 25mm). This method is to measure the increase in the stiffness of the hose at the standard laboratory temperature to compare the flexibility of the hose. Method B: The low-temperature bending test is suitable for hoses with an inner diameter of 100mm or less (including 100mm).
GB/T 5564-1994 history
2017GB/T 5565.2-2017 Rubber and plastics hoses and tubing—Measurement of flexibility and stiffness—Part 2: Bending tests at sub-ambient temperatures
2006GB/T 5564-2006 Rubber and plastics hoses Subambient temperature flexibility tests
1994GB/T 5564-1994 Rubber and plastics hoses--Subambient temperature flexibility tests