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When conducting test in accordance with the stipulated method ,all items of performance of the soft pipe should conform to the requirements of the following table NoItems of Performanceindex Requirement Inner Outer Rubber RubberSamples1Tensile Strength MPa ≥7.07.0Getting samplefromsoftpipe2Break Extensibility ≥2502503(100c×72h)Hot Air Aging (100c×72h)Changing Rate of Tensile Strength,% ≥-20-20Changing Rate of Break Extension,% ≥-50-504Liquid Volume-Resistant Expansibility,% ≤ under Standard Room Temperture,70.2hC Liquid50-B Liquid-1005Adhesive Strength KN/m ≥Inner Rubber Layer and Reinforced Layer Reinforced Layer and Reinforced Layer Reinforced Layer and Outer Rubber Layer1.5Cutting a section of soft pipe from the soft pipe6Outer Rubber's ozone-resistance performanceNo Craze Crack7Hydraulic Test (Test Pressure:0.8MPa)No leakage or Other DfectsWhole soft pipe or soft pipe combination part8blasting Pressure Test,Mpa ≥1.6Cutting off a section of soft pipe from the soft pipe9Volume Expansibility under 0.4MPa,≤210Maximum Electric Resistance between Pipe joints,Ω .m ≤Stretch State, not Charging Liquid2×10-6 Whole soft pipe or soft pipe combination part11Low Temperature Yield Strength(-10±3c)No Craze CrackCutting off a section of soft pipe from the soft pipe