... Softening Temperature, centigrade: >=804.Dichloromethane Resistance Test, (15 centigrade 15min): No change5.Falling Weight Impact Test, TIR, %(0 centigrade): <=5 6 ... 1)20 centigrade, Hoop Stress is 36Mpa, 1h (dn<40mm): No failure2)20 centigrade, Hoop Stress is 38Mpa, 1h (dn >=40mm ... 60 centigrade, Hoop Stress is 10Mpa, 1000h (All Size): No failure7.Fitness Test for Purpose of the System:1)Leaktightness ...