Indicator name Indicator liquid Appearance of light-colored transparent liquid Internal pressure (25 ± 1) ℃, MPa ≤ 0.8 Ejection rate, % ≥ 95.0 Leak test (50 ± 2 ℃, constant temperature water bath) Passed ※ Gum removal rate, % ≥ 80 ※ Heat resistance can be maintained at 40°C for 24 hours, and can be used normally after returning to room temperature. ※ Cold resistance can be maintained at (0~5)°C for 24 hours, and can be used normally after returning to room temperature. ※ Corrosiveness (40°C±2°C, 2h) Appearance of No. 45 steel , level 0 corrosion amount, mg≤2