Project index requirements: Appearance of the agent liquid is colorless or light yellow liquid pH value (25℃) 8~11 Internal pressure (25±1)℃, MPa ≤ 0.8 Leakage test (50±2℃, constant temperature water bath) Qualified ejection rate, % ≥ 96 ※Cleaning power, % ≥ 90 ※Heat resistance can be maintained at (40±2) ℃ for 24 hours, and can be used normally after returning to room temperature ※Cold resistance can be maintained at (0～5) ℃ for 24 hours, and can be used normally after returning to room temperature ※ Corrosiveness [normal temperature, brass, 1h] Appearance level 1 corrosion amount, mg ≤ 3 ※Corrosiveness [room temperature, stainless steel, 2h] Appearance level 0 corrosion amount, mg ≤ 2