Water for Injections (WFI) represents the gold standard for high-purity pharmaceutical water, built on purified water with additional removal of pyrogens and microorganisms. Complying with strict sterility requirements, it boasts conductivity ≤1.3μS/cm, TOC ≤0.2mg/L, and microbial limits ≤10CFU/100mL—essential for products entering the human body directly.   Pyrogens pose...