With the mandatory implementation of GB/T 45203-2024 (effective July 1, 2025), the testing of water leachability indicators for recycled black powder from lithium-ion batteries (e.g., water-soluble fluorides, total organic carbon TOC) explicitly stipulates: the extraction procedure must involve shaking at 30±2 r/min for 18±0.5 hours (Clause D.5.4.2/E.5.4. 2). Extraction vessels must be 2L inert material bottles (glass/PE/Teflon) to prevent component adsorption (Clause D.3.3/E.3.3).