JIS T 3320:2025

This Standard specifies requirements for stopcocks used to control the flow direction of fluids by being connected to gravity-fed or pump-fed fluid pathways for infusion, blood transfusion, blood collection, fluid collection, contrast agent administration, and similar procedures. This Standard applies to stopcocks that are sterile, ready for immediate use, and intended for single-use only, and not to stopcocks used at high pressures (exceeding 200 kPa).