What USP water grades does AMPAC USA manufacture systems for?
AMPAC USA produces systems for USP Purified Water (PW) and Water for Injection (WFI) as defined in USP Chapter 645 and the corresponding European Pharmacopoeia 2.2.38 monographs. USP PW requires conductivity below 1.3 microsiemens/cm at 25 degrees C and TOC below 500 ppb. WFI adds an endotoxin limit of 0.25 EU/mL. Both grades are required in pharmaceutical manufacturing, biotech, and compounding pharmacy operations.
What is the difference between USP Purified Water and Water for Injection?
Both grades meet the same conductivity and TOC specifications, but WFI adds a bacterial endotoxin limit of 0.25 EU/mL and requires production by distillation or a method shown equivalent (membrane-based systems are now accepted under USP since 2017 and EP since 2019). PW is used for non-parenteral drug manufacturing. WFI is required wherever the water contacts a product that will be injected into a patient.
Does AMPAC USA offer 21 CFR Part 11 compliant data logging for pharmaceutical systems?
Yes. Pharmaceutical-grade systems are available with 21 CFR Part 11 compliant data acquisition modules that provide electronic audit trails, timestamped quality records for conductivity, TOC, flow, and temperature, and user access controls with role-based permissions. This data infrastructure supports FDA process validation documentation and is required for any system used in a GMP manufacturing environment subject to FDA inspection.
What validation documentation does AMPAC USA provide for USP water systems?
Standard validation packages include a Factory Acceptance Test (FAT) report with calibration certificates, a Design Qualification (DQ) document, and IQ/OQ protocol templates written to ISPE baseline guide standards. Customers complete the OQ and PQ phases during site commissioning. AMPAC USA field engineers can perform or witness IQ and OQ execution. Full validation support from DQ through PQ is available as a project service.
What distribution system design is required to maintain USP water quality after production?
USP water quality degrades rapidly if stored or distributed incorrectly. The accepted standard is a continuously circulating loop in 316L electropolished stainless steel or PVDF piping, running at temperatures above 65 degrees C (hot loop) for WFI, or circulating at ambient with ozone or UV sanitization for PW systems. Dead legs in the distribution piping must not exceed 6 pipe diameters. AMPAC USA designs complete distribution loops to these specifications.
What feed water pre-treatment is needed before a USP pharmaceutical water system?
The standard pre-treatment train for a USP water system starts with multimedia filtration to remove suspended solids, then water softening or antiscalant injection for hardness control, activated carbon filtration for chloramine and chlorine removal, and 5-micron cartridge filtration as a final guard before the RO high-pressure pumps. The RO stage produces the bulk ionic purification, and downstream EDI, UV, and ultrafiltration complete the purification to USP specifications.