STERIS

STERIS Applied Sterilization Technologies (STERIS AST) is a global provider of contract sterilization and laboratory testing services, serving manufacturers of medical devices, pharmaceuticals, and pharmaceutical packaging. As a division of STERIS plc, one of the world's largest infection-prevention and health-science technology companies, STERIS AST operates more than 60 processing facilities across the world, offering customers a technology-neutral, globally coordinated network for product sterilization and microbial reduction. The company's primary clients are healthcare product manufacturers who require validated, regulatory-compliant sterilization and analytical testing to bring safe products to market.

The centerpiece of STERIS AST's offering is its contract sterilization service (Sterilizzazione a contratto), delivered through a portfolio of six core technologies: gamma irradiation using cobalt-60 sources, accelerated electron beam (e-beam) processing, X-ray irradiation, ethylene oxide (ossido di etilene) gas sterilization, vaporized hydrogen peroxide (VHP), and saturated steam. Because each technology has distinct penetration characteristics, dose uniformity profiles, and material compatibility requirements, STERIS AST positions itself as technology-neutral, helping customers select the method best suited to their specific product material, packaging geometry, and regulatory pathway rather than defaulting to a single modality.

Sterilization is supported by comprehensive laboratory testing services (Servizi di Prove di Laboratorio) that span both microbiological and analytical disciplines. Microbiological testing capabilities include bioburden enumeration, sterility testing, biological indicator (BI) qualification, endotoxin/pyrogen evaluation, and microbial identification — all critical inputs for dose-setting studies and ongoing process verification under ISO 11137 and related standards. Analytical and physicochemical testing of products and packaging assesses compatibility, extractables and leachables, residual ethylene oxide (EtO) and ethylene chlorohydrin levels, and package integrity, providing the full validation evidence package required by regulatory bodies such as the FDA, EMA, and ISO 13485 quality systems.

A dedicated dosimetry service (Servizi Dosimetri) supports the sterilization process by supplying and reading red perspex pellet (PMMA) and alanine dosimeters — the two reference dosimeter systems recognized internationally for measuring absorbed ionizing radiation dose during gamma, e-beam, and X-ray processing. Accurate dosimetry mapping is the foundation of dose validation and routine process control for radiation sterilization, and STERIS AST's in-house dosimetry capability ensures continuity between process development, validation, and production-release activities.

Global facility coverage exceeds 60 sites, encompassing a geographic footprint across North America, Europe, Asia-Pacific, and Latin America. This scale enables customers to qualify multiple processing sites for business-continuity planning or to locate processing close to their manufacturing or distribution centers, reducing transit time and cold-chain risk. The company's proprietary STERILINK℠ portal provides customers with real-time, interactive online visibility into the status of their product at STERIS AST processing facilities, delivering electronic records, processing certificates, and traceability data directly into customers' supply-chain systems.

STERIS AST supports its clients' complex regulatory and process challenges through its TechTeam℠ program, a team of dedicated technical professionals who provide expert guidance on sterilization process development, validation strategy, dose-setting, packaging compatibility, and laboratory testing interpretation. These specialists publish peer-reviewed industry articles in collaboration with sector journals, produce downloadable white papers (TechTips), and host free TechTalk webinar series — evidence of the organization's standing as a technical authority in sterilization science and a resource well beyond transactional processing.

Quality credentials at STERIS AST facilities typically include ISO 13485 certification for medical device quality management systems and ISO/IEC 17025 accreditation for specific laboratory testing and dosimetry activities, with individual site accreditations varying by location and scope. Many facilities hold national regulatory approvals relevant to pharmaceutical GMP requirements, supporting product release for pharmaceutical manufacturers operating under cGMP frameworks in their respective jurisdictions. This combination of global reach, multi-technology capability, validated laboratory services, and deep regulatory expertise makes STERIS AST a widely trusted contract sterilization and testing partner for medical device and pharmaceutical supply chains worldwide.