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ANSI/AAMI ST108: Sterile Processing Water – How Extreme Water Helps You Stay Compliant

April 25, 2025

Extreme Water understands that water quality isn’t just a matter of efficiency—it’s a matter of safety, compliance, and patient well-being. With the release of ANSI/AAMI ST108, healthcare facilities now face new and stricter guidelines for the water used in the sterile processing of medical devices. Extreme Water is here to help your facility adapt, comply, and perform with confidence.

🔹 What Is ANSI/AAMI ST108?

ANSI/AAMI ST108 is the standard governing the quality of water used for cleaning, disinfecting, and sterilizing reusable medical instruments. Developed by the Association for the Advancement of Medical Instrumentation (AAMI), this standard replaces the previous TIR34 technical report and establishes clear compliance requirements for healthcare facilities nationwide.

The goal? Ensure that every drop of water used in sterile processing supports safer surgeries, cleaner instruments, and better patient outcomes.

🔹 Key Areas Covered by ST108

✔️ Water Quality Categories

  • Utility Water – Used in the initial rinse/wash stage

  • Critical Water – Used for final rinses and sensitive instruments

  • Steam – For sterilization through steam generation

✔️ Requirements for:

  • pH, microbial content, conductivity, and temperature

  • Monitoring and preventive maintenance

  • Emergency procedures during system failures or boil advisories

  • Assigning a dedicated Water Management Team

🔹 Why Is This Standard So Important?

Contaminated water in sterile processing can lead to:

  • Instrument corrosion

  • Biofilm buildup

  • Reduced effectiveness of disinfectants

  • Surgical complications or infections

Compliance with ST108 is no longer optional—it’s the new industry benchmark for safety and regulatory adherence.

🔹 How Extreme Water Services Supports ANSI/AAMI ST108 Compliance

Located in Houston, Texas and with service technicians in Austin, San Antonio, Corpus Christi and the Rio Grande Valley, Extreme Water specializes in industrial and commercial maintenance of water treatment equipment, offering customized systems that meet even the most stringent standards. We work closely with hospitals, surgical centers, and outpatient facilities to help them prepare for and comply with ANSI/AAMI ST108.

Our Specialized Services Include:

  • Reverse Osmosis (RO) System Installation & Maintenance

  • Deionization (DI) Water System Design

  • Steam Condensate Polisher Systems

  • Water Softener Preventive Maintenance

  • Salt & Brine Deliveries Across Texas

  • Confined Space Entry Resin Rebed Services

Every system we install is designed with efficiency, performance, and compliance in mind.

🔹 Extreme Water Technology Built for Compliance

We offer tailored solutions including:

  • High-purity DI water systems for final rinse and sensitive instrument care

  • Custom RO configurations for bacterial and mineral reduction

  • Monitoring and maintenance plans that meet routine testing requirements

  • Emergency 24/7 support to keep your systems compliant and operational

Need a reliable partner for critical water system design? Our systems are engineered to deliver consistent purity and meet ST108-defined microbial and chemical thresholds.

🔹 Facilities We Serve

Extreme Water works with a wide range of medical and surgical clients, including:

  • Hospitals and Emergency Care Centers

  • Outpatient Surgery Clinics

  • Dental and Dermatology Clinics with sterilization needs

  • Laboratories and Specialty Medical Offices

Whether you’re upgrading a legacy system or building a new sterile processing suite, we’re here to guide every step.

🔹 Don’t Let Non-Compliance Put Your Facility at Risk

Failure to meet ST108 standards could result in:

  • Shutdown of surgical operations

  • Failed cleanliness testing of instruments

  • Costly delays and emergency repairs

  • Regulatory scrutiny and reputational harm

Extreme Water provides the assurance your facility needs to maintain uninterrupted, ST108-compliant operations.

🔹 Partner with Extreme Water for a Seamless Transition

Extreme Water Services is your local expert for water treatment system compliance in Texas. With deep industry knowledge and hands-on expertise, we’ll help you design, implement, and maintain a water system that aligns with ANSI/AAMI ST108 and keeps your instruments—and your patients—safe.

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