ISO 17025 Accredited Autoclave Sterilization Calibration & Validation Services

Autoclave sterilization calibration is the process of verifying that an autoclave’s temperature sensors, pressure gauges, and timing systems are accurate and traceable to NIST national measurement standards. NIST-traceable reference RTDs are compared against the autoclave’s installed sensors in the chamber, drain, and jacket. The pressure gauge is compared against a calibrated reference standard, and the cycle timer is verified. ISO/IEC 17025 accredited calibration certificates include documented measurement uncertainty and satisfy GMP, FDA, CAP, CLIA, and regulatory requirements for sterilization equipment qualification.

Autoclave sterilization validation is the documented process of demonstrating that a specific autoclave, running a specific sterilization cycle, consistently achieves a predetermined sterility assurance level (SAL). Validation includes IQ, OQ, and PQ phases and is required by FDA 21 CFR Parts 210/211, ISO 17665, ISO 13485, and GMP programs for any facility conducting terminal sterilization of drug products, biologics, medical devices, or laboratory media. Without documented validation, the sterility of items processed in the autoclave cannot be confirmed.

IQ/OQ/PQ is a three-phase qualification framework. Installation Qualification (IQ) verifies the autoclave was installed per manufacturer specifications and regulatory requirements. Operational Qualification (OQ) verifies it operates within specified parameters, including empty chamber thermal distribution, cycle reproducibility, and safety system verification. Performance Qualification (PQ) demonstrates it consistently delivers the required sterile outcome under actual load conditions, including loaded chamber thermal mapping, heat penetration testing, biological indicator verification, and F₀ lethality calculations. All three phases produce formal documentation packages for FDA inspections and regulatory audits.

Temperature and pressure sensors should be calibrated semi-annually to annually in GMP and clinical environments. Full IQ/OQ/PQ requalification is typically required annually or following any significant change. CAP/CLIA laboratories must maintain calibration records at minimum annually. Revalidation is always required after autoclave relocation, sensor or controller replacement, or any cycle parameter modification. Femto Scientific can help establish and document appropriate calibration and requalification intervals for your specific compliance program.

Yes. Femto Scientific holds ISO/IEC 17025:2017 accreditation for temperature and pressure calibration. Our accredited certificates include documented expanded measurement uncertainty (k=2, 95% confidence), NIST traceability documentation, and as-found/as-left data required by GMP, FDA, CAP, and CLIA programs. Our certificates are accepted by FDA inspectors, CAP surveyors, and international quality auditors as evidence of autoclave performance and regulatory compliance.