Autoclave Validation Toolkit: EN 285 & ISO 17665 Steam Sterilisation Analysis

The Autoclave Validation Toolkit (AVT) is a practical engineering toolkit for steam sterilisation and autoclave validation. It helps validation engineers calculate saturated steam conditions, convert pressure units, assess equilibration time and calculate F₀ lethality from validation data.

In your toolkit:

  • Equilibration Time Analysis
  • F₀ Lethality Analysis
  • Saturated Steam Temperature
  • Saturated Steam Pressure
  • Pressure Converter
  • Time Calculator

What AVT does

AVT supports routine engineering and validation tasks associated with steam sterilisation and thermometric testing. The tools provide fast, reliable calculations to support cycle development, troubleshooting, and interpretation of autoclave performance.

Equilibration Time Analysis

Upload your spreadsheet and check equilibration time results in seconds.

F₀ Lethality Analysis

Upload your validation data and see Fo Lethality results in seconds.

Saturated Steam Temperature (from pressure)

Calculate saturated steam temperature from absolute pressure. As a spot check or in a bulk spreadsheet upload.

Saturated Steam Pressure (from temperature)

Calculate saturated steam pressure from temperature under saturated steam conditions. As a spot check or in a bulk spreadsheet upload.

Built for Validation Engineers

AVT is intended for engineers and validation professionals working in pharmaceutical, biotechnology, and healthcare environments.

The tools support validation activities including:
  • cycle development
  • troubleshooting
  • interpretation of thermometric test results

Engineering and calculation basis

Calculations are based on recognised steam property relationships (IAPWS IF97).

All calculations are performed in a controlled backend environment to ensure deterministic, reproducible results.

AVT is an engineering analysis tool and is not intended to replace formal GMP documentation or regulatory records.
Autoclave Validation Platform

Saturated Steam Tables, Equilibration Time & Lethality Analysis!

AVT is available to use now, with no account required, just click the link below to analyse your data.
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Frequently asked questions

What is saturated steam temperature?

The temperature at which steam is in equilibrium with liquid water at a given pressure.

These values correspond to standard steam tables and are calculated in AVT using recognised steam property relationships.

What is saturated steam pressure?

The pressure at which steam is in equilibrium with liquid water at a given temperature.

These values correspond to standard steam tables and are calculated in AVT using recognised steam property relationships.

What is the difference between gauge and absolute pressure?

Gauge pressure is measured relative to atmospheric pressure, whereas absolute pressure includes atmospheric pressure. Saturated steam properties must be calculated using absolute pressure.

Why is absolute pressure required?

Saturated steam properties are defined using absolute pressure, not gauge pressure.

Can I upload data files to AVT?

Yes, AVT supports CSV and Excel files for bulk calculations.

Are these values taken from steam tables?

Yes, calculations are based on recognised steam property relationships (IAPWS IF97), equivalent to standard steam tables.