Air Leak Standards
Air Leak Standards
Reliable, traceable leak standards for pressure-based and flow-based air leak testing systems
Air leak standards provide a cost-effective, stable solution for verifying and calibrating leak detection systems that use air as the process gas. Ideal for pressure decay, vacuum decay, or flow-based testers, they offer repeatable performance without the need for specialty tracer gases.
Leak Standard Configurations
Open Style (Most Common)
- Uses your existing air supply
- Supports single- or dual-connection designs
- Ideal for system verification, fixture integration, and production environments
Reservoir Style
- Self-contained air supply
- Best for stable, low-level leaks without external gas
- Less common for air applications due to typically higher flow ranges
View sample leak configurations in our leak photo gallery.
Typical Specifications
Parameter | Typical Range / Options |
Flow Range | Low-flow: 1×10⁻⁶ to 7×10⁻² atm·cc/s (vacuum or atmosphere calibration) |
High-flow: 0.07 to 100 sccm (NIST-traceable) | |
Fittings | 1/8” M-NPT, 1/4” M-NPT, 10-32 O-ring. Optional: female NPT, VCR, compression, quick connect, KF, or custom |
Leak Styles | Open or Reservoir |
Calibration | ISO/IEC 17025:2017 accredited calibration available (see accredited ranges below) |
Custom flow rates and custom physical configurations are available upon request.
Ordering & Calibration
All air leak standards are manufactured to your specifications and calibrated in our ISO/IEC 17025:2017 A2LA-accredited laboratory. View our full accredited scope here »
- New Standards: Built to meet your flow, pressure, and connection requirements
- Recalibration: Fast turnaround for any manufacturer’s air leak standards
- Accredited Ranges:
- Gas flow into vacuum: 1×10⁻⁶ to 1×10⁻² atm·cc/s
- Gas flow into atmosphere: 5×10⁻⁶ to 7×10⁻² atm·cc/s (~0.07 sccm)
- Higher Flow Rates: NIST-traceable calibrations up to 100 sccm
New to pressure-based leak testing?
Read our guide: Pressure Decay Testing for Leaks Explained
Frequently Asked Questions
Air is economical, readily available, and ideal for applications where detection limits above ~10⁻³ atm·cc/s are acceptable. It also closely matches real-world process conditions for many products.
When properly maintained, leak standards can last indefinitely. All standards should be recalibrated at regular intervals to ensure continued accuracy.
Yes. All calibrations are performed in our ISO/IEC 17025:2017 A2LA-accredited laboratory. Flows within our accredited ranges are fully ISO/IEC 17025 traceable; higher flows (up to 100 sccm) are provided with NIST-traceable calibration.