EN 1518:2026

Non-destructive testing - Leak testing - Characterization of mass spectrometer leak detectors EN 1518:2026

Publication date:   Jun 11, 2026

Scope

This document defines terms and specifies procedures for the characterization of mass spectrometer leak detectors (MSLD). This document is not intended to provide a complete set of specifications for acceptance testing, but rather a description of procedures that can be applied without specialized calibration equipment.
The methods described in this document are applicable without restrictions to helium as the tracer gas. For other gases, additional precautions might be necessary.
These methods are applicable to commonly available MSLD, based on the present level of technology, which might be able to measure leakage rates down to 10−12 Pa⋅m3/s.