scope:

This document describes the use of modal acoustic emission (MAE) testing during periodic inspection and testing of hoop-wrapped and fully-wrapped composite transportable gas cylinders, tubes and large tubes with aluminium alloy, steel or non-metallic liners construction intended for compressed and liquefied gases under pressure.

This document addresses the periodic inspection and testing of composite cylinders constructed to ISO 11119-1, ISO 11119-2, ISO 11119-3, ISO 11515 and ISO/TS 17519 and can be applied to other composite cylinders designed to comparable standards.

NOTE Unless noted by exception, the use of the word "cylinder" in this document refers to both cylinders and tubes.