What is ISO/TS 19016 - Gas cylinders about?
ISO/TS 19016 discusses gas cylinders. A gas cylinder is a pressure vessel for the storage and containment of gases at above atmospheric pressure. ISO/TS 19016 describes the use of modal acoustic emission (MAE) testing during the periodic inspection and testing of hoop wrapped and fully wrapped composite transportable gas cylinders and tubes, with aluminium-alloy, steel, or non-metallic liners or of linerless construction, intended for compressed and liquefied gases under pressure.
ISO/TS 19016 addresses the periodic inspection and testing of composite cylinders constructed to ISO 111191, ISO 111192, ISO 111193, ISO 11515 and ISO/TS 17519 and can be applied to other composite cylinders designed to comparable standards when authorized by the competent authority.
Who is ISO/TS 19016 - Gas cylinders for?
ISO/TS 19016 on the gas cylinder is useful for:
- Gas cylinder manufacturers
- Gas tubes manufacturers
- Design engineers
- Quality control personnel
Why should you use ISO/TS 19016 - Gas cylinders?
A typical gas cylinder design is elongated, standing upright on a flattened bottom end, with the valve and fitting at the top for connecting to the receiving apparatus. In recent years, new non-destructive examination (NDE) techniques have been successfully introduced as an alternative to the conventional retesting procedures of gas cylinders, tubes, and other cylinders. One of the alternative NDE methods for certain applications is acoustic emission testing (AT), which in several countries has proved to be an acceptable testing method applied during the periodic inspection. This AT method is described in ISO 16148, which authorizes pressurization pneumatically to a value equal to 110 % of the cylinder’s working pressure and hydraulic pressurization to a value equal to the cylinder’s test pressure. Since ISO 16148 was developed for periodic inspection and testing of monolithic materials (seamless steel and aluminium-alloy cylinders), the test method was not appropriate for composite cylinders. The modal acoustic emission test method described in ISO/TS 19016 was developed to address this shortcoming.
The MAE test method described in ISO/TS 19016 applies during the periodic inspection and testing, and it uses either hydraulic (liquid) pressurization or pneumatic (gas) pressurization to a level equal to the design test pressure of the cylinder. ISO/TS 19016 detects structural damage that can result in a compromised burst pressure strength in a composite cylinder. The MAE waveforms can be used to identify damage such as fibre breakage and delamination. A Modal acoustic emission waveform is distinguished by the wave (mode) shapes, velocities, waveform energy and frequency spectrums. This Modal acoustic emission test method is not intended for newly manufactured composite cylinders. Using ISO/TS 19016 you can understand the use of modal acoustic emission testing during the periodic inspection and testing of hoop wrapped and fully wrapped composite transportable gas cylinders and tubes.
