What is ISO 11513 - Gas cylinders about?
ISO 11513 is a series on gas cylinders. A gas cylinder is a pressure vessel for the storage and containment of gases at above atmospheric pressure. High-pressure gas cylinders are also called bottles. ISO 11513 specifies minimum requirements for the material, design, construction, workmanship, examination and testing at the manufacture of refillable welded steel cylinders for the sub-atmospheric pressure storage of liquefied and compressed gases. ISO 11513 only applies to the cylinders themselves, irrespective of the materials contained therein (e.g., adsorbents, media, materials and/or gases) and other related applications. The cylinders have a test pressure not greater than 42 bar and a water capacity from 0,5 l up to and including 12 l exposed to ambient temperatures for the purpose of facilitating the sub-atmospheric pressure storage of liquefied and compressed gases as adsorbed gases. Minimum requirements for inspection at the time of fill and periodic inspection and testing are also specified in ISO 11513.
Who is ISO 11513 - Gas cylinders for?
ISO 11513 on the gas cylinder is useful for:
- Gas cylinder manufacturers
- Design engineers
- Quality control personnel
Why should you use ISO 11513 - Gas cylinders?
Inside the cylinder the stored contents may be in a state of compressed gas, vapour over liquid, supercritical fluid, or dissolved in a substrate material, depending on the physical characteristics of the contents. 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. ISO 11513 provides a specification for the design, manufacture, use and periodic inspection and testing of a refillable welded steel cylinder necessary to facilitate sub-atmospheric pressure gas packaging technology on a worldwide basis. The specifications given are based on knowledge of, and experience with, materials, design requirements, manufacturing processes and control at the manufacture of cylinders in common use in the countries of the ISO member bodies.
The pressure shell of the cylinder is fabricated by manufacturing a cylindrical shape with a base and welding a machined plug (boss) or semi-ellipsoidal or torispherical shape onto the open end of the shell to form the cylinder. This method of fabrication allows for the insertion of material prior to sealing the cylinder. A further objective of ISO 11513 is to balance design and economic efficiency against international acceptance and universal utility. ISO 11513 aims to eliminate the concerns about climate, duplicate inspections, and restrictions currently existing because of the lack of definitive International Standards. Using ISO 11513 you can specify minimum requirements for the material, design, construction, workmanship, examination and testing at the manufacture of refillable welded steel cylinders.
What’s changed since the last update?
BS ISO 11513:2019 supersedes BS ISO 11513:2011. BS ISO 11513:2019 includes some technical changes with respect to BS ISO 11513:2011. These include:
- References to packing instruction P200 of the UN Model Regulations have been replaced with packing instruction P208 as this document is referenced in only P208 of the UN Model Regulations
- The prohibition on the use of ultrasonic testing during periodic inspection and test has been removed from Annex B
- The unit “weight” has been replaced with “mass” to align with ISO 80000