What is BS EN ISO 11114‑1 about?
BS EN ISO 11114 is a series on gas cylinders. BS EN ISO 11114‑1 provides requirements for the selection of safe combinations of the metallic cylinder and valve materials and cylinder gas content. Seamless metallic, welded metallic and composite gas cylinders and their valves, used to contain compressed, liquefied and dissolved gases are considered.
In BS EN ISO 11114‑1 the term “cylinder” refers to transportable pressure receptacles, which also include tubes and pressure drums.
Note 1: Aspects such as the quality of delivered gas products are not considered in BS EN ISO 11114‑1.
Who is BS EN ISO 11114‑1 for?
BS EN ISO 11114‑1 on gas cylinders is useful for:
- Petrochemical industry
- Suppliers and distributors of gas cylinders
- Cylinder manufacturers
- Design engineers
- Valve manufacturers
Why should you use BS EN ISO 11114‑1?
Industrial, medical and special gases (for example, high-purity gases, calibration gases) can be transported or stored in gas cylinders. BS EN ISO 11114‑1 discusses an essential requirement of the material from which such gas cylinders and their valves are manufactured is compatibility with the gas content.
The compatibility of cylinder materials with gas content has been established over many years by practical application and experience. BS EN ISO 11114‑1 identifies the compatibility of most materials used to manufacture gas cylinders and valves.
As specified in BS EN ISO 11114‑1 the most used metallic materials for cylinders are (among others) carbon manganese steel, chromium-molybdenum steel, chromium-molybdenum nickel steel, stainless steel and aluminium alloys. The most commonly used metallic materials for valve bodies and internal gas wetted parts are brass and other similar copper-based alloys, carbon steel, stainless steel, refined nickel and nickel alloys, Cu–Be (2 %) and aluminium alloys.
BS EN ISO 11114‑1 guides you to select safe combinations of the metallic cylinder, the valve, and the gas within.
What’s changed since the last update?
BS EN ISO 11114‑1:2020 supersedes BS EN ISO 11114‑1:2012+A1:2017. BS EN ISO 11114‑1:2020 includes some technical changes with respect to BS EN ISO 11114‑1:2012+A1:2017. These include:
- Inclusion of all changes in ISO 11114-1:2012/Amd.1:2017
- Clarification of the definition of dry
- Addition of notes in Table 1