ISO/TC 220/WG 1 - Design and construction

This document specifies requirements for the design, fabrication, inspection and testing of static vacuum-insulated cryogenic vessels designed for a maximum allowable pressure of more than 0,5 bar. This document applies to static vacuum-insulated cryogenic vessels for fluids and does not apply to vessels designed for toxic fluids. This document also gives guidance for static vacuum-insulated cryogenic vessels designed for a maximum allowable pressure of not more than 0,5 bar.

This document specifies requirements for the design, fabrication, inspection and testing of large transportable vacuum-insulated cryogenic vessels of more than 450 l volume, which are permanently (fixed tanks) or not permanently (demountable tanks and portable tanks) attached to a means of transport, for one or more modes of transport. This document applies to large transportable vacuum-insulated cryogenic vessels for fluids specified in 3.1 and does not apply to vessels designed for toxic fluids. This document does not include the general vehicle requirements, e.g. running gear, brakes, lighting, etc. NOTE 1 This document does not cover specific requirements for refillable liquid-hydrogen tanks that are primarily dedicated as fuel tanks in vehicles. For fuel tanks used in land vehicles, see ISO 13985. NOTE 2 This document does not cover specific requirements for refillable liquid hydrogen and LNG tanks that are primarily dedicated as fuel tanks in vehicles. For fuel tanks used in vehicles, see ISO 13985.

ISO 21028-2:2018 specifies the toughness requirements of metallic materials for use at temperatures between −20 °C and −80 °C to ensure their suitability for cryogenic vessels. This document is applicable to fine-grain and low-alloyed steels with specified yield strength ≤460 N/mm2, aluminium and aluminium alloys, copper and copper alloys and austenitic stainless steels. NOTE For steel materials listed in EN 13445‑2 or EN 13480‑2 or for steel materials and weldings complying with the same fundamental safety requirements, the requirements for prevention of brittle fracture at low temperatures according to EN 13445‑2:2014, Annex B, method 2, or EN 13480‑2:2012, Annex B, method 2 can be applied.

ISO 21029-1:2018 specifies requirements for the design, fabrication, type test and initial inspection and test of transportable vacuum-insulated cryogenic pressure vessels of not more than 1 000 l volume. This document applies to transportable vacuum-insulated cryogenic vessels for fluids as specified in 3.1 and Table 1 and does not apply to such vessels designed for toxic fluids. NOTE 1 This document does not cover specific requirements for refillable liquid hydrogen and LNG tanks that are primarily dedicated as fuel tanks in vehicles. For fuel tanks used in land and marine vehicles, see ISO 13985. NOTE 2 Specific requirements for open top dewards are not covered by this document.

ISO 21010:2017 specifies gas/material compatibility requirements (such as chemical resistance) for cryogenic vessels, but it does not cover mechanical properties (e.g. for low-temperature applications). ISO 21010:2017 provides general guidance for compatibility with gases and detailed compatibility requirements for oxygen and oxygen-enriched atmospheres. This document also defines the testing methods for establishing oxygen compatibility of materials (metallic and non-metallic) to be used for cryogenic vessels and associated equipment. ISO 21010:2017 focuses on materials that are normally with or could be in contact with cryogenic fluids.

ISO 21028-1:2016 specifies the toughness requirements of metallic materials for use at a temperature below -80 °C to ensure their suitability for cryogenic vessels. ISO 21028-1:2016 is not applicable to unalloyed steels and cast materials.

ISO 21010:2014 specifies gas/materials compatibility requirements (such as chemical resistance) for cryogenic vessels, but it does not cover mechanical properties (e.g. for low temperature applications). It gives general guidance for compatibility with gases and detailed compatibility requirements for oxygen and oxygen-enriched atmospheres. ISO 21010:2014 also defines the testing methods for establishing oxygen compatibility of materials (metallic and non-metallic) to be used for cryogenic vessels and associated equipment. ISO 21010:2014 focuses on materials that are normally with or could be in contact with cryogenic fluids.

ISO 21009-1:2008 specifies requirements for the design, fabrication, inspection and testing of static vacuum-insulated cryogenic vessels designed for a maximum allowable pressure of more than 0,5 bar. It applies to specified static vacuum-insulated cryogenic vessels for fluids, and does not apply to vessels designed for toxic fluids. For static vacuum-insulated cryogenic vessels designed for a maximum allowable pressure of not more than 0,5 bar, ISO 21009 may be used as a guide.

ISO 20421-1:2006 specifies requirements for the design, fabrication, inspection and testing of large transportable vacuum insulated cryogenic vessels of more than 450 l volume, which are permanently (fixed tanks) or not permanently (demountable tanks and portable tanks) attached to a means of transport, for one or more modes of transport. ISO 20421-1:2006 applies to large transportable vacuum insulated cryogenic vessels for cryogenic fluids, and does not apply to vessels designed for toxic fluids. ISO 20421-1:2006 does not include the general vehicle requirements, e.g. running gear, brakes, lighting, etc., which are in accordance with the relevant standards/regulations.

ISO 21029-1:2004 specifies requirements for the design, fabrication, inspection and testing of transportable vacuum-insulated cryogenic vessels of not more than 1 000 l volume designed to operate at a maximum permissible pressure greater than atmospheric. ISO 21029-1:2004 applies to transportable vacuum-insulated cryogenic vessels for non-toxic gases (asphyxiant, oxidizing and flammable).

ISO 21028-1:2004 specifies the toughness requirements of metallic materials for use at temperatures below -80 °C to ensure their suitability for cryogenic vessels. It is not applicable to unalloyed steels and cast materials.

ISO 21028-2:2004 specifies the toughness requirements of metallic materials for use at temperatures between -20 °C and -80 °C to ensure their suitability for cryogenic vessels. It is applicable to fine-grain and low-alloyed steels with specified yield strength less than or equal to 460 N/mm2, aluminium and aluminium alloys, copper and copper alloys and austenitic stainless steels.

ISO 21010:2004 specifies gas/materials compatibility requirements (such as chemical resistance) for cryogenic vessels but it does not cover mechanical properties (e.g. for low temperature applications). It gives general guidance for compatibility with gases and detailed compatibility requirements for oxygen and oxygen-enriched atmospheres. ISO 21010:2004 also defines the testing methods for establishing oxygen compatibility of materials (metallic and non-metallic) to be used for cryogenic vessels and associated equipment. It focuses on materials that are normally with or could be in contact with cryogenic fluids.