ISO 21009-1-2022 PDF

Full title and description

ISO 21009-1:2022 — Cryogenic vessels — Static vacuum-insulated vessels — Part 1: Design, fabrication, inspection and tests. This International Standard specifies technical requirements and recommended practices for the design, materials, fabrication, inspection and testing of stationary (static) vacuum‑insulated cryogenic vessels intended for the storage of cryogenic fluids.

Abstract

The document defines minimum requirements for the safe design, manufacture, inspection and verification testing of static vacuum‑insulated cryogenic vessels with a maximum allowable pressure greater than 0.5 bar (50 kPa). It excludes vessels specifically designed for toxic fluids and provides guidance for vessels with a maximum allowable pressure of 0.5 bar or less. Topics covered include mechanical and thermal design principles, insulation and vacuum systems, welding and fabrication, non‑destructive testing, pressure and leak testing, marking and documentation and quality control provisions.

General information

• Status: Published
• Publication date: August 2022
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 23.020.40 (Cryogenic vessels)
• Edition / version: Edition 2 (2022)
• Number of pages: 125

Scope

ISO 21009-1:2022 applies to static (fixed) vacuum‑insulated vessels used to store cryogenic fluids where the maximum allowable pressure exceeds 0.5 bar (50 kPa). The standard sets out design and fabrication requirements, inspection and testing procedures applicable to these vessels. It does not apply to vessels specifically designed for toxic fluids. The standard also offers guidance for static vacuum‑insulated vessels with maximum allowable pressures at or below 0.5 bar.

Key topics and requirements

• Design principles for mechanical strength and thermal performance (pressure/temperature limits, MAWP calculations).
• Material selection for cryogenic service (metallurgy, toughness at low temperatures, corrosion considerations).
• Requirements for vacuum‑insulation systems and insulating materials to limit heat ingress and boil‑off.
• Structural and support design (supports, saddles, anchoring, thermal contractions).
• Welding, fabrication and assembly requirements, including qualified welding procedures and personnel.
• Non‑destructive testing and inspection regimes (radiographic, ultrasonic, dye penetrant, visual).
• Hydrostatic, pneumatic and leak testing procedures and acceptance criteria.
• Requirements for pressure‑relief devices, vents and protection against overpressure.
• Marking, documentation, certificates of conformity and traceability requirements.
• Quality assurance, factory inspection and final verification testing.
• Guidance for vessels below the 0.5 bar threshold and exclusions (toxic fluids).

Typical use and users

ISO 21009-1 is used by designers and manufacturers of static cryogenic storage vessels, quality and inspection engineers, testing laboratories, plant engineers, procurement specialists, regulatory authorities, and end users operating installations that store cryogenic liquids (for example industrial gas companies, research facilities, medical gas suppliers and energy applications). It supports conformity assessment, procurement specifications and safe installation/commissioning practices.

Related standards

Standards commonly used with or referenced by ISO 21009-1 include other parts of the ISO 21009 series (for example Part 2 — operational requirements), national and regional adoptions (EN/ISO variants), EN 13458 series (cryogenic vessels), ISO 21013 series (pressure‑relief accessories and sizing), and relevant pressure‑vessel and piping codes (for example national pressure vessel regulations or the ASME Boiler & Pressure Vessel Code where applicable). Users should consult local regulations and installation standards for supplementary requirements (safety distances, occupational safety, site installation rules).

Keywords

cryogenic vessels, vacuum‑insulated, static vessels, MAWP, design, fabrication, inspection, testing, insulation, pressure‑relief, non‑destructive testing, ISO 21009

FAQ

Q: What is this standard?

A: ISO 21009-1:2022 is the ISO International Standard that sets requirements for design, fabrication, inspection and testing of static vacuum‑insulated cryogenic vessels (storage tanks) with maximum allowable pressure above 0.5 bar.

Q: What does it cover?

A: It covers mechanical and thermal design criteria, material selection for cryogenic service, vacuum insulation requirements, fabrication and welding, non‑destructive testing and inspection, pressure and leak testing, marking and documentation and quality assurance for static vacuum‑insulated cryogenic vessels. It excludes vessels designed for toxic fluids and provides guidance for very low‑pressure vessels (≤ 0.5 bar).

Q: Who typically uses it?

A: Vessel designers and manufacturers, inspection and QA engineers, testing laboratories, plant and operations engineers, procurement teams, and regulatory authorities involved in the specification, manufacture, acceptance and safe operation of static cryogenic storage systems.

Q: Is it current or superseded?

A: ISO 21009-1:2022 is the 2nd edition published in August 2022. Users should check for newer revisions or draft updates (standards are periodically reviewed and updates or DIS drafts may be issued) before finalising procurement or compliance activities.

Q: Is it part of a series?

A: Yes. ISO 21009-1 is Part 1 of the ISO 21009 series on static vacuum‑insulated cryogenic vessels. Other related parts cover operational requirements and complementary topics (for example Part 2 addresses operational requirements).

Q: What are the key keywords?

A: cryogenic vessels; vacuum‑insulated; static storage; design; fabrication; inspection; testing; MAWP; pressure‑relief; non‑destructive testing; ISO 21009.