ISO 21009-2-2024 PDF

Full title and description

St ISO 21009-2-2024 — Cryogenic vessels — Static vacuum-insulated vessels — Part 2: Operational requirements. This international standard specifies operational requirements for static vacuum‑insulated cryogenic vessels designed for a maximum allowable pressure greater than 50 kPa (0,5 bar) and can be used as guidance for vessels with lower maximum allowable pressure.

Abstract

This document sets out operational requirements, usage and safety considerations for static vacuum‑insulated cryogenic vessels (fixed installations). It applies to vessels intended for cryogenic fluids covered by ISO 21009‑1 and includes notes on installation, local regulatory interactions (safety distances and occupational health) and additional requirements for large or field‑fabricated vessels.

General information

• Status: Published.
• Publication date: 30 September 2024 (ISO publication: September 2024).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 23.020.40 (Cryogenic vessels).
• Edition / version: Edition 3 (2024).
• Number of pages: 16 pages.

Scope

Specifies operational requirements for static vacuum‑insulated vessels designed for cryogenic fluids where the maximum allowable pressure exceeds 50 kPa (0,5 bar). It may also be applied as guidance for vessels with maximum allowable pressure below 50 kPa. The standard is intended to be used in conjunction with the design/fabrication/inspection requirements in ISO 21009‑1. Additional national or local regulatory requirements (for example safety distances or occupational safety) can apply and take precedence where applicable.

Key topics and requirements

• Operational procedures and responsibilities for owners, operators and maintainers of static vacuum‑insulated cryogenic vessels.
• Requirements and guidance tied to vessel maximum allowable pressure (primary focus > 50 kPa / 0,5 bar).
• Interfaces with design and testing requirements defined in ISO 21009‑1 (e.g., permitted fluids, inspection regimes).
• Notes on installation, re‑installation and situations where additional site‑specific or regulatory rules apply (safety distances, occupational health and safety).
• Special considerations for large scale and field‑fabricated vessels (additional operational controls and checks).

Typical use and users

Used by manufacturers, equipment installers, plant operators, commissioning and maintenance teams, safety and compliance officers, inspection bodies and regulatory authorities involved with cryogenic storage and process equipment at industrial, medical and energy facilities. It is a reference during commissioning, operation, maintenance planning and safety audits.

Related standards

ISO 21009‑1 (Design, fabrication, inspection and tests) — complements Part 2 by covering design and testing requirements; regional/adopted EN/DIN/UNE national versions may exist that adopt ISO 21009‑2 text with national forewords. The 2024 edition of ISO 21009‑2 replaces the previous 2015 edition.

Keywords

cryogenic vessels; static vacuum‑insulated vessels; operational requirements; ISO 21009; pressure vessels; cryogenic storage; inspection; maintenance; safety; installation.

FAQ

Q: What is this standard?

A: ISO 21009‑2:2024 is the international standard that specifies operational requirements for static vacuum‑insulated cryogenic vessels (fixed installations).

Q: What does it cover?

A: It covers operational practices, responsibilities, and specific considerations for vessels designed for cryogenic fluids — primarily those with maximum allowable pressure > 50 kPa (0,5 bar) — and provides guidance for lower‑pressure vessels; it also points to interactions with local regulations and additional requirements for large or field‑fabricated vessels.

Q: Who typically uses it?

A: Manufacturers, operators, installers, maintenance and commissioning teams, safety and compliance officers, inspection bodies and regulators involved in cryogenic storage and handling.

Q: Is it current or superseded?

A: Current — ISO 21009‑2:2024 (Edition 3) is published and replaces the earlier ISO 21009‑2:2015 edition.

Q: Is it part of a series?

A: Yes — it is Part 2 of the ISO 21009 series for static vacuum‑insulated cryogenic vessels; Part 1 addresses design, fabrication, inspection and testing (ISO 21009‑1).

Q: What are the key keywords?

A: Cryogenic vessels; static vacuum‑insulated; operational requirements; pressure; inspection; maintenance; safety; ISO 21009.