ISO 21013-2:2007/Amd 1:2018

Overview

ISO 21013-2:2007/Amd 1:2018 is an important amendment to the international standard covering pressure-relief accessories for cryogenic vessels. Specifically, it addresses non-reclosable pressure-relief devices utilized in cryogenic service environments. Published by the International Organization for Standardization (ISO), this amendment updates safety and material requirements to enhance reliability and performance in handling extremely low-temperature fluids and gases under pressure.

This standard falls under ISO Technical Committee ISO/TC 220, which specializes in cryogenic vessels. It serves a vital role in ensuring safety for industries relying on cryogenic storage and transport, such as aerospace, medical, and industrial gas sectors.

Key Topics

• Non-Reclosable Pressure-Relief Devices: Focuses on safety components designed to release pressure without the ability to reseal, crucial for emergency venting in cryogenic systems.

• Material Requirements: The amendment specifies that metallic materials intended for use with acetylene-containing mixtures must have less than 65% copper content. This minimization of copper is critical for compatibility and safety in cryogenic mixtures.

• Cryogenic Service Safety: Emphasizes the safe design and operational guidelines for pressure-relieving accessories exposed to extremely low temperatures, addressing the risk of material failure and operational hazards.

• International Collaboration: Developed through global cooperation between ISO member bodies and liaising with the International Electrotechnical Commission (IEC), ensuring wide applicability and harmonization with related standards.

Applications

ISO 21013-2:2007/Amd 1:2018 is applicable for:

• Cryogenic Storage Vessels: Ensuring pressure-relief devices meet stringent safety and material standards for tanks storing liquefied gases like oxygen, nitrogen, and natural gas.

• Industrial Gas Production and Transport: Supporting safe venting in pipelines and containers used in the supply chain of industrial gases.

• Medical Gas Systems: Protecting vital cryogenic storage used in medical applications by ensuring reliable pressure relief under emergency conditions.

• Aerospace and Research Facilities: Facilitating the use of cryogenic vessels with safe pressure-relief for propulsion fuels and scientific experiments requiring ultra-low temperature environments.

This standard provides practical guidelines for manufacturers, safety inspectors, and engineers specializing in cryogenic vessel design, operation, and maintenance.

Related Standards

Professionals working with ISO 21013-2:2007/Amd 1:2018 often refer to related standards for comprehensive cryogenic system safety:

• ISO 21013-1: Covers reclosable pressure-relief devices for cryogenic services, providing complementary safety requirements.

• ISO 21013 Series: The full series addresses various aspects of pressure-relief accessories for cryogenic vessels, outlining testing, design, and performance criteria.

• ISO/IEC Directives Part 1 & 2: These provide the procedural framework for developing and maintaining ISO standards, ensuring editorial clarity and technical consistency.

• Safety Standards for Industrial Gases: Such as those from the Compressed Gas Association (CGA), which complement ISO standards with application-specific guidelines.

By aligning with these related standards, users can establish robust, internationally recognized safety protocols for handling cryogenic pressure-relief systems.

Keywords: ISO 21013-2 amendment, cryogenic vessels safety, non-reclosable pressure-relief devices, cryogenic service, pressure-relief accessories, metallic materials copper content, acetylene mixtures safety, cryogenic storage standards, industrial gas safety, ISO cryogenic standards.