ISO 10225-2013 PDF

Full title and description

ISO 10225:2013 — Gas welding equipment — Marking for equipment used for gas welding, cutting and allied processes. This one-page International Standard defines the standardized gas letter codes and marking conventions to be used on gas-welding, cutting and allied equipment (for situations when the full gas name cannot be used).

Abstract

ISO 10225:2013 specifies the gas letter code to be used for marking equipment for gas welding, cutting and allied processes when the full name of the gas cannot be used. The intent is to provide a concise, unambiguous marking system for compact components and fittings.

General information

• Status: Published (International Standard, confirmed after systematic review).
• Publication date: 2013-11 (first edition: November 2013).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.160.30 (Welding equipment).
• Edition / version: Edition 1 (2013).
• Number of pages: 1.

All of the items above are taken from the ISO bibliographic record and the standard summary (ISO/TC 44/SC 8). The ISO record shows the document was last reviewed and confirmed in 2024 and remains current.

Scope

ISO 10225:2013 applies to marking of equipment used for gas welding, cutting and allied processes where space or other constraints prevent the use of a full gas name. It establishes the short (letter) codes to identify gases and, where needed, clarifies manufacturer responsibilities for indicating exact gas composition or compatibility (for example when a generic code is used). Typical items covered include torches, torch heads, mixers, hoses, regulators, fittings and other components where concise marking is required.

Key topics and requirements

• Definition and assignment of standardized gas letter codes for common welding and cutting gases and mixtures.
• Rules for applying markings where full gas names or chemical symbols cannot be used (size, legibility and location considerations implied for compact parts).
• Manufacturer obligations when a generic code (e.g., for fuel gas mixtures) is used — provide instructions/specification of exact gases and compatibility.
• Harmonization with regional adoptions (the ISO text has been taken up as EN ISO in Europe).

Typical use and users

Primary users are equipment manufacturers, OEM designers, labellers and marking engineers for welding and cutting tools, plus safety officers, workshop managers, maintenance personnel, suppliers and inspectors who need a concise, standardized gas identification system for small components and fittings. Procurement and compliance teams also use the standard to verify correct marking practices on incoming equipment.

Related standards

ISO 10225:2013 was prepared by ISO/TC 44 (Welding and allied processes), subcommittee SC 8 (gas welding equipment) and complements other ISO and regional standards on welding equipment and gas handling. The ISO text has been adopted as a European standard (EN ISO 10225:2021) without modification in the CEN system, and it should be considered alongside other national/adopted versions and equipment-specific standards for regulators, couplings and hoses.

Keywords

gas welding, marking, gas letter code, oxy-fuel, cutting, torch, regulator, hoses, fittings, equipment identification, ISO 10225:2013.

FAQ

Q: What is this standard?

A: ISO 10225:2013 is an ISO International Standard that defines a system of short (letter) codes for marking gas welding, cutting and allied equipment when the full gas name cannot be used.

Q: What does it cover?

A: It covers the assignment and use of gas letter codes on equipment components (e.g., torches, mixers, hoses, regulators and fittings) where space or other constraints prevent full names, and it sets out manufacturer responsibilities when generic codes are used.

Q: Who typically uses it?

A: Manufacturers and designers of gas welding/cutting equipment, safety officers, workshop managers, maintenance teams, suppliers, inspectors and procurement/compliance personnel.

Q: Is it current or superseded?

A: ISO 10225:2013 was published in November 2013 and the ISO bibliographic record shows it was reviewed and confirmed in 2024; it remains current as the 2013 edition.

Q: Is it part of a series?

A: It was developed by ISO/TC 44 (Welding and allied processes), subcommittee SC 8 (gas welding equipment). It is a focused, standalone marking standard but should be used in combination with other welding and gas-handling standards as appropriate. Regional adoptions (for example EN ISO 10225:2021) reflect its harmonized use.

Q: What are the key keywords?

A: Gas welding, marking, gas letter code, oxy-fuel, torch, regulator, hose, fittings, equipment identification, ISO 10225:2013.