What is ISO 4135 - Vocabulary for anaesthetic and respiratory equipment about?
ISO 4135 establishes a vocabulary of terms used for anaesthetic and respiratory equipment and supplies, related devices and supply systems.
To avoid multiple definitions of the same term in different categories, ISO 4135 attempts to ensure consistency by the inclusion of a ‘general’ category, and by use of domain specifiers and unique pre-coordinated domain-specific term names.
In addition to terms and definitions used in two of the three official ISO languages (English and French), ISO 4135 gives the equivalent terms in the German language; these are published under the responsibility of the member body for Germany. However, only the terms and definitions given in the official languages can be considered as ISO terms and definitions.
Who is ISO 4135 - Vocabulary for anaesthetic and respiratory equipment for?
ISO 4135 on vocabulary for anaesthetic and respiratory equipment is useful for:
- The medical industry
- Testing agencies involved in anaesthetic and respiratory equipment
- Regulatory bodies
- Quality control and testing personnel
- Manufacturers and suppliers of anaesthetic and respiratory equipment
- Procurement teams
- Researchers
Why should you use ISO 4135 - Vocabulary for anaesthetic and respiratory equipment?
Standardized and uniform vocabulary across an industry facilitates clear communication between procurement teams and suppliers. ISO 4135 contains terms for anaesthetic and respiratory equipment and supplies, related devices and supply systems.
Knowing these terms will help people in relevant industries to communication more effectively and will also make documentation easier.
ISO 4135 saves time as people in these industries will not need to explain complex terms and can focus on the job at hand.
ISO 4135 provides you with vocabulary in the following categories:
- Medical gas supply systems
- Anaesthetic machines and workstations
- Ventilators and resuscitators
- Oxygen therapy delivery systems
- Breathing systems
- Humidifiers, nebulizers and moisture exchangers
- Airways, tracheal tubes, tracheostomy tubes and intubation equipment
- Anaesthetic gas scavenging and plume evacuation systems
- Suction devices
- Monitoring
ISO 4135 will aid in reducing errors as a result of communication gaps. Also, errors which results to financial loss will be avoided. Standardized vocabulary across the industry facilitates research and knowledge-sharing across the world.
What’s changed since the last update?
BS EN ISO 4135:2022 supersedes ISO 4135:2001 which has been withdrawn. BS EN ISO 4135:2022 includes some changes with respect to ISO 4135:2001. These include:
- Deletion of terms that are no longer relevant to International Standards prepared by ISO/TC 121, or that are defined in more widely applicable International Standards, such as ISO 14971.

