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ISO 15779:2026

ISO 15779:2026 / General requirements condensed aerosol fire extinguishing systems - Ed. 2 2026

ISO 15779:2026 / General requirements condensed aerosol fire extinguishing systems - Ed. 2 2026

ID 26989 | 28 Agosto 2026 / Preview attached

ISO 15779:2026
Condensed aerosol fire extinguishing systems - Requirements and test methods for components and system design, installation and maintenance - General requirements

This document specifies the requirements and test methods for components of condensed aerosol firefighting systems. It gives recommendations for the design, installation, testing, maintenance and safety of these systems, as well as their application in buildings, plants or other structures. 
 
The characteristics of the extinguishants in the condensed aerosol firefighting systems are also specified, as well as the types of fire for which they are a suitable extinguishing medium. This document covers total flooding systems primarily related to buildings, plants and other specific applications, utilizing electrically non-conducting condensed aerosol fire extinguishants for which there are sufficient data currently available to enable validation of performance characteristics by an appropriate independent authority.
 
Local applications of condensed aerosol extinguishing systems are not covered by this document. Any local applications require a pre-engineered and pre-designed system which has been tested and approved for a specific application by a relevant authority.
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This second edition cancels and replaces the first edition (ISO 15779:2011), which has been technically revised.

The main changes are as follows:
- in 6.2.2 and 7.8.1, a requirement concerning the time taken to reach minimum design density from the beginning of discharge has been added for Class B fires;
- Clause C.12, Impact test, has been removed;
- in D.6.1.3.2, Wood crib test, the total preburn time has been changed from 6 min to 2 min;
- figures have been updated to improve clarity;
- in the Bibliography, the reference to ISO 14520-1 has been removed and a reference to ATEX Directive has been added.
....

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