Fixed firefighting systems - Watermist systems - Design and installation

This standard provides information for verifiable classification of watermist systems, according to their expected fire protection characteristics with reference to extinguishment, fire control or suppression.
It devises a series of specific test conditions to set out criteria capable of verifying performance claims of watermist systems, classify and determine the extent of their suitability for intended applications, whilst setting a minimum level of acceptable performance and/or safety.
As the fire test scenarios of this standard apply to a group of similar applications, by analogy the successful performance of watermist systems also applies to that group, as defined in annex A.
As individual watermist applications have varied requirements and duty, this European standard is intended to apply to both skidded stand alone and pumped systems. Aspects of watermist associated with explosion protection are beyond the scope of this standard. The standard is not intended to be used as a universal design manual of watermist, as different systems have different characteristics and hence follow different design criteria to satisfy their duty requirements. It is the approving authority's responsibility to assess and implement the design manual of specific watermist systems against the tests set out in this standard.
If the gas in the system is the major factor for extinguishing/suppression the relevant parts of EN 12094 are to be considered.

Ortsfeste Brandbekämpfungsanlagen - Feinsprüh-Löschanlagen - Planung und Einbau

Installations fixes de lutte contre l'incendie - Systemes a brouillard d'eau - Calcul et installation

Fixed firefighting systems - Watermist systems - Design and installation

General Information

Status
Not Published
Technical Committee
POZ - Požarna varnost
Current Stage
98 - Abandoned project (Adopted Project)
Start Date
13-Dec-2013
Due Date
18-Dec-2013
Completion Date
13-Dec-2013

Overview

prCEN/TS 14972 (CEN) - Fixed firefighting systems: Watermist systems - Design and installation - provides a framework for classifying and verifying the fire protection performance of watermist systems. The Technical Specification defines specific fire test conditions and pass/fail criteria to support verifiable claims of extinguishment, fire control, or suppression, and sets minimum acceptable levels of performance and safety for groups of similar applications.

Key topics and requirements

  • Performance classification: Establishes verifiable classes based on expected fire protection characteristics (extinguishment, control, suppression).
  • Test conditions and criteria: Specifies a series of fire test scenarios and objective criteria to validate system performance claims. These scenarios are designed to be applicable by analogy to groups of similar applications (see annex A).
  • Scope of applicability:
    • Intended for both skidded stand‑alone and pumped watermist systems.
    • Does not cover explosion protection aspects.
    • Not a universal design manual - different watermist technologies may require different detailed design rules to meet the specified duty.
  • Approval and responsibility: The approving authority (regulator or certifier) is responsible for assessing a specific system’s design manual against the tests and performance criteria in this specification.
  • Interaction with gas systems: If the gas in the system is the major extinguishing/suppressing agent, relevant parts of EN 12094 should be considered.

Practical applications and who uses this standard

This Technical Specification is useful for professionals and organizations involved in specification, selection, testing and approval of watermist fire protection systems:

  • Fire safety engineers and consultants assessing system suitability for a given hazard
  • Manufacturers and system designers preparing performance claims and design manuals
  • Installers and commissioning authorities implementing skidded or pumped watermist solutions
  • Regulators, approving authorities and certification bodies evaluating compliance and approving system designs
  • Building owners, facility managers and insurers seeking documented performance evidence for watermist installations

Related standards

  • EN 12094 - Relevant when gaseous agents dominate extinguishing/suppression performance.
  • Annex A of prCEN/TS 14972 - Defines groups of similar applications for analogy-based applicability.

This document supports evidence‑based selection and approval of watermist systems by defining reproducible test conditions and minimum performance expectations, helping stakeholders translate laboratory validation into practical, reliable fire protection solutions.

Draft

oSIST prEN 14972:2004

English language
66 pages
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Frequently Asked Questions

OSIST prEN 14972:2004 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Fixed firefighting systems - Watermist systems - Design and installation". This standard covers: This standard provides information for verifiable classification of watermist systems, according to their expected fire protection characteristics with reference to extinguishment, fire control or suppression. It devises a series of specific test conditions to set out criteria capable of verifying performance claims of watermist systems, classify and determine the extent of their suitability for intended applications, whilst setting a minimum level of acceptable performance and/or safety. As the fire test scenarios of this standard apply to a group of similar applications, by analogy the successful performance of watermist systems also applies to that group, as defined in annex A. As individual watermist applications have varied requirements and duty, this European standard is intended to apply to both skidded stand alone and pumped systems. Aspects of watermist associated with explosion protection are beyond the scope of this standard. The standard is not intended to be used as a universal design manual of watermist, as different systems have different characteristics and hence follow different design criteria to satisfy their duty requirements. It is the approving authority's responsibility to assess and implement the design manual of specific watermist systems against the tests set out in this standard. If the gas in the system is the major factor for extinguishing/suppression the relevant parts of EN 12094 are to be considered.

This standard provides information for verifiable classification of watermist systems, according to their expected fire protection characteristics with reference to extinguishment, fire control or suppression. It devises a series of specific test conditions to set out criteria capable of verifying performance claims of watermist systems, classify and determine the extent of their suitability for intended applications, whilst setting a minimum level of acceptable performance and/or safety. As the fire test scenarios of this standard apply to a group of similar applications, by analogy the successful performance of watermist systems also applies to that group, as defined in annex A. As individual watermist applications have varied requirements and duty, this European standard is intended to apply to both skidded stand alone and pumped systems. Aspects of watermist associated with explosion protection are beyond the scope of this standard. The standard is not intended to be used as a universal design manual of watermist, as different systems have different characteristics and hence follow different design criteria to satisfy their duty requirements. It is the approving authority's responsibility to assess and implement the design manual of specific watermist systems against the tests set out in this standard. If the gas in the system is the major factor for extinguishing/suppression the relevant parts of EN 12094 are to be considered.

OSIST prEN 14972:2004 is classified under the following ICS (International Classification for Standards) categories: 13.220.20 - Fire protection. The ICS classification helps identify the subject area and facilitates finding related standards.

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Standards Content (Sample)


SLOVENSKI OSIST prEN 14972:2004

PREDSTANDARD
december 2004
Fixed firefighting systems - Watermist systems - Design and installation
ICS 13.220.20 Referenčna številka
...

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