NFPA 2001, Standard on Clean Agent Fire Extinguishing Systems

Overview

NFPA 2001 is the standard for clean agent fire extinguishing systems. The text of the standard is therefore not reproduced here; what is given is the scope and edition information stated on the page. Systems of this kind are regarded as the typical suppression choice for data halls and electrical rooms.

The standard covers total-flooding and local-application clean agent (gaseous) systems. Its audience is broad: those who buy, design, install, test, inspect, approve, operate or maintain engineered or pre-engineered systems. This shows that the standard speaks not only to the designer but to every stakeholder across the system's life cycle. This wide audience also makes it natural to cite the standard for commissioning and periodic maintenance of the system.

On edition status, the current edition is 2025 and the next edition is 2028. The next edition falls in the Fall 2027 revision cycle and is listed on the page as accepting public comment. This is a reminder that the standard is updated at regular intervals and that designers should confirm the edition in force at the start of a project.

The limit of the record is that it holds no numerical requirements on agent types, design concentrations or discharge times; only scope and edition information is present. Related standards include ISO 14520-1, NFPA 75 and EN 15004. The source should be used as a starting point to establish which standard applies to which type of system, and the full text of the standard must be consulted for calculation and approval.

Key points

1. Title: Standard on Clean Agent Fire Extinguishing Systems.
2. Current edition 2025; next edition 2028.
3. Covers total flooding and local application clean agent systems.
4. Intended for purchasers, designers, installers, testers, inspectors, approvers, operators and maintainers of engineered or pre-engineered systems.
5. The next edition is in the Fall 2027 revision cycle and is listed as accepting public comment.
6. Related standards: ISO 14520-1, NFPA 75, EN 15004.

Using it in design

• In a suppression calculator, compute agent quantity from protected volume, design concentration and minimum room temperature.
• Add room-integrity (hold time) and over-pressure venting checks.
• Store the agent type to switch between NFPA 2001 and ISO 14520 parameters.
• Confirm the edition in force at the start of the project.

Who should read it

Engineers and fire safety specialists who design, approve and operate suppression systems for data halls and electrical rooms.

Related standards

• ISO 14520-1
• NFPA 75
• EN 15004

Publication details

Authors

National Fire Protection Association

Publisher

NFPA

Year

2025

Document number

NFPA 2001

Document language

English

Source type

Standard

Access

Citation only

Licence

Copyright retained; citation only — the publisher’s terms apply to the original document

Citation