ISO 7203-1-2019 PDF

Full title and description

ISO 7203-1:2019 — Fire extinguishing media — Foam concentrates — Part 1: Specification for low-expansion foam concentrates for top application to water-immiscible liquids. This third edition (2019) specifies essential properties and performance requirements for liquid foam concentrates used to produce low-expansion foam for control, extinction and inhibition of reignition of fires involving water-immiscible liquids.

Abstract

This standard defines minimum performance on specified test fires and required physical/chemical characteristics for low-expansion foam concentrates intended for top application to water-immiscible liquid fires. It notes that concentrates complying with ISO 7203-3 are also suitable for certain water-miscible liquid applications and that specific requirements for non-aspirating sprayers or subsurface application are outside the scope of this part.

General information

• Status: Published.
• Publication date: July 2019 (2019-07).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 13.220.10 (Fire-fighting).
• Edition / version: Edition 3 (2019).
• Number of pages: 42 pages.

Scope

ISO 7203-1:2019 applies to liquid foam concentrates formulated to produce low-expansion foams for top application to fires of water-immiscible liquids. It specifies the essential properties, minimum performance on defined test fires and related requirements for manufacture, storage stability and use in appropriate application systems, while excluding detailed requirements for non-aspirating sprayers and subsurface application.

Key topics and requirements

• Definition of essential physical and chemical properties required of low-expansion foam concentrates (e.g., compatibility with water and fuel surfaces, concentrate stability and dilution characteristics).
• Minimum performance criteria on specified test fires for control, extinction and inhibition of reignition.
• Requirements related to concentrate handling, storage stability and labelling for safe use and transport.
• Guidance on application suitability (top application to water-immiscible liquids) and relationship to other parts of the ISO 7203 series.
• Exclusions and notes clarifying that requirements for certain application methods (non-aspirating sprayers, subsurface) are not covered in detail.

Typical use and users

Used by foam concentrate manufacturers, fire protection engineers, testing and certification bodies, refinery and petrochemical safety teams, port and terminal operators, industrial fire brigades, procurement/specification teams and regulatory authorities for specifying, testing and approving low-expansion foam concentrates for top application to liquid fuel fires.

Related standards

ISO 7203 is a multipart series covering foam concentrates. Closely related parts published in the same review cycle include ISO 7203-2:2019 (specification for medium- and high-expansion foam concentrates for top application to water-immiscible liquids) and ISO 7203-3:2019 (specification for low-expansion foam concentrates for top application to water-miscible liquids). Users often consult these parts together to select the correct concentrate type for the target fuel and application method.

Keywords

foam concentrate, low-expansion foam, fire extinguishing media, water-immiscible liquids, top application, foam performance, ISO 7203, fire-fighting, foam testing, stability and labelling.

FAQ

Q: What is this standard?

A: ISO 7203-1:2019 is an international standard that specifies essential properties and minimum performance requirements for low-expansion foam concentrates intended for top application to fires involving water-immiscible liquids.

Q: What does it cover?

A: It covers required concentrate characteristics, performance on defined test fires (control, extinction, inhibition of reignition), and related requirements for manufacture, stability and labelling; it does not include detailed requirements for non-aspirating sprayers or subsurface application.

Q: Who typically uses it?

A: Manufacturers of foam concentrates, fire-protection engineers and specialists, industrial safety teams (refineries, terminals, chemical plants), testing laboratories, procurement officers and certifying bodies.

Q: Is it current or superseded?

A: ISO 7203-1:2019 is the published (third) edition from July 2019 and is the current ISO publication for this part; the ISO record indicates the part is under normal review and may be subject to future revision.

Q: Is it part of a series?

A: Yes. ISO 7203 is a multipart series; related published parts include ISO 7203-2:2019 (medium/high-expansion concentrates) and ISO 7203-3:2019 (low-expansion concentrates for water-miscible liquids). These parts are intended to be used together to select and specify suitable foam concentrates for particular fuels and application methods.

Q: What are the key keywords?

A: Low-expansion foam, foam concentrate, fire extinguishing media, water-immiscible liquids, top application, foam performance, stability, labelling.