ISO 7203-2-2019 PDF

Full title and description

Fire extinguishing media — Foam concentrates — Part 2: Specification for medium- and high-expansion foam concentrates for top application to water-immiscible liquids. This international standard specifies essential properties and performance requirements for liquid foam concentrates used to produce medium- or high-expansion foams for control, extinction and inhibition of reignition of fires involving water-immiscible liquids; it also specifies minimum performance on certain test fires and states applicability for top‑application firefighting techniques.

Abstract

ISO 7203-2:2019 defines the physical and performance characteristics that medium- and high-expansion foam concentrates must meet to be effective when applied to fires on water‑immiscible liquids (top application). The document sets out minimum performance on designated test fires and clarifies compatibility with other parts of the ISO 7203 series where relevant.

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 (ISO 7203-2:2019).
• Number of pages: 41 pages.

Scope

This standard applies to liquid foam concentrates intended for the production of medium‑ and high‑expansion foams used for top application onto fires of water‑immiscible liquids. It specifies essential properties, performance requirements and minimum test‑fire performance criteria necessary to assess suitability for control, extinction and inhibition of reignition of such fires. The standard also notes that foam concentrates that comply with ISO 7203-1 are suitable for top application to water‑immiscible liquids.

Key topics and requirements

• Specification of essential physical and performance properties for medium‑ and high‑expansion foam concentrates (e.g., expansion characteristics, drainage time, stability and concentration/performance relationships).
• Minimum performance requirements on standardized test fires to demonstrate extinguishing and re‑ignition inhibition capability.
• Applicability and guidance for top application onto water‑immiscible liquid fires, including compatibility notes with ISO 7203-1.
• Conformance and testing procedures used by manufacturers and testing laboratories to verify concentrate performance (test methods and acceptance criteria).
• Reference to life‑cycle status and revision history (replaces earlier editions from 2011 and 1995).

Typical use and users

Primary users include foam concentrate manufacturers, fire‑protection product designers, test laboratories, facility safety and fire protection engineers, regulatory authorities and purchasing bodies responsible for specifying firefighting agents for facilities handling water‑immiscible liquids (storage terminals, shipboard systems, industrial plants). Testing bodies and certification organizations use the standard to assess and verify product compliance.

Related standards

ISO 7203 is a multi‑part series addressing foam concentrates and their specifications. Closely related parts include ISO 7203-1 (general requirements for foam concentrates) and ISO 7203-3 (specification for low‑expansion foam concentrates for top application to water‑miscible liquids). Earlier editions of Part 2 were published in 1995 and 2011 and have been superseded by the 2019 edition.

Keywords

fire extinguishing media, foam concentrates, medium‑expansion foam, high‑expansion foam, top application, water‑immiscible liquids, test fires, ISO 7203, fire‑fighting standards, foam performance.

FAQ

Q: What is this standard?

A: ISO 7203-2:2019 is an international standard specifying requirements and performance criteria for medium‑ and high‑expansion foam concentrates intended for top application to fires involving water‑immiscible liquids.

Q: What does it cover?

A: It covers the essential properties, performance requirements and minimum test‑fire results that foam concentrates must meet to be considered suitable for top‑application firefighting on water‑immiscible liquid fires, including guidance on applicability and compatibility with related parts of the ISO 7203 series.

Q: Who typically uses it?

A: Manufacturers of foam concentrates, fire protection engineers, testing and certification laboratories, facility safety managers, regulators and procurement teams specifying firefighting agents for facilities handling water‑immiscible liquids.

Q: Is it current or superseded?

A: ISO 7203-2:2019 is the current published edition (July 2019) and supersedes earlier editions (2011 and 1995). ISO has recorded work items to revise parts of the 7203 series, so users should check national bodies or ISO for any newer amendments or approved work items.

Q: Is it part of a series?

A: Yes — it is Part 2 of the ISO 7203 series on foam concentrates. Related parts include ISO 7203-1 (general requirements) and ISO 7203-3 (low‑expansion concentrates for water‑miscible liquids), among others in the series.

Q: What are the key keywords?

A: Foam concentrates, medium‑expansion foam, high‑expansion foam, top application, water‑immiscible liquids, test fires, foam performance, fire‑fighting.