ISO 4642-2-2015 PDF

Full title and description

Rubber and plastics hoses, non-collapsible, for fire-fighting service — Part 2: Semi-rigid hoses (and hose assemblies) for pumps and vehicles. This International Standard specifies requirements and test methods for semi‑rigid reel and delivery hoses intended for use on fire‑fighting vehicles and trailer pumps, including performance categories, types/classes, and requirements for hose assemblies fitted by the manufacturer.

Abstract

ISO 4642-2:2015 defines requirements and test methods for semi‑rigid hoses used in fire‑fighting vehicle and pump applications. It covers hoses intended for maximum working pressures of 1.5 MPa (category I, normal pressure) and 4.0 MPa (category II, high pressure), and applies to hoses intended for use at a minimum ambient temperature of −20 °C. The standard also addresses subdivision into types and classes and gives requirements for hose assemblies where fitted by the manufacturer.

General information

• Status: Published.
• Publication date: Edition 2 — 2015 (ISO lists edition 2 as 2015‑12).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 13.220.10 (Fire‑fighting); 83.140.40 (Hoses).
• Edition / version: Edition 2 (2015).
• Number of pages: 29.

Scope

Specifies requirements and test methods for semi‑rigid reel and delivery hoses intended for fire‑fighting service on pumps and vehicles. Applies to hoses intended for use at ambient temperatures down to −20 °C (unless otherwise agreed) and to hoses intended to operate at the stated maximum working pressures for the defined categories. The standard is intended for delivery hoses used with fire hose couplings conforming to relevant national standards.

Key topics and requirements

• Classification into types and classes for semi‑rigid hoses used on reels and as delivery hoses for vehicles/pumps.
• Defined maximum working pressures: 1.5 MPa for normal‑pressure (category I) hoses and 4.0 MPa for high‑pressure (category II) hoses.
• Minimum ambient temperature of use: −20 °C (lower temperatures by agreement between manufacturer and purchaser).
• Requirements and test methods for physical and performance characteristics (pressure testing, dimensional tolerances, material and construction checks).
• Provisions for hose assemblies fitted by the manufacturer and compatibility with nationally referenced hose couplings.

Typical use and users

Used by fire‑fighting equipment manufacturers, vehicle builders (fire apparatus and pump manufacturers), hose and coupling manufacturers, procurement and specification engineers in fire services, testing and quality laboratories, and maintenance/inspection teams responsible for vehicle‑mounted fire hose systems.

Related standards

ISO 4642 is a multi‑part series. Part 1 (ISO 4642‑1:2015) covers semi‑rigid hoses for fixed systems; earlier editions of the series include ISO 4642‑2:2009 (withdrawn and superseded by the 2015 edition). The ISO 4642 series sits with other hose and fire‑fighting standards and national variants (e.g., BS ISO versions) that address couplings, testing methods and additional hose types.

Keywords

fire‑fighting hose, semi‑rigid hose, hose assembly, delivery hose, vehicle hose, pump hose, working pressure, reel hose, ISO 4642‑2, hose testing, −20 °C.

FAQ

Q: What is this standard?

A: ISO 4642‑2:2015 is an International Standard specifying requirements and test methods for semi‑rigid rubber and plastics hoses (and hose assemblies) intended for fire‑fighting service on pumps and vehicles.

Q: What does it cover?

A: It covers classification, performance requirements and test methods for semi‑rigid reel and delivery hoses used on fire‑fighting vehicles and trailer pumps, including maximum working pressures for defined categories and minimum ambient temperature of use.

Q: Who typically uses it?

A: Fire service procurement/specification teams, manufacturers of hoses and fire vehicles/pumps, test laboratories, and maintenance/inspection personnel responsible for vehicle‑mounted hose systems.

Q: Is it current or superseded?

A: ISO 4642‑2:2015 (Edition 2, 2015) is the published 2015 edition that replaced the 2009 edition. ISO lists the 2015 edition as published (it is the current published edition per ISO lifecycle information—users should check ISO or their national body for any later amendments or revisions).

Q: Is it part of a series?

A: Yes — ISO 4642 is a multipart series. ISO 4642‑1:2015 covers semi‑rigid hoses for fixed systems; other parts address different hose types and applications.

Q: What are the key keywords?

A: fire‑fighting hose, semi‑rigid, hose assemblies, vehicle hose, pump hose, working pressure, reel hose, hose testing, ISO 4642‑2.