ISO 23551-12:2023 PDF

Safety and control devices for gas burners and gas-burning appliances — Particular requirements — Part 12: Multifunctional controls with integral overpressure protection safety function (OPSF) for use with butane gas cartridges used in portable gas appliances

First page of standard ISO 23551-12:2023

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Title (English):

ISO 23551-12:2023

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 27
Publication date:: October 6, 2023
Edition:: ISO IS 23551 edition 1 version 1
ICS:: 27.060.20

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Description (English):

This document specifies safety, construction, performance and testing requirements for multifunctional controls with integral overpressure protection safety function (OPSF) intended for use with portable gas appliances. This document is applicable to: — multifunctional controls which consist of a pressure-limiting device and at least one or more controls, including but not limited to a manual gas valve, a pressure regulator and a thermoelectric flame supervision device; and — multifunctional controls with declared maximum operating pressures in normal use, up to and including 500 kPa for use with a butane gas cartridge specified by ISO/TS 21985. This document does not apply to multifunctional controls with OPSF having thread connections for mounting butane gas cartridges. This document covers type testing only.

Technical details

Technical committee: ISO/TC 161 - Controls and protective devices for gas and/or oil
SKU: ISO 23551-12:2023

Abstract

Overview

ISO 23551-12:2023 defines safety, construction, performance and testing requirements for multifunctional controls with integral overpressure protection safety function (OPSF) intended for use with butane gas cartridges in portable gas appliances. The standard applies to controls that combine a pressure-limiting device with one or more control functions (for example, a manual gas valve, pressure regulator and/or thermoelectric flame supervision device) and with declared maximum operating pressures in normal use up to 500 kPa for use with butane cartridges specified by ISO/TS 21985. Note: ISO 23551-12 covers type testing only and does not apply to multifunctional controls that have threaded connections for mounting butane cartridges.

Key Topics and Requirements

ISO 23551-12 sets out technical requirements and test methods to ensure safe, reliable operation of multifunctional gas controls. Major topics include:

Construction and materials
- Enclosure, moving parts, seals, springs, housings, corrosion resistance and surface protection.
Functional elements
- Pressure-limiting device (OPSF), manual gas valves, pressure regulators and thermoelectric flame supervision devices.
Performance and safety testing
- Leak-tightness (volumetric and pressure-loss methods)
- Rated flow rate and flow performance
- Durability and endurance testing
- Mechanical tests: torsion, bending, vibration
- Environmental tests: cold resistance, heat resistance, thermal shock
- Corrosion resistance and post-corrosion OPSF operation
Electrical and EMC requirements
- Provisions when electrical components are in the gas path and electromagnetic compatibility.
Marking and documentation
- Required markings, installation and operating instructions, and warning notices.
Type testing scope
- This part is explicit about type tests and test conditions/tolerances.

Practical Applications and Who Uses It

ISO 23551-12 is directly useful to:

Manufacturers of portable gas appliances and multifunctional gas controls aiming to design and certify OPSF-equipped devices.
Product designers and safety engineers defining materials, assemblies and performance targets.
Testing laboratories and conformity assessment bodies performing type testing and issuing compliance reports.
Regulators and specifiers setting procurement or regulatory safety requirements for portable butane-fuelled appliances.
OEMs and importers seeking market access and demonstrating compliance with international safety practices.

Adopting ISO 23551-12 helps ensure safe operation, reduce overpressure risks, and support consistent type-testing for portable gas appliances using butane cartridges.

Related Standards

ISO/TS 21985 - specification for butane gas cartridges referenced by this part.
Other parts of the ISO 23551 series covering safety and control devices for gas burners and appliances (see ISO catalogue for related part numbers).

Related standards

Standards mentioned in the description

Abstract

Overview

Key Topics and Requirements

ISO 23551-12 sets out technical requirements and test methods to ensure safe, reliable operation of multifunctional gas controls. Major topics include:

Construction and materials
- Enclosure, moving parts, seals, springs, housings, corrosion resistance and surface protection.
Functional elements
- Pressure-limiting device (OPSF), manual gas valves, pressure regulators and thermoelectric flame supervision devices.
Performance and safety testing
- Leak-tightness (volumetric and pressure-loss methods)
- Rated flow rate and flow performance
- Durability and endurance testing
- Mechanical tests: torsion, bending, vibration
- Environmental tests: cold resistance, heat resistance, thermal shock
- Corrosion resistance and post-corrosion OPSF operation
Electrical and EMC requirements
- Provisions when electrical components are in the gas path and electromagnetic compatibility.
Marking and documentation
- Required markings, installation and operating instructions, and warning notices.
Type testing scope
- This part is explicit about type tests and test conditions/tolerances.

Practical Applications and Who Uses It

ISO 23551-12 is directly useful to:

Manufacturers of portable gas appliances and multifunctional gas controls aiming to design and certify OPSF-equipped devices.
Product designers and safety engineers defining materials, assemblies and performance targets.
Testing laboratories and conformity assessment bodies performing type testing and issuing compliance reports.
Regulators and specifiers setting procurement or regulatory safety requirements for portable butane-fuelled appliances.
OEMs and importers seeking market access and demonstrating compliance with international safety practices.

Adopting ISO 23551-12 helps ensure safe operation, reduce overpressure risks, and support consistent type-testing for portable gas appliances using butane cartridges.

Related Standards

ISO/TS 21985 - specification for butane gas cartridges referenced by this part.
Other parts of the ISO 23551 series covering safety and control devices for gas burners and appliances (see ISO catalogue for related part numbers).

ISO 23551-12:2023 PDF

Technical details

Abstract

Overview

Key Topics and Requirements

Practical Applications and Who Uses It

Related Standards

Related standards

Abstract

Overview

Key Topics and Requirements

Practical Applications and Who Uses It

Related Standards

Related standards

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