British Standards Institution

Source:: CEN
Committee:: GSE/24 - Dedicated LPG appliances
Categories:: Information management | Standardization. General rules | Engineering | Energy and heat transfer engineering | Burners. Boilers | Manufacturing | Petroleum and related technologies | Petroleum and natural gas industries equipment

Scope

This document specifies the constructional and performance characteristics, safety specifications and rational use of energy, relevant test methods and marking of burners burning liquefied petroleum gas and designed to heat up vessels of diameter greater than 300 mm, containing liquids or food.

This document covers appliances, generally floor standing, fitted with one or several open burners, designed to be used outdoors and operating with the gases classified into families, groups and ranges in accordance with EN 437:2021

Appliances supplied with third family gas at other pressures than those defined in 4 are outside the field of application of this document.

Appliances covered by this document are not connected to a flue for the products of combustion and are not connected to the mains electrical supply.

Appliances with a nominal heat input below 1,16 kW are not subject to any requirement concerning the rational use of energy due to their low rate.

For appliance having multiple concentric burners, burners greater than 56 cm diameter are not subject to any requirement concerning the rational use of energy for safety reasons due to handling of the vessel

Purpose

Germany has faced an accident with a Paella cooker causing bodily damage due to unburnt gas that has accumulated underneath a Paella pan. The gas got ignited when trying to reignite the Paella cooker. In order to avoid future accidents due to uncontrolled gas leakage of unburnt gas (e.g. by no ignition, extinguishing of the ignited flame by boiling liquid or by gusts of wind), the EN 497 shall be amended. The amendment shall either make the use of a flame supervision device mandatory or provide rigor testing requirements for appliances falling under EN497. Therefore, we apply to start with an amendment of current EN 497 limited to this issue.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

06/12/2022

Proposal end date:

16/01/2023

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

NWIP EN 497:2022 Amendment Specification for dedicated liquefied petroleum gas appliances — Multi purpose boiling burners for outdoor use - Cooking vessels with a diameter greater than 300 mm

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