This European Standard specifies methods for the identification and assessment of hazardous situations
leading to explosion and the design and construction measures appropriate for the required safety. This is
achieved by:
risk assessment;
risk reduction.
The safety of equipment, protective systems and components can be achieved by eliminating hazards and/or
limiting the risk, i.e. by:
a) appropriate design (without using safeguarding);
b) safeguarding;
c) information for use;
d) any other preventive measures.
Measures in accordance with a) (prevention) and b) (protection) against explosions are dealt with in Clause 6,
measures according to c) against explosions are dealt with in Clause 7. Measures in accordance with d) are
not specified in this European Standard. They are dealt with in EN ISO 12100:2010, Clause 6.
The preventive and protective measures described in this European Standard will not provide the required
level of safety unless the equipment, protective systems and components are operated within their intended
use and are installed and maintained according to the relevant codes of practice or requirements.
This standard specifies general design and construction methods to help designers and manufacturers in
achieving explosion safety in the design of equipment, protective systems and components.
This European Standard is applicable to any equipment, protective systems and components intended to be
used in potentially explosive atmospheres, under atmospheric conditions. These atmospheres can arise from
flammable materials processed, used or released by the equipment, protective systems and components or
from materials in the vicinity of the equipment, protective systems and components and/or from the materials
of construction of the equipment, protective systems and components.
This European Standard is applicable to equipment, protective systems and components at all stages of its
use.
This European Standard is only applicable to equipment group II which is intended for use in other places than
underground parts of mines and those parts of surface installations of such mines endangered by firedamp
and/or flammable dust.
This European Standard is not applicable to:
1) medical devices intended for use in a medical environment;
2) equipment, protective systems and components where the explosion hazard results exclusively
from the presence of explosive substances or unstable chemical substances;
3) equipment, protective systems and components where the explosion can occur by reaction of
substances with other oxidizers than atmospheric oxygen or by other hazardous reactions or by other
than atmospheric conditions;
4) equipment intended for use in domestic and non-commercial environments where potentially
explosive atmospheres may only rarely be created, solely as a result of the accidental leakage of fuel
gas;
5) personal protective equipment covered by Directive 89/686/EEC;
6) seagoing vessels and mobile offshore units together with equipment on board such vessels or
units;
7) means of transport, i.e. vehicles and their trailers intended solely for transporting passengers by
air or by road, rail or water networks, as well as means of transport insofar as such means are
designed for transporting goods by air, by public road or rail networks or by water; vehicles intended
for use in a potentially explosive atmosphere shall not be excluded;
8) the design and construction of systems containing desired, controlled combustion processes,
unless they can act as ignition sources in potentially explosive atmospheres.
BS EN 1127-1:2011 Referenced Document
EN 13237 Potentially explosive atmospheres - Terms and definitions for equipment and protective systems intended for use in potentially explosive atmospheres*， 2024-04-19 Update
EN 13463-1 Non-Electrical Equipment for Potentially Explosive Atmospheres - Part 1: Basic Method and Requirements*， 2024-04-19 Update
EN 13463-6 Non-electrical equipment for use in potentially explosive atmospheres - Part 6: Protection by control of ignition source ?b?
EN 13821 Potentially explosive atmospheres - Explosion prevention and protection - Determination of minimum ignition energy of dust/air mixtures*， 2024-04-19 Update
EN 14034-1 Determination of explosion characteristics of dust clouds - Part 1: Determination of the maximum explosion pressure pmax of dust clouds
EN 14034-2 Determination of explosion characteristics of dust clouds - Part 2: Determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds (Incorporates Amendment A1: 2011)
EN 14034-3 Determination of explosion characteristics of dust clouds - Part 3: Determination of the lower explosion limit LEL of dust clouds (Incorporates Amendment A1: 2011)
EN 14034-4 Determination of explosion characteristics of dust clouds - Part 4: Determination of the limiting oxygen concentration LOC of dust clouds
EN 14373 Explosion suppression systems*， 2021-10-31 Update
EN 14460 Explosion resistant equipment*， 2018-01-01 Update
EN 14491 Dust explosion venting protective systems*， 2012-08-01 Update
EN 14522 Determination of the auto ignition temperature of gases and vapours
EN 14756 Determination of the limiting oxygen concentration (LOC) for gases and vapours*， 2024-04-19 Update
EN 14797 Explosion venting devices*， 2024-04-19 Update
EN 15198 Methodology for the risk assessment of non-electrical equipment and components for intended use in potentially explosive atmospheres
EN 15794 Determination of explosion points of flammable liquids*， 2024-04-19 Update
EN 15967 Determination of maximum explosion pressure and the maximum rate of pressure rise of gases and vapours
EN 1839 Determination of the explosion limits and the limiting oxygen concentration(LOC) for flammable gases and vapours*， 2017-01-01 Update
EN 50281-2-1 Electrical Apparatus for Use in the Presence of Combustible Dust - Part 2-1: Test Methods - Methods of Determining Minimum Ignition Temperatures
EN 50495 Safety devices required for the safe functioning of equipment with respect to explosion risks
EN 60079-1 Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"*， 2024-01-19 Update
EN 60079-10-1 Explosive atmospheres - Part 10-1: Classification of areas - Explosive gas atmospheres (Incorporating corrigendum November 2015)*， 2015-12-01 Update
BS EN 1127-1:2011 history
2019BS EN 1127-1:2019 Explosive atmospheres. Explosion prevention and protection - Basic concepts and methodology
2011BS EN 1127-1:2011 Explosive atmospheres. Explosion prevention and protection. Basic concepts and methodology
2008BS EN 1127-1:2008 Explosive atmospheres. Explosion prevention and protection. Basic concepts and methodology
1998BS EN 1127-1:1998 Explosive atmospheres. Explosion prevention and protection - Basic concepts and methodology
BS EN 1127-1:2011 Explosive atmospheres. Explosion prevention and protection. Basic concepts and methodology was changed to GMKOREA EDS-T-7608-2012 Test Method for Determining the Friction Properties of Seat Upholstery Materials ??? ????? ??? ???? ???? Version 4; English/Korean; Do Not Use on New Program; No Replacement [Replaced: GMKOREA EDS-T-7608].