ISO 16852:2008 specifies the requirements for flame arresters that prevent flame transmission when explosive gas-air or vapour-air mixtures are present. It establishes uniform principles for the classification, basic construction and information for use, including the marking of flame arresters, and specifies test methods to verify the safety requirements and determine safe limits of use.
ISO 16852:2008 is valid for pressures ranging from 80 kPa to 160 kPa and temperatures ranging from -20 °C to +150 °C.
ISO 16852:2008 is not applicable to the following:
external safety-related measurement and control equipment that might be required to keep the operational conditions within the established safe limits;
flame arresters used for explosive mixtures of vapours and gases, which tend to self-decompose (e.g. acetylene) or which are chemically unstable;
flame arresters used for carbon disulphide, due to its special properties;
flame arresters whose intended use is for mixtures other than gas-air or vapour-air mixtures (e.g. higher oxygen-nitrogen ratio, chlorine as oxidant, etc.);
flame arrester test procedures for internal-combustion compression ignition engines;
fast acting valves, extinguishing systems and other explosion isolating systems;
flame arresters integrated or combined with explosion-protected equipment, such as blowers, fans, compressors and pumps.
Related directives
NOTE: If the word "harmonized" (marked in green) is not found in the field with the name of the directive, it means that the European standard is not cited in the OJEU.
94/9/EC
Equipment and protective systems intended for use in potentially explosive atmospheres (ATEX)
Directive 2014/34/EU Of The European Parliament And Of The Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast)
