This document 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:<\/p>\n
risk assessment;<\/p>\n<\/li>\n
risk reduction.<\/p>\n<\/li>\n<\/ul>\n
The safety of equipment, protective systems and components can be achieved by eliminating hazards and\/or limiting the risk, i.e. by:<\/p>\n
appropriate design (without using safeguarding);<\/p>\n<\/li>\n
safeguarding;<\/p>\n<\/li>\n
information for use;<\/p>\n<\/li>\n
any other preventive measures.<\/p>\n<\/li>\n<\/ol>\n
Measures in accordance with a) (prevention) and b) (protection) against explosions are dealt with in Clause\u00c3\u201a\u00c2 6<\/span>, measures according to c) against explosions are dealt with in Clause\u00c3\u201a\u00c2 7<\/span>. Measures in accordance with d) are not specified in this document. They are dealt with in EN\u00c3\u201a\u00c2 ISO\u00c3\u201a\u00c2 12100:2010<\/span>,\u00c3\u201a\u00c2 Clause\u00c3\u201a \u00c2 6<\/span>.<\/p>\n The preventive and protective measures described in this document 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.<\/p>\n This document specifies general design and construction methods to help designers and manufacturers in achieving explosion safety in the design of equipment, protective systems and components.<\/p>\n This document 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\/combustible substances 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.<\/p>\n This document is applicable to equipment, protective systems and components at all stages of its use.<\/p>\n This document 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 combustible dust.<\/p>\n This document is not applicable to:<\/p>\n medical devices intended for use in a medical environment;<\/p>\n<\/li>\n equipment, protective systems and components where the explosion hazard results exclusively from the presence of explosive substances or unstable chemical substances;<\/p>\n<\/li>\n 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;<\/p>\n<\/li>\n 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;<\/p>\n<\/li>\n personal protective equipment covered by Regulation (EU)\u00c3\u201a \u00c2 2016\/425;<\/p>\n<\/li>\n seagoing vessels and mobile offshore units together with equipment on board such vessels or units;<\/p>\n<\/li>\n 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;<\/p>\n<\/li>\n the design and construction of systems containing desired, controlled combustion processes, unless they can act as ignition sources in potentially explosive atmospheres.<\/p>\n<\/li>\n<\/ol>\n Explosive atmospheres. Explosion prevention and protection – Basic concepts and methodology<\/b><\/p>\n\n
PDF Catalog<\/h4>\n
\n
\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 2<\/td>\n undefined <\/td>\n<\/tr>\n \n 8<\/td>\n 1 Scope <\/td>\n<\/tr>\n \n 9<\/td>\n 2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n\n 10<\/td>\n 4 Risk assessment
4.1 General
4.2 Identification of explosion hazards
4.2.1 General <\/td>\n<\/tr>\n\n 11<\/td>\n 4.2.2 Flammability properties
4.2.3 Explosion behaviour
4.2.4 Likelihood of occurrence of a hazardous explosive atmosphere <\/td>\n<\/tr>\n\n 12<\/td>\n 4.3 Identification of ignition hazards
4.3.1 General <\/td>\n<\/tr>\n\n 13<\/td>\n 4.3.2 Ignition properties
4.3.3 Likelihood of occurrence of effective ignition sources
4.4 Estimation of the possible effects of an explosion <\/td>\n<\/tr>\n\n 14<\/td>\n 5 Possible ignition sources
5.1 Hot surfaces <\/td>\n<\/tr>\n\n 15<\/td>\n 5.2 Flames and hot gases (including hot particles)
5.3 Mechanically generated impact, friction and abrasion <\/td>\n<\/tr>\n\n 16<\/td>\n 5.4 Electrical equipment and components
5.5 Stray electric currents, cathodic corrosion protection
5.6 Static electricity <\/td>\n<\/tr>\n\n 17<\/td>\n 5.7 Lightning
5.8 Radio frequency (RF) electromagnetic waves from 104 Hz to 3 \u00d7 1011 Hz
5.9 Electromagnetic waves from 3 \u00d7 1011 Hz to 3 \u00d7 1015 Hz <\/td>\n<\/tr>\n\n 18<\/td>\n 5.10 Ionizing radiation
5.11 Ultrasonic waves
5.12 Adiabatic compression and shock waves <\/td>\n<\/tr>\n\n 19<\/td>\n 5.13 Exothermic reactions, including self-ignition of dusts
6 Risk reduction
6.1 Fundamental priciples <\/td>\n<\/tr>\n\n 20<\/td>\n 6.2 Avoidance or reduction of the amount of hazardous explosive atmospheres
6.2.1 Process parameters
6.2.1.1 Substitution or reduction of amount of substances which are capable of forming explosive atmospheres
6.2.1.2 Limitation of concentration <\/td>\n<\/tr>\n\n 21<\/td>\n 6.2.1.3 Inerting
6.2.2 Design and construction of equipment, protective systems and components
6.2.2.1 General
6.2.2.2 Avoidance or reduction of releases of flammable\/combustible substances <\/td>\n<\/tr>\n\n 22<\/td>\n 6.2.2.3 Dilution by ventilation
6.2.2.4 Avoiding dust accumulations <\/td>\n<\/tr>\n\n 23<\/td>\n 6.3 Hazardous areas
6.4 Requirements for the design and construction of equipment, protective systems and components for avoidance of effective ignition sources
6.4.1 General <\/td>\n<\/tr>\n\n 24<\/td>\n 6.4.2 Hot surfaces <\/td>\n<\/tr>\n \n 26<\/td>\n 6.4.3 Flames and hot gases
6.4.4 Mechanically generated impact, friction and grinding <\/td>\n<\/tr>\n\n 27<\/td>\n 6.4.5 Electrical equipment and components
6.4.6 Stray electric currents and cathodic corrosion protection <\/td>\n<\/tr>\n\n 28<\/td>\n 6.4.7 Static electricity
6.4.8 Lightning <\/td>\n<\/tr>\n\n 29<\/td>\n 6.4.9 Radio frequency (RF) electromagnetic waves from 104 Hz to 3 \u00d7 1011 Hz <\/td>\n<\/tr>\n \n 30<\/td>\n 6.4.10 Electromagnetic waves from 3 \u00d7 1011 Hz to 3 \u00d7 1015 Hz
6.4.11 Ionizing radiation <\/td>\n<\/tr>\n\n 31<\/td>\n 6.4.12 Ultrasonic waves <\/td>\n<\/tr>\n \n 32<\/td>\n 6.4.13 Adiabatic compression and shock waves <\/td>\n<\/tr>\n \n 33<\/td>\n 6.4.14 Exothermic reactions, including self-ignition of dusts
6.5 Requirements for the design and construction of equipment, protective systems and components to reduce the explosion effects <\/td>\n<\/tr>\n\n 34<\/td>\n 6.6 Provisions for emergency measures
6.7 Principles of measuring and control systems for explosion prevention and protection <\/td>\n<\/tr>\n\n 35<\/td>\n 7 Information for use
7.1 General <\/td>\n<\/tr>\n\n 36<\/td>\n 7.2 Information for commissioning, maintenance and repair to prevent explosion
7.3 Qualifications and training <\/td>\n<\/tr>\n\n 37<\/td>\n Annex A (informative)Information for the use of tools in potentially explosive atmospheres <\/td>\n<\/tr>\n \n 38<\/td>\n Annex B (informative)Tightness of equipment
B.1 General
B.2 Normal tightness <\/td>\n<\/tr>\n\n 39<\/td>\n B.3 Enhanced tightness <\/td>\n<\/tr>\n \n 40<\/td>\n Annex C (normative)Verification procedure for the threshold limit of ultrasound in liquids <\/td>\n<\/tr>\n \n 42<\/td>\n Annex D (informative)Significant technical changes between this document and the previous edition of this document <\/td>\n<\/tr>\n \n 44<\/td>\n Annex ZA (informative)Relationship between this European Standard and the essential requirements of EU Directive 2014\/34\/EU aimed to be covered <\/td>\n<\/tr>\n \n 45<\/td>\n Annex ZB (informative)Relationship between This document and the essential requirements of Directive 2006\/42\/EC aimed to be covered <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" \n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2019<\/td>\n 50<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":239894,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-239888","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/239888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/239894"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=239888"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=239888"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=239888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}