{"id":48421,"date":"2025-07-16T07:57:22","date_gmt":"2025-07-16T06:57:22","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=approfondimento&#038;p=48421"},"modified":"2025-07-17T08:04:08","modified_gmt":"2025-07-17T07:04:08","slug":"les-zones-dangereuses-hazardous-locations-la-classification-atex-aux-etats-unis-et-au-canada","status":"publish","type":"approfondimento","link":"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/risque-atex\/les-zones-dangereuses-hazardous-locations-la-classification-atex-aux-etats-unis-et-au-canada\/","title":{"rendered":"Les zones dangereuses (Hazardous Locations) : La classification ATEX aux \u00c9tats-Unis et au Canada"},"content":{"rendered":"\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>Les normes appliqu\u00e9es dans le monde nord-am\u00e9ricain en mati\u00e8re de classification des zones pr\u00e9sentant une possible pr\u00e9sence de substances potentiellement explosives (r\u00e9f\u00e9renc\u00e9es notamment par NFPA 2, NFPA 70, NFPA 497, NFPA 499, API 500, NFPA 505) diff\u00e8rent de celles appliqu\u00e9es dans le monde europ\u00e9en, mais leur objectif final est d\u2019identifier et de classer les zones de travail en fonction de la pr\u00e9sence de substances potentiellement explosives.<\/p>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n                    <div class=\"mb-6 relative w-full md:mb-4 lg:mb-8 xl:mb-9\">\n                \n        <div                class=\"m-headings\"\n            >\n    \n    \n<h2 class=\"a-heading text-primary font-heading text-lg lg:text-xl font-normal mt-2 first:mt-0\">\n                    Les emplacements par classe (Class Locations)    <\/h2>\n        <\/div>\n                <\/div>\n        \n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>La r\u00e9glementation nord-am\u00e9ricaine effectue une <strong data-start=\"105\" data-end=\"142\">classification des environnements<\/strong> en fonction du <strong data-start=\"158\" data-end=\"196\">type de substances ou de mat\u00e9riaux<\/strong> auxquels ils sont expos\u00e9s.<\/p>\n<p>Les <strong data-start=\"62\" data-end=\"89\">emplacements par classe<\/strong> sont au nombre de <strong data-start=\"108\" data-end=\"117\">trois<\/strong>, et sont les suivants\u202f:<\/p>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n                    <div\n                class=\"h-auto mb-6 md:mb-4 lg:mb-8 xl:mb-9  float-right ml-6 md:ml-4 lg:ml-8 xl:ml-9 overflow-hidden shadow-content-image w-full md:w-1\/4\"\n            >\n                \r\n\r\n    \r\n        \r\n            \r\n                \r\n                    <picture\r\n                        class=\"\"\r\n                                            >\r\n                                                                                                        <source\r\n                                media=\"(max-width: 150px)\"\r\n                                width=\"150\"\r\n                                height=\"150\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/pexels-enginakyurt-11116153.jpg\"\r\n                                type=\"image\/jpeg\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"300\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/pexels-enginakyurt-11116153.jpg\"\r\n                                type=\"image\/jpeg\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 768px)\"\r\n                                width=\"768\"\r\n                                height=\"768\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/pexels-enginakyurt-11116153.jpg\"\r\n                                type=\"image\/jpeg\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 1024px)\"\r\n                                width=\"1024\"\r\n                                height=\"1024\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/pexels-enginakyurt-11116153.jpg\"\r\n                                type=\"image\/jpeg\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/pexels-enginakyurt-11116153.jpg\"\r\n                                                        title=\"pexels-enginakyurt-11116153\"\r\n                                                        type=\"image\/jpeg\"\r\n                        \/>\r\n                    <\/picture>\r\n\r\n                \r\n\r\n                    \r\n    \r\n            <\/div>\n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <ul>\n<li><strong><em>Emplacements de Classe I : Gaz ou vapeurs issus de liquides inflammables <\/em><\/strong>(Les emplacements de Classe I sont ceux dans lesquels des gaz inflammables, des vapeurs produites par des liquides inflammables ou des vapeurs produites par des liquides combustibles sont, ou peuvent \u00eatre, pr\u00e9sents dans l&rsquo;air en quantit\u00e9s suffisantes pour former des m\u00e9langes explosifs ou inflammables [500.5])<\/li>\n<\/ul>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n                    <div\n                class=\"h-auto mb-6 md:mb-4 lg:mb-8 xl:mb-9 float-left mr-6 md:mr-4 lg:mr-8 xl:mr-9  overflow-hidden shadow-content-image w-full md:w-1\/4\"\n            >\n                \r\n\r\n    \r\n        \r\n            \r\n                \r\n                    <picture\r\n                        class=\"\"\r\n                                            >\r\n                                                                                                        <source\r\n                                media=\"(max-width: 150px)\"\r\n                                width=\"150\"\r\n                                height=\"150\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/regrind-150x150.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 176px)\"\r\n                                width=\"176\"\r\n                                height=\"300\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/regrind-176x300.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 414px)\"\r\n                                width=\"414\"\r\n                                height=\"706\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/regrind.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 414px)\"\r\n                                width=\"414\"\r\n                                height=\"706\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/regrind.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/regrind.png.webp\"\r\n                                                        title=\"regrind\"\r\n                                                        type=\"image\/webp\"\r\n                        \/>\r\n                    <\/picture>\r\n\r\n                \r\n\r\n                    \r\n    \r\n            <\/div>\n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <ul>\n<li><strong data-start=\"76\" data-end=\"105\">Emplacements de Classe II<\/strong> <em><strong>: Poussi\u00e8res combustibles<\/strong> <\/em>(Les emplacements de Classe II sont ceux qui pr\u00e9sentent un danger en raison de la pr\u00e9sence de poussi\u00e8res combustibles [500.5])<\/li>\n<\/ul>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n                    <div\n                class=\"h-auto mb-6 md:mb-4 lg:mb-8 xl:mb-9  float-right ml-6 md:ml-4 lg:ml-8 xl:ml-9 overflow-hidden shadow-content-image w-full md:w-1\/4\"\n            >\n                \r\n\r\n    \r\n        \r\n            \r\n                \r\n                    <picture\r\n                        class=\"\"\r\n                                            >\r\n                                                                                                        <source\r\n                                media=\"(max-width: 150px)\"\r\n                                width=\"150\"\r\n                                height=\"150\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine2-150x150.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"147\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine2-300x147.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 629px)\"\r\n                                width=\"629\"\r\n                                height=\"309\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine2.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 629px)\"\r\n                                width=\"629\"\r\n                                height=\"309\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine2.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine2.png.webp\"\r\n                                                        title=\"Immagine2\"\r\n                                                        type=\"image\/webp\"\r\n                        \/>\r\n                    <\/picture>\r\n\r\n                \r\n\r\n                    \r\n    \r\n            <\/div>\n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <ul>\n<li><em><strong>Emplacements de Classe III : Fibres et particules inflammables<\/strong><\/em> (pr\u00e9sence de fibres facilement inflammables ou l\u00e0 o\u00f9 des mat\u00e9riaux produisant des particules combustibles sont manipul\u00e9s, fabriqu\u00e9s ou utilis\u00e9s, mais o\u00f9 ces fibres\/particules ne sont pas susceptibles d\u2019\u00eatre en suspension dans l\u2019air en quantit\u00e9s suffisantes pour produire des m\u00e9langes inflammables [500.5]).<\/li>\n<\/ul>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n        \n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n                    <div class=\"mb-6 relative w-full md:mb-4 lg:mb-8 xl:mb-9\">\n                \n        <div                class=\"m-headings\"\n            >\n    \n    \n<h2 class=\"a-heading text-primary font-heading text-lg lg:text-xl font-normal mt-2 first:mt-0\">\n                    Les divisions de classe    <\/h2>\n        <\/div>\n                <\/div>\n        \n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>La r\u00e9glementation d\u00e9cide d\u2019effectuer une <strong>classification<\/strong> des zones, ou plut\u00f4t <strong>des<\/strong> <strong>zones dangereuses<\/strong>, en deux classes, qui se basent sur la <strong>fr\u00e9quence<\/strong> de la <strong>pr\u00e9sence de la source de risque.<\/strong><\/p>\n<p data-start=\"59\" data-end=\"109\">Les divisions des classes sont les suivantes :<\/p>\n<ul>\n<li data-start=\"111\" data-end=\"486\"><strong>Division I : Pr\u00e9sence constante ou occasionnelle<\/strong>, pendant le fonctionnement normal de l\u2019installation, de substances dangereuses. \u00c9quivalent \u00e0 la zone 0\/20 ou 1\/21.<\/li>\n<li data-start=\"111\" data-end=\"486\"><strong>Division II : Pr\u00e9sence<\/strong> de la substance dangereuse uniquement <strong>en cas de d\u00e9faillance<\/strong> (\u00e0 condition que la d\u00e9faillance ne soit pas fr\u00e9quente, sinon cela rel\u00e8ve de la Division I). \u00c9quivalent \u00e0 la zone 2\/22.<\/li>\n<\/ul>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-none\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n                    <div\n                class=\"h-auto mb-6 md:mb-4 lg:mb-8 xl:mb-9  float-right ml-6 md:ml-4 lg:ml-8 xl:ml-9 overflow-hidden shadow-content-image w-full md:w-1\/2\"\n            >\n                \r\n\r\n    \r\n        \r\n            \r\n                \r\n                    <picture\r\n                        class=\"\"\r\n                                            >\r\n                                                                                                        <source\r\n                                media=\"(max-width: 150px)\"\r\n                                width=\"150\"\r\n                                height=\"150\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine3-150x150.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"88\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine3-300x88.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 768px)\"\r\n                                width=\"768\"\r\n                                height=\"226\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine3-768x226.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 850px)\"\r\n                                width=\"850\"\r\n                                height=\"250\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine3.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/07\/Immagine3.png.webp\"\r\n                                                        title=\"Immagine3\"\r\n                                                        type=\"image\/webp\"\r\n                        \/>\r\n                    <\/picture>\r\n\r\n                \r\n\r\n                    \r\n    \r\n            <\/div>\n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>M\u00eame si, comme mentionn\u00e9 pr\u00e9c\u00e9demment, la r\u00e9glementation nord-am\u00e9ricaine diff\u00e8re de celle europ\u00e9enne, elle pr\u00e9sente des \u00e9quivalences avec cette derni\u00e8re.<\/p>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n                    <div class=\"mb-6 relative w-full md:mb-4 lg:mb-8 xl:mb-9\">\n                \n        <div                class=\"m-headings\"\n            >\n    \n    \n<h2 class=\"a-heading text-primary font-heading text-lg lg:text-xl font-normal mt-2 first:mt-0\">\n                    Les groupes de substances (Classe I et II)    <\/h2>\n        <\/div>\n                <\/div>\n        \n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>La r\u00e9glementation d\u00e9cide \u00e9galement de proc\u00e9der \u00e0 une <strong>classification<\/strong> des <strong>mat\u00e9riaux<\/strong> et des <strong>substances<\/strong> dangereuses en fonction de leur <strong>degr\u00e9 de dangerosit\u00e9<\/strong>, en utilisant comme param\u00e8tres de r\u00e9f\u00e9rence le MESG et le rapport MIC, avec une subdivision en 7 lettres.<\/p>\n<p data-start=\"64\" data-end=\"178\">Les quatre premiers groupes appartiennent aux gaz, tandis que les trois derniers appartiennent aux poussi\u00e8res.<\/p>\n<ul>\n<li data-start=\"180\" data-end=\"1677\"><strong>Groupe A<\/strong> : Ac\u00e9tyl\u00e8ne.<\/li>\n<li data-start=\"180\" data-end=\"1677\"><strong>Groupe B :<\/strong> Gaz inflammable, vapeur produite par un liquide inflammable ou vapeur produite par un liquide combustible m\u00e9lang\u00e9e \u00e0 l\u2019air qui peut br\u00fbler ou exploser, ayant une valeur de MESG (\u00e9cart exp\u00e9rimental s\u00e9curis\u00e9 maximal) inf\u00e9rieure ou \u00e9gale \u00e0 0,45 mm ou un rapport MIC (rapport du courant d\u2019inflammation minimal) inf\u00e9rieur ou \u00e9gal \u00e0 0,40.<\/li>\n<li data-start=\"180\" data-end=\"1677\"><strong>Groupe C :<\/strong> Idem\u2026 valeur MESG sup\u00e9rieure \u00e0 0,45 mm et inf\u00e9rieure ou \u00e9gale \u00e0 0,75 mm, ou rapport MIC sup\u00e9rieur \u00e0 0,40 et inf\u00e9rieur ou \u00e9gal \u00e0 0,80.<\/li>\n<li data-start=\"180\" data-end=\"1677\"><strong>Groupe D :<\/strong> Idem\u2026 valeur MESG sup\u00e9rieure \u00e0 0,75 mm ou rapport MIC sup\u00e9rieur \u00e0 0,80.<\/li>\n<li data-start=\"180\" data-end=\"1677\"><strong>Groupe E<\/strong> : (poussi\u00e8res m\u00e9talliques) Atmosph\u00e8res contenant des poussi\u00e8res m\u00e9talliques combustibles, incluant l\u2019aluminium, le magn\u00e9sium et leurs alliages commerciaux, ou d\u2019autres poussi\u00e8res combustibles dont la taille des particules, l\u2019abrasivit\u00e9 et la conductivit\u00e9 pr\u00e9sentent des risques similaires lors de l\u2019utilisation d\u2019\u00e9quipements \u00e9lectriques.<\/li>\n<li data-start=\"180\" data-end=\"1677\"><strong>Groupe F<\/strong> <strong>:<\/strong> Atmosph\u00e8res contenant des poussi\u00e8res carbon\u00e9es combustibles qui contiennent plus de 8 % de volatils emprisonn\u00e9s au total ou qui ont \u00e9t\u00e9 sensibilis\u00e9es par d\u2019autres mat\u00e9riaux de fa\u00e7on \u00e0 pr\u00e9senter un risque d\u2019explosion. Le charbon, la suie, le charbon de bois et la poussi\u00e8re de coke sont des exemples de poussi\u00e8res carbon\u00e9es.<\/li>\n<li data-start=\"180\" data-end=\"1677\"><strong>Groupe G :<\/strong> Atmosph\u00e8res contenant des poussi\u00e8res combustibles non incluses dans les groupes E ou F, incluant la farine, les c\u00e9r\u00e9ales, le bois, le plastique et les produits chimiques.<\/li>\n<\/ul>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n","protected":false},"excerpt":{"rendered":"<p>Les normes appliqu\u00e9es en Am\u00e9rique du Nord en mati\u00e8re de s\u00e9curit\u00e9 en atmosph\u00e8res explosives (r\u00e9f\u00e9renc\u00e9es notamment par la NFPA 2, 70, 497, 499, 500, 505) diff\u00e8rent de celles en vigueur en Europe.<br \/>\nCependant, leur objectif commun est de garantir des conditions de s\u00e9curit\u00e9 optimales en limitant les risques dans les environnements de travail expos\u00e9s \u00e0 des atmosph\u00e8res potentiellement explosives de gaz ou de poussi\u00e8res.<\/p>\n","protected":false},"author":2,"featured_media":48414,"parent":0,"menu_order":13,"template":"","meta":{"_acf_changed":false,"footnotes":""},"tipologia_approfondimento":[162],"class_list":["post-48421","approfondimento","type-approfondimento","status-publish","has-post-thumbnail","hentry","tipologia_approfondimento-risque-atex"],"acf":{"sottotitolo":"","allegati":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Les zones dangereuses (Hazardous Locations) : La classification ATEX aux \u00c9tats-Unis et au Canada - Gt-Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gt-engineering.it\/fr\/approfondissement\/risque-atex\/les-zones-dangereuses-hazardous-locations-la-classification-atex-aux-etats-unis-et-au-canada\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les zones dangereuses (Hazardous Locations) : La classification ATEX aux \u00c9tats-Unis et au Canada - Gt-Engineering\" \/>\n<meta property=\"og:description\" content=\"Les normes appliqu\u00e9es en Am\u00e9rique du Nord en mati\u00e8re de s\u00e9curit\u00e9 en atmosph\u00e8res explosives (r\u00e9f\u00e9renc\u00e9es notamment par la NFPA 2, 70, 497, 499, 500, 505) diff\u00e8rent de celles en vigueur en Europe. 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