{"id":9811,"date":"2018-07-03T15:41:15","date_gmt":"2018-07-03T13:41:15","guid":{"rendered":"https:\/\/consilab.de\/prestations\/caracteristiques-des-substances-relevant-de-la-securite\/combustion-factor-combustion-behavior-burn-rate\/"},"modified":"2022-07-11T16:05:58","modified_gmt":"2022-07-11T14:05:58","slug":"indice-de-combustibilite-comportement-au-feu-vitesse-de-combustion","status":"publish","type":"page","link":"https:\/\/consilab.de\/fr\/prestations\/caracteristiques-des-substances-relevant-de-la-securite\/indice-de-combustibilite-comportement-au-feu-vitesse-de-combustion\/","title":{"rendered":"Indice de combustibilit\u00e9 \/ comportement au feu, vitesse de combustion"},"content":{"rendered":"

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Indice de combustibilit\u00e9 \/ comportement au feu, vitesse de combustion<\/h1>\n

LORSQU\u2019UNE INSTALLATION DE PRODUCTION EMPLOIE DES SUBSTANCES PULV\u00c9RULENTES, IL EST INDISPENSABLE D\u2019ANALYSER CES SUBSTANCES QUANT \u00c0 LEUR COMPORTEMENT AU FEU ET \u00c0 L\u2019EXPLOSION.<\/h2>\n

Dans ce contexte, l\u2019indice de combustibilit\u00e9 est une caract\u00e9ristique d\u00e9terminante. Il est en effet l\u2019indicateur qui permet de contr\u00f4ler de quelle mani\u00e8re les poussi\u00e8res d\u00e9pos\u00e9es s\u2019enflamment et se comportent apr\u00e8s l\u2019inflammation.<\/p>\n

Le comportement au feu est \u00e9galement souvent int\u00e9ressant, en particulier pour les processus de s\u00e9chage. De ce fait, il est \u00e9galement possible de quantifier l\u2019indice de combustion \u00e0 une temp\u00e9rature \u00e9lev\u00e9e de 100\u00b0 C, \u00e9tant donn\u00e9 qu\u2019il se traduit souvent par d\u2019importantes diff\u00e9rences de comportement au feu.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

Si l\u2019\u00e9chantillon \u00e0 contr\u00f4ler fond et s\u2019il ne br\u00fble pas en raison de la fusion, on r\u00e9alise alors l\u2019essai avec un m\u00e9lange de 20% en poids de diatomite. On d\u00e9terminera de cette mani\u00e8re si des d\u00e9p\u00f4ts de substance br\u00fblent automatiquement dans les mat\u00e9riaux poreux.[\/vc_column_text][vc_single_image image=\u00a0\u00bb5012″ img_size=\u00a0\u00bbfull\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb][vc_column_text el_class=\u00a0\u00bbredborderleft\u00a0\u00bb]<\/p>\n\n\n\n\n\n\n\n\n\n
Indice de combustion<\/strong><\/td>\nDescription<\/strong><\/td>\nExemple<\/strong><\/td>\n<\/tr>\n
1<\/td>\nNe br\u00fble pas<\/td>\nChlorure de sodium<\/td>\n<\/tr>\n
2<\/td>\nSe met bri\u00e8vement \u00e0 br\u00fbler et s\u2019\u00e9teint rapidement<\/td>\nAcide tartrique<\/td>\n<\/tr>\n
3<\/td>\nBr\u00fble localement ou rougeoie avec tout au plus une faible propagation<\/td>\nLactose<\/td>\n<\/tr>\n
4<\/td>\nS\u2019embrase sans \u00e9tincelles (feu couvant) ou d\u00e9composition lente et sans flamme<\/td>\nTabac<\/td>\n<\/tr>\n
5<\/td>\nPropagation d\u2019un feu ouvert ou combustion avec \u00e9tincelles<\/td>\nSoufre<\/td>\n<\/tr>\n
6<\/td>\nBr\u00fble par d\u00e9flagration ou se d\u00e9compose rapidement et sans flamme<\/td>\nPoudre noire<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Le comportement au feu ne pr\u00e9sente pas seulement un int\u00e9r\u00eat pour le concept de s\u00e9curit\u00e9 des installations, mais aussi pour la classification des mati\u00e8res solides en vertu du Droit du transport, du r\u00e8glement GHS ou du r\u00e8glement CLP. La classification pour le transport des mati\u00e8res solides se d\u00e9termine en fonction de leur comportement au feu au moyen de la vitesse de combustion (\u00e9preuve ONU N.1)<\/p>\n

L\u00e0 encore, l\u2019indice de combustion peut fournir de pr\u00e9cieuses informations. Lorsque par exemple un indice de combustion de BZ 1 \u2013\u00a0BZ 3 a \u00e9t\u00e9 d\u00e9termin\u00e9, rien ne laisse supposer une propagation spontan\u00e9e de l\u2019inflammation de l\u2019\u00e9chantillon \u00e0 tester. Il est ainsi possible de r\u00e9duire le nombre des tests pour la d\u00e9termination de la vitesse de combustion (\u00e9preuve ONU N.1). Si vous avez encore quelque interrogation dans ce contexte, veuillez nous en parler. Nos experts vous assisteront volontiers.<\/p>\n

Bibliographie<\/strong>
\nDroit du transport ONU\u00a0: (UN-Recommendations on the Transport of Dangerous Goods\u00a0:<\/p>\n

Manual of Tests and Criteria, Rev. 5 (2009) and UN-Model Regulations, Rev. 19 (2015)<\/p>\n

R\u00e8glement CE 440\/2008 \u00e9tablissant les m\u00e9thodes d\u2019essai conform\u00e9ment au r\u00e8glement CE 1907\/2006 (REACH)<\/p>\n

VDI\u00a02263, feuillet 1 : \u201eM\u00e9thodes de d\u00e9termination des caract\u00e9ristiques techniques de s\u00e9curit\u00e9 des poussi\u00e8res\u201c[\/vc_column_text][vc_row_inner rt_row_style=\u00a0\u00bbglobal-style\u00a0\u00bb rt_bg_custom_alignment=\u00a0\u00bbtop\u00a0\u00bb][vc_column_inner width=\u00a0\u00bb1\/2″ rt_column_shadow=\u00a0\u00bb\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbauto auto\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb][vc_btn title=\u00a0\u00bbCaract\u00e9ristiques des substances\u00a0\u00bb style=\u00a0\u00bbclassic\u00a0\u00bb color=\u00a0\u00bbpurple\u00a0\u00bb i_icon_fontawesome=\u00a0\u00bbfas fa-angle-left\u00a0\u00bb add_icon=\u00a0\u00bbtrue\u00a0\u00bb link=\u00a0\u00bburl:%2Ffr%2Fprestations%2Fcaracteristiques-des-substances-relevant-de-la-securite%2F|title:Caract%C3%A9ristiques%20des%20substances\u00a0\u00bb el_class=\u00a0\u00bbbtn–red\u00a0\u00bb][\/vc_column_inner][vc_column_inner width=\u00a0\u00bb1\/2″ rt_column_shadow=\u00a0\u00bb\u00a0\u00bb rt_bg_image_repeat=\u00a0\u00bbrepeat\u00a0\u00bb rt_bg_size=\u00a0\u00bbauto auto\u00a0\u00bb rt_bg_attachment=\u00a0\u00bbscroll\u00a0\u00bb][vc_btn title=\u00a0\u00bbPrestations\u00a0\u00bb style=\u00a0\u00bbclassic\u00a0\u00bb color=\u00a0\u00bbpurple\u00a0\u00bb i_icon_fontawesome=\u00a0\u00bbfas fa-angle-left\u00a0\u00bb add_icon=\u00a0\u00bbtrue\u00a0\u00bb link=\u00a0\u00bburl:%2Ffr%2Fprestations%2F|title:Prestations\u00a0\u00bb el_class=\u00a0\u00bbbtn–red\u00a0\u00bb][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"

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