{"id":8558,"date":"2018-07-03T15:41:15","date_gmt":"2018-07-03T13:41:15","guid":{"rendered":"https:\/\/consilab.de\/benefits\/parameters-for-substances\/brennzahl-brennverhalten-abbrandgeschwindigkeit\/"},"modified":"2022-07-08T10:49:47","modified_gmt":"2022-07-08T08:49:47","slug":"combustion-factor-combustion-behavior-burn-rate","status":"publish","type":"page","link":"https:\/\/consilab.de\/en\/benefits\/parameters-for-substances\/combustion-factor-combustion-behavior-burn-rate\/","title":{"rendered":"Combustion factor\/combustion behavior, burn rate"},"content":{"rendered":"

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Combustion factor\/combustion behavior, burn rate<\/h1>\n

If substances in powder form are used in a production plant, it is essential that these substances be tested with respect to their burning and explosion behavior.<\/h2>\n

An important parameter here is the combustion factor. It is one measurement of how a stored dust ignites and behaves after ignition.<\/p>\n

The combustion behavior often is also of interest at higher temperatures, such as in drying processes. The combustion factor can therefore also be determined at an increased temperature of 100 \u00b0C, as there are often significant differences in the combustion behavior here.<\/p>\n

If the test substance melts and, due to melting, does not burn, the test is conducted in a mixture with 20% diatomaceous earth by weight. The test examines whether product accumulations in porous materials spontaneously combust.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

[\/vc_column_text][vc_single_image image=”5012″ img_size=”full” alignment=”center”][vc_column_text el_class=”redborderleft”]<\/p>\n\n\n\n\n\n\n\n\n\n
Combustion factor <\/strong><\/td>\nDescription<\/strong><\/td>\nExample<\/strong><\/td>\n<\/tr>\n
1<\/td>\nNo ignition<\/td>\nTable salt<\/td>\n<\/tr>\n
2<\/td>\nBrief ignition and rapid extinguishing<\/td>\nTartaric acid<\/td>\n<\/tr>\n
3<\/td>\nLocal burning or smoldering with only slight spreading<\/td>\nLactose<\/td>\n<\/tr>\n
4<\/td>\nSmoldering without sparks (smoldering fire) or \u2028slow decomposition without flames<\/td>\nTobacco<\/td>\n<\/tr>\n
5<\/td>\nSpread of open fire or burning with flying sparks<\/td>\nSulfur<\/td>\n<\/tr>\n
6<\/td>\nFlash fire or rapid decomposition without flames<\/td>\nGunpowder<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Combustion behavior is not only of interest in terms of the plant safety concept, however, but also for the classification of solid goods as defined by the transport law, GHS or CLP Regulation. Classification for the transportation of solid substances with regard to their combustion behavior is determined with the help of the burn rate (UN Test N.1).<\/p>\n

The combustion factor can also provide valuable information here as well. If, for example, a combustion factor of BZ 1 to BZ 3 is determined, a self-actuating spread of fire by the test substance is not postulated. Accordingly, test efforts to determine the burn rate (UN Test N.1) can be reduced.
\nIf we can assist you with a similar issue, please contact us. Our experts will be happy to help you.<\/p>\n

Sources<\/strong>
\nUN Transportation Directive:\u2028UN Recommendations on the Transport of Dangerous Goods: Manual of Tests and Criteria, Rev. 5 (2009) and UN-Model Regulations, Rev. 19 (2015)<\/p>\n

Regulation (EC) 440\/2008 establishing test methods according to Regulation (EC) 1907\/2006 (REACH)<\/p>\n

VDI 2263, Sheet 1: \u201cTest methods for the determination of the safety characteristic of dusts.\u201d[\/vc_column_text][vc_row_inner rt_row_style=”global-style” rt_bg_custom_alignment=”top”][vc_column_inner width=”1\/2″ rt_column_shadow=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_attachment=”scroll”][vc_btn title=”Parameters for substances” style=”classic” color=”purple” i_icon_fontawesome=”fas fa-angle-left” add_icon=”true” link=”url:%2Fen%2Fbenefits%2Fparameters-for-substances%2F” el_class=”btn–red”][\/vc_column_inner][vc_column_inner width=”1\/2″ rt_column_shadow=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_attachment=”scroll”][vc_btn title=”Benefits” style=”classic” color=”purple” i_icon_fontawesome=”fas fa-angle-left” add_icon=”true” link=”url:%2Fen%2Fbenefits%2F|title:Benefits” el_class=”btn–red”][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]<\/p>\n","protected":false},"excerpt":{"rendered":"

[vc_row rt_row_background_width=”fullwidth” rt_row_content_width=”default” rt_row_style=”default-style” rt_row_borders=”” rt_row_shadows=”” rt_row_paddings=”false” rt_bg_effect=”classic” rt_bg_image_repeat=”repeat” rt_bg_size=”cover” rt_bg_position=”right top” rt_bg_attachment=”scroll” rt_bg_video_format=”self-hosted”][vc_column width=”1\/3″ rt_column_shadow=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_attachment=”scroll” class=”download” rt_bg_color=”” rt_bg_overlay_color=”” offset=”vc_hidden-sm vc_hidden-xs” css=”.vc_custom_1532422086290{padding-bottom: 0px !important;}” rt_padding_bottom=”0″][vc_widget_sidebar sidebar_id=”rt-theme-20-common-sidebar”][\/vc_column][vc_column width=”2\/3″ rt_column_shadow=”” rt_bg_image_repeat=”repeat” rt_bg_size=”auto auto” rt_bg_attachment=”scroll” class=”maincontent” rt_bg_color=”” rt_bg_overlay_color=”” css=”.vc_custom_1532422082139{margin-bottom: 1em !important;padding-bottom: 0px !important;}”][vc_column_text el_class=”redborderleft”] Combustion factor\/combustion behavior, burn rate If substances in powder form …
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