Page 747 - Dust Explosions in the Process Industries
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700  Dust Explosions in the Process Industries


           Table A.2   Maximum permissible O2concentrationfor inerting dust clouds in atmospheres of  O2+ NZ

                                      Median particle   Maximum 0,
                                     diameter by mass   concentration for
            Dust type                     (run)      inerting by N,  (~01%)
            Cellulosic materials
            Cellulose                      22               9
            Cellulose                      51              11
            Waste from wood cutting       130              14
            Wood                           27              10
             Food and feedstuffs
             Pea flour                     25              15
             Maize starch                  17               9
             Waste from malted barley      25               11
             Rye flour 1150                29               13
             Starch derivative             24               14
             Wheat flour 550               60              11
             Coals
   742   743   744   745   746   747   748   749   750   751   752