▁the ▁Model ▁Reg ulations . ▁It ▁is ▁transport ed ▁as ▁small ▁fla kes ▁in ▁pl astic ▁b ags ▁( maxim um ▁ 5 0   kg ▁net ▁mass ), ▁which ▁are ▁themselves ▁within ▁card board ▁drums ▁to ▁avoid ▁te aring . ▁This ▁does ▁not ▁count ▁as ▁" con fin ement " ▁in ▁the ▁meaning ▁of ▁explos ives ▁tests : ▁indeed , ▁the ▁special ▁pack ing ▁is ▁intended ▁to ▁prevent ▁over - con fin ement ▁during ▁transport . ▁ ▁It ▁will ▁expl ode ▁when ▁det on ated ▁under ▁conf in ement ▁( UN ▁gap ▁test ) ▁or ▁when ▁he ated ▁under ▁conf in ement ▁( K o enen ▁test ), ▁but ▁does ▁not ▁expl ode ▁under ▁the ▁B AM ▁fall ham mer ▁test ▁( lim iting ▁impact ▁energy ▁ 2 5   J ) ▁or ▁the ▁B AM ▁fr iction ▁test ▁( lim iting ▁load ▁> 3 6 0   N ). ▁There ▁is ▁no ▁ign ition , ▁explos ion , ▁self - he ating ▁or ▁visible ▁decomposition ▁when ▁mus k ▁x yl ene ▁is ▁he ated ▁( without ▁conf in ement ) ▁to ▁ 7 5   ° C ▁for ▁ 4 8   h ours . ▁ ▁Nevertheless , ▁mus k ▁x yl ene ▁is ▁class ified ▁in ▁the ▁European ▁Union ▁as ▁an ▁explos ive ▁under ▁the ▁D anger ous ▁Sub st ances ▁Direct ive ▁and ▁as ▁a ▁category   1 . 1 ▁explos ive ▁under ▁the ▁C LP ▁Reg ulation . ▁The ▁European ▁Union ▁classification ▁reflect s ▁the ▁fact ▁that ▁ha