Fashe-Tabbacin Matsayin Db

Db yana wakiltar sabon ma'auni na ƙasa a cikin alamun tabbatar da fashewa da matakan kariya, musamman tsara don na'urori a cikin ƙura da ke dacewa da Yankuna 21 kuma 22.

III	C	T135 ℃	Db	IP65
III Kurar saman		T1 450 ℃	Ma	IP65
		T2 300 ℃	Mb
		T3 200 ℃
	A Tawaga masu tashi da wuta		Da
		T4 135 ℃
			Db
	B Kurar da ba ta da ƙarfi	T2 100 ℃	Dc
	C Ƙura mai aiki	T6 85 ℃

Misali shine DIP A21 TA T6 Db DIP, yana nuna na'urar don muhallin ƙura; idan aka yi masa lakabi da Ex, yana nuna dacewa ga yanayin gas.