Dè a tha an ìre dìon-spreadhaidh ABC a’ ciallachadh

Tha an “abc” represents gas classifications, categorized into three levels—IIA, IIB, and IIC—according to the maximum experimental safe gap (MESG) or the minimum igniting current (MIC).

Roinn-seòrsa staid	Seòrsachadh gas	Gasan riochdaire	Ignition Spark Energy as ìsle
Fon Mèinn	mi	Meatan	0.280mJ
Factaraidhean Taobh a-muigh na Mèinn	IIA	Propane	0.180mJ
	IIB	Eitilein	0.060mJ
	IIC	Hydrogen	0.019mJ

Of these, the IIC classification is deemed the most hazardous, with IIB and IIA following in decreasing order of risk. Gases falling under the IIC classification include hydrogen, acetylene, carbon disulfide, ethyl nitrate, and water gas. Those in the IIB category encompass ethylene, coke oven gas, propyne, agus haidridean sulfide. The IIA classification includes gases such as methane, ethane, beinséin, agus diesel.