Placard: Cargo

Methyl magnesium bromide, in ethyl ether

Methyl fluoride, or Refrigerant gas R 41

Methyl chloride and methylene chloride mixtures

Methyl acetylene and propadiene mixtures, stabilized

Methane, compressed or Natural gas, compressed (with high methane content)

Metallic substance, water-reactive, n.o.s

Metallic substance, water-reactive, self-heating, n.o.s

Metal hydrides, water reactive, n.o.s

Metal catalyst, wetted with a visible excess of liquid

Mercury based pesticides, liquid, flammable, toxic, flash point less than 23 degrees C