Safety and labor protection Group B – Warning signs Group A – Prohibitory signsGroup B – Warning signsGroup V – Mandatory signsGroup G – Direction and indication signs for emergency exit and first aidGroup D – Indication signs for fire control and fire fighting equipmentGroup E – Fluorescent signs – other standardsB01 – Flammable material B02 – Explosive material B03 – Toxic material B04 – Corrosive material' B05 – Radiation B06 – Overhead loads B07 – Industrial vehicles B08 – Electric B09 – Danger B10 – Laser beam B11 – Oxidising material B12 – Non ionising radiation B13 – Magnetic field B14 – Sudden drop B15 – Sudden drop B16 – Biological material B17 – Low temperatures B18 – High temperatures B19 – Dangerous material