Class 1.3G devices are defined as which of the following?

Class 1.3G devices are defined as which of the following?

• A. Mass Explosion; Flash Powder, Salutes in bulk.
• B. Projection but Non Mass Explosion; Fireworks (Rarely Used)
• C. Mass Fire, Minor Blast or Fragment 'most Display Fireworks'
• D. Very Insensitive Explosive

Answer: (C)

Class 1.3G devices are defined by their hazard profile: they can produce a significant fire and, at most, a minor blast or fragmentation, but they are not capable of a mass explosion. This is why they’re used for most display fireworks—the effects come with a fire risk and minor blast or fragmentation rather than a full mass explosion. The other descriptions describe devices with a mass explosion, or those intended to project without a mass explosion, or unrelated types of explosives, which don’t fit 1.3G. So the definition that matches is devices that can cause mass fire, a minor blast, or fragmentation, as seen in most display fireworks.

Class 1.3G devices are defined by their hazard profile: they can produce a significant fire and, at most, a minor blast or fragmentation, but they are not capable of a mass explosion. This is why they’re used for most display fireworks—the effects come with a fire risk and minor blast or fragmentation rather than a full mass explosion. The other descriptions describe devices with a mass explosion, or those intended to project without a mass explosion, or unrelated types of explosives, which don’t fit 1.3G. So the definition that matches is devices that can cause mass fire, a minor blast, or fragmentation, as seen in most display fireworks.