Pyrotechnic haulers cdls testing visually 1.4 explosive tests offline visual generator te…
Division 1.4 is the explosives division for items with only a minor explosion hazard, like many consumer fireworks. It uses the orange Class 1 placard, with 1.4 shown along with a compatibility group letter (for example 1.4G or 1.4S). The orange color and the 1.4 are the visual cues, and the letter tells you what it can be loaded with.
What Division 1.4 means
Class 1 explosives are split into divisions by how dangerous they are. Division 1.4 is near the low-hazard end: materials and articles that present only a minor explosion hazard, with effects largely confined to the package. Many consumer fireworks fall here, which is why it matters to pyrotechnic haulers.
What the placard looks like
The placard is the orange Class 1 diamond. It shows the division number 1.4 and, importantly, a compatibility group letter next to it, so you will see codes like 1.4G or 1.4S. Orange is the explosives color across all of Class 1, so the number and letter are what pin down which explosives you are carrying.
Division 1.4 in context
Where 1.4 sits among the Class 1 divisions:
| Division | Hazard |
|---|---|
| 1.1 | Mass explosion (most dangerous) |
| 1.2 | Projection hazard |
| 1.3 | Fire with minor blast or projection |
| 1.4 | Minor explosion hazard (many consumer fireworks) |
| 1.5 | Very insensitive, mass explosion hazard |
| 1.6 | Extremely insensitive, no mass explosion hazard |
1.4 is a low, but not zero, explosion hazard. Confirm details in your official manual.
Why the compatibility letter matters
The letter after 1.4 is the compatibility group, and it controls which explosives may be transported together. For fireworks you often see 1.4G (the explosive substance or article) and 1.4S (items packaged so any effect stays inside the package). For visual study, learn to read orange plus 1.4 plus the letter as one unit. Because explosives rules are strict and detailed, verify the specifics in the official regulations.
Frequently asked questions
- What is Division 1.4 explosive?
- An explosive with only a minor explosion hazard, common for consumer fireworks. It uses the orange Class 1 placard showing 1.4 and a compatibility group letter such as G or S. Confirm in your official manual.
- What does 1.4G or 1.4S mean?
- The 1.4 is the division (minor explosion hazard); the letter is the compatibility group. 1.4G is a common fireworks code, and 1.4S means effects are largely confined to the package.
- Why is the explosives placard orange?
- Orange is the color for all of Class 1, explosives. The division number and the compatibility group letter identify which explosives are present.