Exam topic · Core
Changing industry outlook
Where refrigerants are heading: the phase-downs and the substitute classes replacing old chemistry. Questions here reward understanding the direction of travel rather than memorizing chemical trivia.
The figures that belong to this topic
- Substitute refrigerants exist precisely because of the environmental rules in the other two Core areas.
How to study it
Read the topic in your prep material once for structure, then drill it through the free practice questions, which cite the regulation paragraph behind every answer. On a closed-book exam the citations are your study tool, not your crutch: they teach you why the answer is what it is.
The other topics
| Core | Environmental impact |
| Core | Laws and regulations |
| Type sections | Leak detection |
| Type sections | Recovery techniques |
| Type sections | Safety |
| Type sections | Shipping |
| Type sections | Disposal |
The 608 fact sheet
One printable page: the four certification types, the exam structure, the leak-rate and recovery numbers, all cited to the regulation. Free.
No spam. One useful sheet and occasional notes.