HVAC Refrigerant Certification Study Guide for the EPA 608 Exam 2026-2027, Section 608 Universal Prep, 200 Practice Questions PDF

Earn your HVAC refrigerant certification with a complete, illustrated study guide for the EPA Section 608 Technician Certification exam, organized exactly like the test: Core, Type I, Type II, and Type III. It covers the rules, numbers, and service practices the exam relies on and includes two full-length practice tests written at real exam level.

This 87-page digital guide is built for fast, accurate recall: every recovery requirement, evacuation level, leak repair threshold, and cylinder rule is laid out in quick-reference tables, with diagrams of the equipment and the reason behind each rule. It is written for HVAC and refrigeration students, appliance technicians, building maintenance staff, and anyone earning Type I, Type II, Type III, or Universal certification.

What's Inside

• An exam overview: the four sections, 25 questions per section, the 18-of-25 passing standard, proctored and open-book Type I options, the certification card, and the current question bank with R-32, R-454B, and A2L refrigerants
• Core, part 1: ozone depletion, ODP and GWP, the Montreal Protocol and phaseout dates, the Clean Air Act venting prohibition, the sales restriction, leak repair, recordkeeping, safe disposal, and penalties
• Core, part 2: refrigerant families, blends, and oils; ASHRAE safety groups and A2L refrigerants; recovery, recycling, and reclamation; recovery cylinders and shipping; the refrigeration cycle; leak testing; evacuation and dehydration; and personal safety
• Type I: the small-appliance definition, 90% / 80% / 4 in. Hg recovery rules, self-contained and system-dependent recovery, access valves, special and flammable refrigerants, and disposal
• Type II: leak detection, the leak repair program and deadlines, push-pull recovery, the full required evacuation level table, major and non-major repairs, charging, and A2L and brazing safety
• Type III: low-pressure chillers, purge units, rupture discs, leak testing with controlled heat, recovery and evacuation levels, preventing freeze-ups, charging, oil handling, and equipment-room safety
• Illustrated diagrams: the ozone layer, the chlorine cycle, recovery cylinders, the refrigeration cycle, a vacuum decay chart, small-appliance access points, push-pull recovery, and a low-pressure centrifugal chiller
• A final review checklist of key numbers and dates, 1-, 3-, and 6-week study schedules, FAQs, test-taking strategies, and recommended resources
• 2 full-length practice tests (200 four-option questions, each test split into Core, Type I, Type II, and Type III parts of 25), with a separate answer key explaining every answer

Format

• Instant digital download (PDF), 8.5 × 11 in
• Clickable table of contents
• Print it or study on a tablet, laptop, or phone

Please note: This is a digital product. No physical item will be shipped.

Test Treasure Publication is not affiliated with or endorsed by the U.S. Environmental Protection Agency, any EPA-approved certifying organization, or any testing organization; all exam and organization names referenced are trademarks of their respective owners.