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🇺🇸 EPA 608 Certification · flashcards
EPA 608 Certification Core: Recovery, Recycling, Reclamation and Safety Flashcards
50 question-and-answer cards covering Core: Recovery, Recycling, Reclamation and Safety as it is examined in EPA 608 Certification. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Core: Recovery, Recycling, Reclamation and Safety deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
Why must a recovery cylinder not be filled beyond 80% of capacity?
To leave room for liquid expansion as temperature rises; overfilling can cause hydrostatic (liquid) expansion that ruptures the cylinder.
What is the hazard of overfilling a refrigerant cylinder past the 80% limit?
Liquid refrigerant expands with temperature; with no vapor space, pressure rises sharply and the cylinder can explode/rupture violently.
What device or method is used to ensure a recovery cylinder is not overfilled?
A scale to weigh the cylinder, or a float/electronic level device that stops filling at 80% capacity.
What two pieces of PPE are essential when handling refrigerant to protect skin and eyes?
Chemical-resistant gloves and safety goggles/glasses (to prevent frostbite and eye injury from liquid refrigerant).
What injury can occur if liquid refrigerant contacts skin or eyes?
Frostbite (freezing of tissue), because liquid refrigerant evaporates rapidly and is extremely cold.
What breathing hazard does refrigerant pose in an enclosed, poorly ventilated space?
Refrigerant is heavier than air and displaces oxygen, which can cause asphyxiation/suffocation.
What breathing equipment is required when entering an area with a high concentration of refrigerant or an oxygen-deficient atmosphere?
Self-Contained Breathing Apparatus (SCBA).
Why is an ordinary dust mask or cartridge respirator inadequate in a high-refrigerant-concentration area?
They do not supply oxygen; in an oxygen-displaced atmosphere only an SCBA (self-contained air supply) protects against asphyxiation.
What toxic gas can form when refrigerant contacts an open flame or very hot surface?
Phosgene gas (and other toxic decomposition products such as hydrofluoric/hydrochloric acid), which is poisonous.
Why should you never use compressed air or oxygen to pressure-test a system that may contain refrigerant?
Mixing oxygen (or air) with refrigerant under pressure can form a combustible/explosive mixture; use dry nitrogen instead.
What inert gas is recommended for pressure-testing or purging refrigerant systems?
Dry nitrogen (often with a trace of refrigerant for leak detection).
When transporting refrigerant cylinders in a vehicle, how should they be secured and positioned?
Secured upright and restrained (e.g., strapped) to prevent rolling/tipping, and kept in a ventilated area, away from heat sources.
At what maximum temperature should refrigerant cylinders be stored?
Below 125°F (cylinders should never be exposed to temperatures above 125°F).
Why must refrigerant cylinders be kept away from heat and direct sunlight during storage?
Heat raises internal pressure, which can exceed the cylinder's pressure-relief setting and cause rupture or venting.
Before disposing of an appliance, what must be done with its refrigerant?
The refrigerant must be fully recovered to the required EPA recovery level before the appliance is disposed of or scrapped.
Who is responsible for ensuring refrigerant is recovered from appliances being disposed of (e.g., at a scrap yard)?
The final person in the disposal chain (e.g., the scrap recycler) must verify recovery, but anyone who takes the final step of disposal must ensure the refrigerant was removed.
What signed statement must accompany small appliances sent for disposal under EPA rules?
A signed statement (or label) verifying that the refrigerant has been properly recovered from the appliance.
How must recovered refrigerant be classified for DOT shipping purposes?
As hazardous material; it must be shipped in DOT-approved cylinders with proper labeling, marking, and shipping papers.
What information must DOT shipping labels/papers identify for a cylinder of recovered refrigerant?
The proper shipping name, hazard class, identification (UN) number, and the contents of the cylinder.
Recordkeeping: what must technicians/owners keep regarding recovery and disposal of refrigerant?
Records (invoices, logs) documenting the quantity of refrigerant recovered, recycled, reclaimed, sold, or disposed of, and the names/locations involved.
How long must records of refrigerant disposal/recovery and sales generally be retained?
At least 3 years.
What must a reclaimer maintain records of?
The names and addresses of suppliers of used refrigerant and the quantity of refrigerant received, reclaimed, and sold.
How long is a Section 608 technician certification valid?
It is valid for life (it does not expire).
What must a Section 608 certified technician keep on file as proof of certification, and for how long?
A copy of the certification card/record must be kept at the technician's place of business for as long as the technician remains employed there (proof must be retained and available for EPA inspection).
What this deck covers
The Core: Recovery, Recycling, Reclamation and Safety deck follows the EPA 608 Certification Core: Recovery, Recycling, Reclamation and Safety syllabus — 4 chapters and 16 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 12.5 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 110 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Core: Recovery, Recycling, Reclamation and Safety flashcards FAQ
How many Core: Recovery, Recycling, Reclamation and Safety flashcards are in this EPA 608 Certification deck?
50 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these EPA 608 Certification flashcards free?
Yes. The preview here is free to read with no signup, and the full 50-card deck is free inside the Examius app.
What do the Core: Recovery, Recycling, Reclamation and Safety cards cover?
They follow the EPA 608 Certification Core: Recovery, Recycling, Reclamation and Safety syllabus — 4 chapters and 16 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.