Take this free EPA 608 practice exam to see the types of questions that will be on an actual EPA 608 certification exam. The Federal Clean Air Act, under Section 8, requires persons working with regulated refrigerants to be certified. There are four types of certification: Type I - limited to small appliances (5 lbs. or less refrigerant)

The AHAM/NARDA Refrigerant Recovery Certification Program offers different test versions, each based on the EPA’s official bank of questions that are randomly chosen so that no one gets the same test.

2024年12月13日 · CFCs are commonly used as refrigerants, solvents, and foam blowing agents. The most common CFCs are CFC-11, CFC-12, CFC-113, CFC-114, and CFC-115. The ozone depletion potential (ODP) for each CFC is, respectively, 1, 1, 0.8, 1, and 0.6.

The chlorofluorocarbon (CFC) certification process consists of a single CFC Universal Exam Prep Course that consists of four parts. As well as, CFC Universal Exam that lasts 3 hours. The course covers a variety of topics related to refrigeration and prepares you to take a certification exam.

条件性恐惧实验系统（场景恐惧系统）用于小型啮齿类动物（大、小鼠）环境相关条件性恐惧实验研究。 啮齿类动物在恐惧时会表现出特有的不动状态（ Freezing ），动物在这种情况下倾向于保持静止不动的防御姿势。 抗抑郁药和抗中枢兴奋药可以明显缩短不动状态持续的时间。 实验过程中，实验对象被给与一个声音信号（条件刺激），随后给予电击（非条件）刺激。 该训练称为条件性训练，训练结束后实验动物进行声音信号或环境联系性实验。 一般情况下啮齿类动物对相 …

2025年3月26日 · The Chlorofluorocarbon (CFC) certification enables HVAC professionals to service and repair equipment that uses CFC byproducts, with different certification types for various appliances. Gaining CFC certification includes completing CFC training courses, understanding exam topics related to safety and environmental regulations, passing the exam ...

2023年1月13日 · Chlorofluorocarbon (CFC) is a nonflammable chemical that contains chlorine, fluorine, and carbon atoms. The following exam is produced to test knowledge of safe refrigerant handling and EPA regulations regarding the HVAC industry.

2015年4月24日 · What Is the EPA 608 Exam? The EPA 608 exam is for HVAC technicians to understand refrigerant recovery, disposable, storage, fines, and HVAC regulations. An HVAC technician is required by law to have EPA 608 certification to work on heating and cooling systems with refrigerants.

2016年10月19日 · Technicians must pass an EPA-approved test to earn Section 608 technician certification. Below are some of the topics covered on the tests for each of the four types of technician certification. (Note that universal certification involves topics pertaining to the other three types of certification).

2025年1月24日 · Section 608 technician certification is required to dispose of appliances, except for small appliances (an appliance that is fully manufactured, charged, and hermetically sealed in a factory with five pounds or less of refrigerant), motor vehicle air conditioners (MVACs), or MVAC-like appliances.