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EPA Certification Exam Question And Answers (latest 2023)
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EPA Certification Exam Latest Question And Answers (2023/2024) Which Refrigerants contain the most chlorine? Correct Answer CFC's As of what date did it become unlawful to intentionally release Class 1 and Class 2 refrigerants to the atmosphere? Correct Answer July 1, 1992 Which Refrigera...
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