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44. Most refrigerant oils are what? <br />45. The components of a blended refrigerant do what from a system at uneven ratRECEIVED) <br />ess9 j�� <br />46. The proper, charging method for blended is to do what? 1 l EC E I V% E D) <br />47. What is "temperature glide?" MAY 18 2015 <br />48. What is an azeotropic mixture? ENVIRONMENTAL <br />49. Does an azeotrope have a temperature glide? hIFA!'rP nPDAUTAAFKIT <br />50. EPA regulations require what on all appliances that use a Class I or Class II refrigerant in <br />order to make it easier to recover refrigerant? <br />51. If a strong odor is detected during the recovery process, what has likely occurred? <br />52. During recovery, what will long hoses do? <br />53. During recovery, as the ambient temperature lowers, what happens to the recovery rate? <br />54. What happens when moisture is allowed to remain in an operating refrigeration system? <br />55. What is the suggested method of dehydration? <br />56. What factors affect the speed and efficiency of evacuation? <br />57. What does it mean if a system won't hold a vacuum? <br />58. Are disposable cylinders allowed for recovery? <br />59. The EPA requires that a refillable refrigerant cylinder must not be filled about what percent of its capacity <br />by weight? <br />60. Refillable cylinders must be hydrostatically tested and date stamped when? <br />61. Refillable cylinders used for transporting recovered pressurized refrigerant must be approved by whom? <br />62. What should you wear when handling cylinders or recovering refrigerant? <br />63. When pressurizing a system with nitrogen, you should always charge through what? <br />64. When leak checking a system, never pressurize the system with what? <br />65. Never heat a refrigerant cylinder with what? <br />Providing outstanding, nationwide refrigerant recovery for the HVAC/Refrigeration/Demolition/Marine industries. <br />Local On -Site Service — An Independently Owned & Operated Franchise Company <br />