Recovery & Recycling第 223 / 240 题
To avoid cross-contamination when switching from recovering one refrigerant to another, a technician should:
a.Use the same cylinder for both
b.Skip identifying the second refrigerant
c.Evacuate the recovery equipment and use a dedicated cylinder for each refrigerant
d.Mix them in a single drum
解析
Between refrigerants, evacuate the recovery machine and hoses and use a separate, dedicated cylinder for each refrigerant to prevent cross-contamination. Reusing a cylinder or skipping identification can create a mixed batch that cannot be reclaimed. Clean separation preserves the refrigerant's value.
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