Recovery & Recycling第 216 / 240 题
The required evacuation level for recovery depends on:
a.Only the technician's certification type
b.Only the ambient temperature
c.The color of the recovery cylinder
d.The appliance type and the manufacture date of the recovery equipment
解析
The recovery evacuation table sets required levels based on the appliance type and size and whether the recovery equipment was made before or after November 15, 1993. For example, low-pressure appliances require 25 mm Hg absolute, while a large HCFC-22 system requires 10 in Hg with newer equipment. Certification type and cylinder color do not set the vacuum level.
法律依据: 40 CFR §82.156免费刷完整 240 道题库 — 无需注册。
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