Core (Universal)第 38 / 240 题
Which of the following releases of refrigerant is NOT considered illegal venting under Section 608?
a.Opening a system to atmosphere before recovering the charge
b.A small release of nitrogen or CO2 used as a holding charge or for leak detection
c.Blowing R-22 out of a line set to clean it
d.Discharging R-134a to test a gauge manifold
解析
Releasing a holding or trace gas such as nitrogen or CO2 that is not a regulated refrigerant is not considered illegal venting, which is why these gases are used for pressure testing and leak detection. Opening a system before recovery, blowing out refrigerant, or discharging R-134a are all prohibited releases of regulated refrigerant. The rule targets ozone-depleting and substitute refrigerants, not inert test gases.
法律依据: 40 CFR §82.154免费刷完整 240 道题库 — 无需注册。
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