Methods of testing for rating ducted air terminal units 评定管道式空气终端装置的测试方法
2.
Non - ducted air conditioners and heat pumps - testing and rating for performance 非管道式空调和热泵.性能试验和评定
3.
Ducted air - conditioners and air - to - air heat pumps - testing and rating for performance 管道通风空调和空气对空气热泵.性能的试验和额定值
4.
2 3 . installation and maintenance of gas - fired ducted air heaters of rated input not exceeding 70 kw net 2nd and 3rd family gases - specification 额定输入净值不超过70kw的燃气管道式空气加热器的安装和维修
