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| HEPA Leak Rate Testing Study For PAO4 In Nuclear Ventilation System |
| ZHANG Ji-rong, HOU Jian-rong, LI Yong-guo, SHI Ying-xia, ZHANG Qun, CHEN Jian-li, LIANG Fei |
| China Institute For Radiation Protection, Taiyuan 030006 China |
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Abstract Objective To overcoming the pungent smell when DOP generates aerosol and the risk of potential carcinogen for HEPA leak rate testing in nuclear ventilation system. Methods The closed cup method is used to measure the flash point about PAO4 and DOP. Mixing uniformity testing and in-site leak rate testing are done according to the EJ/T 791standard. Results The flash point of PAO4 is higher than the flash point of DOP. It is stable when PAO4 generates aerosol. The leak rate testing result is coincident. Conclusion PAO4 is deserved to popularize for HEPA leak rate testing in nuclear ventilation system.
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Received: 15 July 2014
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