【Daily Question No. 097】October 12, 2017

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【Daily Question No. 097】October 12, 2017: Before putting the pipeline system at the receiving station into operation, it is necessary to purge and replace it thoroughly, and ensure that the ( ) parameters are within acceptable limits. A. Oxygen content and dew point B. Oxygen content and impurity content C. Refrigerant content and flammable gas content D. Nitrogen content and flammable gas content. The answers to the daily questions change; today’s answers will be shown in subsequent questions. For management purposes, if you need to view content from a few days ago, please access it through the summary post below. Summary thread for Q&A questions in 2017 (updates have begun): http://bbs.hcbbs.com/thread-1657793-1-1.html Summary thread for daily questions in 2017 (updates have begun): http://bbs.hcbbs.com/thread-1657794-1-1.html Summary thread for Q&A questions in 2016 (updates completed): http://bbs.hcbbs.com/thread-1597792-1-1.html Petrochemical sector – “Creative Ideas for Energy Saving” campaign (the second phase is currently in progress): http://bbs.hcbbs.com/thread-1666758-1-1.html (Source: Haichuan Chemical Industry Forum)