【Daily Question】Chemical Engineering Principles 555: Cleaning of Steam Sample Containers (May 12)

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The Chemical Engineering Theory section is launching the \"One Question per Day\" campaign starting today, aimed at helping everyone reinforce their basic knowledge in chemical engineering. Subsequent series will include those on \"Principles of Chemical Engineering\", \"Mass Transfer and Separation\", \"Thermodynamics in Chemical Engineering\", and \"Chemical Process Engineering\". We hope for your active support~~~ Answers to the \"One Question per Day\" questions can be viewed directly here; the topic will be closed after 1 day! ! To encourage continued participation from everyone this year! Participation earns 3 wealth points, with an additional 4 wealth points for correct answers~~~ Short answer: According to the standards, what should be used to clean the containers used for collecting steam samples after use? hydrochloric acid