【Weekly Question】March 1–3, 2016: Participate for +2 wealth； +3 to +10 wealth for correct answers
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This post was last edited by chqd812 on 2016-3-1 at 10:52. In order to increase the popularity of the chemical analysis section, the \"One Question per Week\" activity is launched – this aims to foster active technical exchanges while also providing members with financial rewards. According to GB/T 6536 \"Methods for distillation determination of petroleum products\", when determining the distillation range of diesel, the time required for the residue in the flask to drop to 5 ml must be controlled within ( ). A. Not more than 5 minutes B. Not less than 5 minutes C. Not more than 4 minutes D. Not less than 4 minutes. The correct answer is A. Reply with your answer in the comments; you will receive 2 points as a reward for participating. Those who get all answers correct will receive an additional 3–10 points. Those who provide thorough analyses and explanations for the questions (or include detailed calculation processes) will receive extra rewards. If your answer is correct and your analysis is accurate, it will be marked as the best reply (or best assistance). Feel free to answer the questions.
A not more than 5 min~~~~~~~~~~~~~~~~
The correct answer to this question should be A.
According to GB/T 6536 \"Methods for the Distillation of Petroleum Products,\" when determining the distillation range of diesel, it is required that the time from when 5 ml remains in the flask until the end of the process be controlled within (A). A. Not more than 5 min B. Not less than 5 min C. Not more than 4 min D. Not less than 4 min