Flash point of atmospheric distillation residue is determined by ______________ apparatus?
Correct answer: C. Cleveland (open cup type)
- A. Pensky-Martens (closed cup type)
- B. Abel
- C. Cleveland (open cup type)
- D. None of these
Explanation
Atmospheric distillation residue is a relatively heavy product with a high flash point, so it is tested in the Cleveland open-cup apparatus. The Pensky-Martens and Abel methods are generally used for lower-flash-point products.
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