Regarding the fire hazard classification in the fire protection code GB50160
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According to Section 3.0.2 of GB50160, Class C-B liquids with an operating temperature higher than their boiling point shall be regarded as Class A-B liquids. Is this boiling point at the operating pressure or under standard conditions?
At standard conditions, the boiling point of a substance is as follows: standard conditions generally refer to 0 degrees Celsius and 1 standard atmosphere
Bro, look carefully: it’s above the flash point, not the boiling point, and it has nothing to do with the operating pressure
You didn’t read Subpoint 3 of Article 3.0.2 carefully. . .
Here it refers to the normal boiling point, that is, the boiling point at standard atmospheric pressure
Haha, really, I didn’t look closely enough; I agree with you
Thank you, I personally think the same. I wonder if you have come across such things before, and if you have discussed this issue with experts?
Of course it’s the standard boiling point – is it still a liquid at the operating pressure?
For example, the material at the bottom of the tower is in a saturated state; it’s in the liquid phase
The fire hazard of a liquid is determined based on its flash point, not its boiling point.