Fire hazard category of naphthalene
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According to the building codes, the fire hazard category of naphthalene is classified as Category B for both \"naphthalene refining facilities\" and areas where naphthalene is stored. The questions are as follows: What factors are taken into account for classifying this as category B? The flash point of liquid naphthalene is 78.9°C, and its explosion limit in terms of vapor percentage is: 0.9–5.9 ； Lower dust limit: 28–38 mg/m3; based on the flash point, it should belong to Category C ； Based on the explosion threshold, it should be classified as Category A; please have those familiar with the matter discuss this
Should this question be asked on the relevant forums of the fire department?
Naphthalene is a flammable solid that is volatile. In the fire hazard classification outlined in fire safety design codes, it is classified as a flammable hazardous solid in Category B; it is not categorized based solely on its flash point or explosion limits. Just remember that
Do not place solids on liquids or even gases in order to mix them together – there are things like flash points and explosion limits to consider. . Take a look at the classification of solids in building codes. .
This issue has been partially resolved, but your feedback is still welcome. It would be even better if it could be clarified whether it refers to item 4 or item 6 in Category B of production
1. From what perspective are standards such as flash point and explosion limits applied to solids? 2. What are the concepts of flash point and explosion limit? Naphthalene has a melting point of 80.5°C and a boiling point of 217.9°C; why then use such classification criteria for solid naphthalene, which already needs to melt and vaporize?
Please stop replying; it has already been said that the problem is resolved… It is suggested that you read the previous replies carefully before attempting to answer questions