Should 0# diesel be evaluated according to the fire hazard classification for Class B fires?
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According to the specifications for diesel, the flash point of 0# diesel is above 55 degrees. But diesel is not a hazardous chemical. Is the specific evaluation process currently following the requirements for Category B when it comes to fire separation distances? It doesn’t matter much for gas stations, as long as the spacing between them complies with the relevant standards for gas stations. For other manufacturing enterprises that use diesel, the building codes apply, and there is a difference in the required spacing between Class B and Class C facilities
The 2007, Revision 55 of the Recommendations on the Transport of Dangerous Goods classifies diesel as a flammable liquid of Class 3. Subsection 2.3.1.2 defines flammable liquids as liquids or liquid mixtures that release flammable vapors at a temperature commonly referred to as the flash point (not higher than 60°C for the closed-cup test, or not higher than 65.6°C for the open-cup test), or as liquids containing solids in a solution or suspension (such as paints, varnishes, sprays, etc., but excluding substances that are classified in other categories due to their hazardous properties). Additionally, according to **Standard GB 252—2000 ‘Revised Version of Diesel Standards’, the flash point (closed cup) of light diesel must be no lower than 55. Therefore, according to the \"Code for Fire Protection Design of Petrochemical Enterprises\", its fire hazard level should be classified as Class B; whereas in accordance with GB50016—2006 \"Code for Fire Protection Design of Buildings\", its fire hazard level should be classified as Class B as well. This post was last edited by lyhh9024 on 2009-3-26 20:17.]
The classification of a substance’s fire hazard has nothing to do with whether it is a hazardous chemical! The classification is based on the \"Code for Fire Protection Design of Building Structures\" and the \"Code for Fire Protection Design of Petrochemical Enterprises\". The flash point of diesel is greater than 55°C; if it is less than 60°C, it is still classified as Category B. This post was last edited by Hibiscus on 2009-3-27 at 12:30.]
According to the light diesel standards, diesel with a flash point of 38°C is not considered qualified
I’ve never heard of, nor seen, diesel with a flash point of 38°C.
Diesel flash point: Different grades have different flash points. However, the higher the number, the higher the flash point
The flash point of 0# diesel is 55°C, but it should be subject to safety assessment as Category B.
Analysis can be carried out as Category B or Category C, depending on the properties (flash point) of the diesel used
There must be standard specifications to determine whether diesel belongs to category B or category C! According to the Code for Fire Protection Design of Oil and Gas Engineering GB50183-2004, light diesel with a flash point of less than 60°C and greater than or equal to 55°C can be considered to belong to Class C in terms of fire hazard, provided that the operating temperature of the storage and transportation facilities does not exceed 40°C. ” **There are many current codes in place; one cannot rely solely on building codes or stone-related regulations!
Thank you, Engineer Wu, haha! Now, many evaluations simply classify things as Category B, but the problem is that they are designed based on Category C, or this aspect is simply ignored