0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the flame spread rating for glass?
Class 0 in uk
How do flame retardants prevent fires?
Flame retardants reduce the spread of fire on a material by raising the temperature at which it will burn. There are several physical chemistry approaches to reducing flame spread, but see the wikipedia article for more details.
Why is vertical flame spread more rapid than horizontal flame spread?
The heat from a fire in the vertical spread is traveling upward and preheating the fuel about to be burned; whereas in horizontal spread, most of the convective heat is escaping into the atmosphere. Only the radiant heat is warming the material to the side.
What is class 1 flame spread?
The test method used to assess the effectiveness of flame retardant products is BS476, Part 7 1987 and is used to classify a material in terms of "Spread of Flame". Class 1 is a low surface spread of flame, the highest achievable with the test method and is a performance normally required for walls and ceilings. In high risk areas such as escape routes Class 0, limited combustibility, is required. To comply materials must have a Class 1 Surface Spread of Flame and a low fire propagation to BS 476 Part 6 1989. Intumescent coatings are used to prevent the penetration of fire through a structure for a specific period in accordance with BS 476 pARTS 20-23 1987. Such coatings are given classifications with specific periods of time achievements, such as "30 minutes".
How cold can a Bunsen burner flame be?
a Bunsen burner flame can be 20* to 2000*
Function of flame spreader?
to spread flame
Is a flame spread index of 20 better than 26?
According to the State of Lousiana, pine wood is greater than 70 to 100 and inorganic particle board is 15 -20, therefore lower numbers are better. Please note that 20 seems to me to be close to 26, looking at various materials the difference isn't great. But 20 is more flame spread resistant than 26. sfm.dps.louisiana.gov/doc_flamespread.html
What is the difference between flame spread index and flame spread rating?
CheckFlame Spread Index. The definition from NFPA 220 is ...www.nfpa.org/assets/files/PDF/ROP/59A-A2005-ROC.pdf
What is the flame spread rating for glass?
Class 0 in uk
How do flame retardants prevent fires?
Flame retardants reduce the spread of fire on a material by raising the temperature at which it will burn. There are several physical chemistry approaches to reducing flame spread, but see the wikipedia article for more details.
What has the author Paul V Ferkul written?
Paul V. Ferkul has written: 'A model of concurrent flow flame spread over a thin solid fuel' -- subject(s): Flame spread
Why is vertical flame spread more rapid than horizontal flame spread?
The heat from a fire in the vertical spread is traveling upward and preheating the fuel about to be burned; whereas in horizontal spread, most of the convective heat is escaping into the atmosphere. Only the radiant heat is warming the material to the side.
What is class 1 flame spread?
The test method used to assess the effectiveness of flame retardant products is BS476, Part 7 1987 and is used to classify a material in terms of "Spread of Flame". Class 1 is a low surface spread of flame, the highest achievable with the test method and is a performance normally required for walls and ceilings. In high risk areas such as escape routes Class 0, limited combustibility, is required. To comply materials must have a Class 1 Surface Spread of Flame and a low fire propagation to BS 476 Part 6 1989. Intumescent coatings are used to prevent the penetration of fire through a structure for a specific period in accordance with BS 476 pARTS 20-23 1987. Such coatings are given classifications with specific periods of time achievements, such as "30 minutes".
How cold can a Bunsen burner flame be?
a Bunsen burner flame can be 20* to 2000*
What has the author James G Quintiere written?
James G. Quintiere has written: 'Principles of fire behavior' -- subject(s): Fires, Flame spread, Fire prevention 'Significant parameters for predicting flame spread' -- subject(s): Mathematical models, Flame spread 'Fourth CIB W14 Workshop in Fire Modeling, Gaithersburg, USA, February, 1990'
How did a paint made from powederd aluminum contribute to the disaster?
This paint was supposedly ultra-flammable and caused the flame to spread super fast. Mythbusters did a segment on this, and they found they couldn't get the flame to spread super fast on this kind of paint.
What is the voltage of a thermocouple in a pilot flame?
It should be around 20 millivolts while operating in a flame.
