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How can use the word of mean in a sentence?
The girls were mean to the new arrivals. They did not mean to be hurtful. The mean of the numbers was not what they had expected.
What is a sentence using the word 'do not mean'?
I do not mean all people, but some people act lazy.I do not mean to bother you but I need your help.
What is the present and future tense of the word mean?
Present tense: I/you/we/they mean. He/she/it means. The present participle is meaning. Future tense: Will mean.
'What on earth he asked do you mean' punctuate?
"What on Earth," he asked, "do you mean?"
What does incarcreated mean and how do you pronounce it?
What does incarcreated mean
What is a afff fire extinguisher?
AFFF is Aqueous Film Forming Foam
What do the initials AFFF stand for?
AFFF stands for Aqueous Film-Forming Foam. It is used by fire fighters for the suppression of a fire where fuel is involved. It does this by coating the fuel and preventing oxygen enabling combustion.
Why is afff foam good for fire fighting?
I wouldn't agree that afff is good for fire fighting. Perhaps at one time it was, before there were more cost effective and environmentally friendly options on the market. There are now wetting agents such as Novacool UEF (Universal Extinguishing Foam) that are a much better option. This foam, which is UL listed and certified under NFPA 18, is used at 1/6 to 1/12 of the concentration of AFFF and is bio-degradable. AFFF is most effective in a contained pool of Class B flammables but is not effective on 3 dimensional fires where Novacool UEF is. AFFF is outdated technology and needs to be replaced by modern day technology.
What is the flow rate setting of AFFF nozzles located in Engine Rooms?
The flow rate setting of AFFF (Aqueous Film Forming Foam) nozzles located in Engine Rooms typically depends on the specific system and fire protection requirements. It can range from 60 to 125 gallons per minute (GPM), but it is essential to consult the manufacturer's guidelines or the system design to determine the exact flow rate setting for the AFFF nozzles in Engine Rooms.
What is the suitable fire protection system to be used in a diesel engine generator room?
AFFF- Aqueous Film Forming Foam
What does AFFF stand for in relation to fire fighting?
AFFF stands for Aqueous Film-Forming Foam, which is a type of fire-fighting foam used to extinguish flammable liquid fires. It works by creating a barrier between the fuel and the fire, suppressing vapors and cooling the fire's heat. AFFF is commonly used in aviation and industrial fire-fighting due to its effectiveness in combating hydrocarbon fires. However, concerns over its environmental impact, particularly regarding per- and polyfluoroalkyl substances (PFAS), have led to increased scrutiny and regulation.
What is AFFF made out of?
Aqueous film-forming foam (AFFF) is typically made from a mixture of fluorosurfactants, hydrocarbon surfactants, solvents, and water. These ingredients work together to create a foam that is effective at extinguishing flammable liquid fires by forming a blanket that suppresses the release of flammable vapors and cools the fuel surface.
How can AFFF stops aviation fire?
Because the Aqueous Film Forming Foam stops oxygen from reaching the fuel. Therefore removes the oxygen element from the fire triangle so a fire is not able to form.
What kind of fire extinguisher is required in diesel fire?
aqueous film forming foam (AFFF), if you have one, although CO2 or dry-chemical fire extinguishers are also rated for combustible liquids, such as diesel.
What types of fire extinguishing equipment used for different categories of fire?
Using the American system for classification, here's the general type of extinguisher used:A (combustible materials) - water, AFFF (aqueous fire fighting film), dry chemicalB (flammable liquid or gas) - NEVER water. Dry chemical, AFFF, Halon, CO2C (electrical fires) - NEVER water. Dry chemical, Halon, CO2D (flammable metals) - NEVER water. Dry POWDER (not dry chemical) such as sodium chloride granules, graphite or copper.
Where is a labs fire extinguisher located?
Laboratory fire extinguishers shoud be located just inside each exterior door. To be as safe as possible they should probably be of the type AR-AFFF, that is Alcohol Resistant Aqueous Film Forming Foam. While these foam extinguishers are messy they extinguish the fire AND THEN they provide reflash protection. Other extinguishing agents will extinguish the fire but if all the elements of a fire are still there, oxygen fuel and temperature, then the fire can reignite. AR-AFFF prevents that and prevents the foam from degrading due to solvents which tend to be present in Laboratories.
Can you use a foam fire extinguisher on electrical fires?
Foam fire extinguishers are used mainly for flammable liquid fires and are mostly used by professionals and in commercial and industrial settings. These extinguishers are charged with anther AFFF, FFFP, or AR-AFFF, however, these class of extinguishers are only rated class A & B fires and are hazardous to the environment, humans and animals in addition to being very corrosive.
