It is harder to start a combustible liquid buring than to start a flammable liquid burning. In most cases, however, neither type of liquid is "unstable." Both are simply liquids that can burn if ignited.
Being "unstable" means that it might detonate or explode.
In common usage flammable liquids are the same as combustible liquids in terms of their ability to catch fire. However, in the technical usage of hazardous materials transportation and of fire prevention, a combustible liquid has a higher flash point than a flammable liquid and is therefore less easily ignited. So, yes, flammable liquids ignite more easily than do combustible liquids.
In common usage flammable liquids are the same as combustible liquids in terms of their ability to catch fire. However, in the technical usage of hazardous materials transportation and of fire prevention, a combustible liquid has a higher flash point than a flammable liquid and is therefore less easily ignited. So, yes, flammable liquids ignite more easily than do combustible liquids.
It is harder to start a combustible liquid buring than to start a flammable liquid burning. In most cases, however, neither type of liquid is "unstable." Both are simply liquids that can burn if ignited. Being "unstable" means that it might detonate or explode.
In common usage flammable liquids are the same as combustible liquids in terms of their ability to catch fire. However, in the technical usage of hazardous materials transportation and of fire prevention, a combustible liquid has a higher flash point than a flammable liquid and is therefore less easily ignited. So, yes, flammable liquids ignite more easily than do combustible liquids.
Combustible fabrics can catch fire and combust, unlike the latter.
An incombustible gas is one that does not burn or explode.(Incombustible means something that cannot be burnt.)Some good examples of incombustible gases arenitrogen (which is fortunate, because 78% of the air is nitrogen, and if nitrogen was combustible, the air would explode!)carbon dioxideargon
A flammable material has a lower flash point (100F or below) while a combustible material has a flash point of 100F or HIGHER. In other words, it's a lot easier for a flammable material to catch fire than a combustible one because of the minimal amount of energy (heat) required to get it going versus the higher requirement of a combustible material.
Organic compounds can be both flammable and combustible. Flammable materials ignite easily and burn rapidly at low temperatures, while combustible materials require higher temperatures to ignite and burn. The flammability and combustibility of organic compounds depend on their chemical structure, such as the presence of carbon-carbon or carbon-hydrogen bonds that can easily break and react with oxygen in the air.
Three-dimensional Class B Fires. A three-dimensional Class B fire involves Class B materials in motion such as pouring, running or dripping flammable liquids and generally includes vertical as well as one or more horizontal surfaces. Fires of this nature are considered to be a special hazard. Class B fires are those involving flammable (gasoline, alcohol) and combustible (diesel, oil, tar, grease) liquids.
Flammable vs. CombustibleThe words flammable and combustible have been around a long time and are constantly being interchanged with each other which is confusing.Combustible means that something will burn.Flammable also means that, BUT... its meaning goes beyond that. Flammable does mean something will burn, but tremendously faster and much more violently.Therefore, spray paint, before it dries is highly flammable.On the other hand, after spray paint has dried and cured, it would only be considered combustible, not flammable.
Class 3, Flammable liquid, has a flash point of not more than 60 degrees C.
Enamel paint that has dried on a surface is no more or less flammable than other top coats. Many of the chemicals in enamel paint are combustible under the right conditions. It is advisable to store unused enamel paint, and many other household chemicals, in a safe environment.