The petroleum industry often characterizes crude oils according to their geographical source, e.g., Alaska North Slope Crude. Oils from different geographical areas have their own unique properties; they can vary in consistency from a light volatile fluid to a semi-solid. Classification of crude oil types by geographical source is generally not a useful classification scheme for response personnel, because general toxicity, physical state, and changes that occur with time and weathering are not primary considerations. Rather, the classification scheme provided below is more useful in a response scenario. Class A: Light, Volatile Oils. These oils are highly fluid, often clear, spread rapidly on solid or water surfaces, have a strong odor, a high evaporation rate, and are usually flammable. They penetrate porous surfaces such as dirt and sand, and may be persistent in such a matrix. They do not tend to adhere to surfaces; flushing with water generally removes them. Class A oils may be highly toxic to humans, fish, and other biota. Most refined products and many of the highest quality light crudes can be included in this class. Class B: Non-Sticky Oils.These oils have a waxy or oily feel. Class B oils are less toxic and adhere more firmly to surfaces than Class A oils, although they can be removed from surfaces by vigorous flushing. As temperatures rise, their tendency to penetrate porous substrates increases and they can be persistent. Evaporation of volatiles may lead to a Class C or D residue. Medium to heavy paraffin-based oils fall into this class. Class C: Heavy, Sticky Oils. Class C oils are characteristically viscous, sticky or tarry, and brown or black. Flushing with water will not readily remove this material from surfaces, but the oil does not readily penetrate porous surfaces. The density of Class C oils may be near that of water and they often sink. Weathering or evaporation of volatiles may produce solid or tarry Class D oil. Toxicity is low, but wildlife can be smothered or drowned when contaminated. This class includes residual fuel oils and medium to heavy crudes. Class D: Nonfluid Oils. Class D oils are relatively non-toxic, do not penetrate porous substrates, and are usually black or dark brown in color. When heated, Class D oils may melt and coat surfaces that become very difficult to clean. Residual oils, heavy crude oils, some high paraffin oils, and some weathered oils fall into this class. These classifications are dynamic for spilled oils ... weather conditions and water temperature greatly influence the behavior of oil and refined petroleum products in the environment. For example, as volatiles evaporate from a Class B oil, it may become a Class C oil. If a significant temperature drop occurs (e.g., at night), a Class C oil may solidify and resemble a Class D oil. Upon warming, the Class D oil may revert back to a Class C oil.
There are various types of lifestyles that people lead, such as minimalism, veganism, fitness-focused, luxury, nomadic, urban, rural, and sustainable living, among many others. These lifestyles can reflect personal values, beliefs, preferences, and choices in areas like diet, housing, travel, consumption, and social interactions.
in the worl there are 3733 type of Spiders
check this link. because there many types of thapa. U will get some info from this http://en.wikipedia.org/wiki/Thapa
Two types of anthropology are cultural anthropology, which explores diverse cultural practices and beliefs of human societies, and physical (biological) anthropology, which studies human biology, evolution, and primates.
There are about 574 federally recognized Indian tribes in the United States, each with unique cultures, languages, and traditions. These tribes are organized into different groups based on their geographic location, historical background, and language family.
there are 5 types of food oil.
there are 5 types of food oil.
Well for one thing there are 2 types of oil 1 gasoline oil and 2 cooking oil
Body oil, fish oil, motor oil, flak oil, sesame oil, vitamin A/B/C/D/E Oils! So many! Find some more online too.
Potato chips are fried in many different types of oil, including palm, sunflower, cottonseed, etc
The three main types of fossil fuels are coal, oil, and natural gas. Coal is a solid fossil fuel formed from plant material, while oil and natural gas are liquids and gases formed from decaying marine organisms. All three types of fossil fuels are non-renewable resources.
As there are many types of oil, and because each type of oil contains a number of different compounds within it, different oils burn at different temperatures.
This depends on the type of oil. Few types of oil sink in water, while most types of oil float on top of the water.
Compare different types of oil including synthetics?
Varsol, oil thinner, turps, lacquer thinner, xylene, and many others.
Varsol, oil thinner, turps, lacquer thinner, xylene, and many others.
There are several food grade oil types. A few of them are Mobil, CrC, and Hobart.