Gasket is a mechanical seal, which is used to prevent fluid, or gas leaks by providing a barrier between two mating surfaces. Gaskets save money by allowing less precise mating surfaces on machine parts, which can use a gasket to fill irregularities. Gaskets are commonly produced by cutting from sheet materials, such as gasket paper, rubber, silicone, metal, felt, fiberglass, or a plastic polymer. It is usually desirable that the gasket be made from a compressible or slightly compressible material such that it tightly fills the space it is designed for, including any slight irregularities. One of the more desirable properties of an effective gasket in industrial applications for compressed fiber gasket material is the ability to withstand high compressive loads.

Gasoline is a petroleum-derived liquid mixture consisting of hydrocarbons and enhanced with benzene or iso-octane to increase octane ratings, primarily used as fuel in internal combustion engines. Gasoline is produced in oil refineries. The bulk of a typical gasoline consists of hydrocarbons with between 5 and 12 carbon atoms per molecule. These are usec in kitchen ranges and for lighting. Gasoline is a mixture of paraffins (alkanes), naphthenes (cycloalkanes), aromatics and olefins (alkenes). Gasoline also contain some other organic compounds such as organic ethers plus small levels of contaminants in particular sulfur compounds such as disulfides and thiophenes.

Gasoline analyzer is an on-line process analyzer for accurate multi-component gasoline analysis. Utilizing mid-infrared spectroscopic analysis to differentiate and quantify individual components in a gasoline sample, this analyzer is ready to measure right out of the crate. It minimizes need for the special calibrations and correlations common in competitive technologies and instrumentation.

Gasoline engine is an internal combustion engine. It is divided into two general classes such as two-cycle and four-cycle engines. A cycle represents one stroke of the piston or one-half revolution of the crank-shaft. A complete revolution represents two cycles. In a two-cycle engine, the power impulse occurs at each revolution. In a four-cycle engine, the power impulse occurs at every revolution. Gasoline engine is used in power-plant applications.