Get help from Pros. Remove ads. Promote your CV or LinkedIn profile.
An instrument for determining the chemical analysis of flue gas.

Related Terms

COMPOUND

(1) chemically speaking, a distinct substance formed by the combination of two or more elements in definite proportions by weight and possessing physical and chemical properties different from those of the combining elements. (2) in petroleum processing, generally connotes fatty oils and similar materials foreign to petroleum added to lubricants to impart special properties.

AMMETER

An instrument for measuring the magnitude of electric current flow.

HYDROMETER

An instrument for determining either the specific gravity of a liquid or the API gravity.

CORROSION INHIBITOR

Additive for protecting lubricated metal surfaces against chemical attack by water or other contaminants. There are several types of corrosion inhibitors. Polar compounds wet the metal surface preferentially, protecting it with a film of oil. Other compounds may absorb water by incorporating it in a water-in-oil emulsion so that only the oil touches the metal surface. Another type of corrosion inhibitor combines chemically with the metal to present a non- reactive surface.

HUNTING

Fluctuation about a mid-point due to instability, as oscillations of the needle of an instrument about the zero point.

False brinelling

False brinelling of needle roller bearings is actually a fretting corrosion of the surface since the rollers are the I.D. of the bearing. Although its appearance is similar to that of brinelling, false brinelling is characterized by attrition of the steel, and the load on the bearing is less than that required to produce the resulting impression. It is the result of a combination of mechanical and chemical action that is not completely understood, and occurs when a small relative motion or vibration is accompanied by some loading, in the presence of oxygen.

ANEMOMETER

An instrument for measuring the velocity of a fluid.

GAGE

An instrument or device for measuring, indicating or comparing a physical characteristic.

HYDROLYTIC STABILITY

Ability of additives and certain synthetic lubricants to resist chemical decomposition (hydrolysis) in the presence of water.

CATALYST

A substance which speeds a chemical action without undergoing a chemical change itself during the process. Now used in catalytic converters to control amount of unburned hydrocarbons and CO in automobile exhaust.
Get help from Pros. Remove ads. Promote your CV or LinkedIn profile.

Related questions

MarineProHelp 2018 - 2022