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The point that a colour change occurs during titration, i.e. water testing blue changes to clear.

Related Terms

A.S.T.M.

American Society for Testing Materials - a society for developing standards for materials and test methods.

ASTM

American Society for Testing Materials.

ECHO BOX

A resonant cavity, energized by part of the transmitted pulse of a radar set, which produces an artificial target signal for tuning or testing the overall performance of a radar set. Also called PHANTOM TARGET.

VACUUM PUMP

Special high efficiency device used for creating high vacuums for testing or drying purposes.

C-SCAN

In ultrasonic testing a means of data presentation to show a plan view of the material, and of any discontinuities therein.

GAS-FREE CERTIFICATE

A gas-free certificate is most often issued by an independent chemist to show that a tank has been tested, using approved testing instruments, and is certified to contain 21 per cent oxygen by volume and sufficiently free from toxic, chemical and hydrocarbon gases for a specified purpose such as tank entry and hot work. (In particular circumstances, such a certificate may be issued when a tank has been suitably inerted and is considered safe for surrounding hot work.)

CSA B-51 CODE

Canadian Standards Association Code for the Construction and Inspection of Boilers and Pressure Vessels. Its purpose is to provide for the safe design, construction, installation, operation, inspection, testing and repair of boilers, pressure vessels, and related equipment; and second, to promote uniform requirements among the Canadian jurisdictions.

FLASH POINT

The lowest temperature at which a liquid gives off sufficient vapor to form a flammable mixture with air near the surface of the liquid. The flashpoint temperature is determined by laboratory testing in a prescribed apparatus.

Establishes the danger point when transferring, pumping, and firing procedures are concerned.

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.

DEMULSIBILITY

The ability of a fluid that is insoluble in water to separate from water with which it may be mixed in the form of an emulsion.
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