Chapter 8. Pressure
8.1. Introduction
Pressure is one of the most important and widely measured quantities in industry. Accurate and traceable pressure measurement is important in many sectors, such as health, meteorology, transport, power. A variety of instruments are used for measurement of pressure and the basic operating principles of some of these instruments together with guidelines for their calibration are given in this chapter.
8.2. SI and Other Units
The SI unit for measurement of pressure is the newton (N) per square meter (m2), having the special name pascal (Pa). The pascal is comparatively small in magnitude and therefore for most practical measurements decimal multiples kilopascal, megapascal, and gigapascal are used. The other ...
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