Understanding Corrosion in Water Pipelines: A Guide for Pipeline Designers


International System Of Units (SI)

Last updated: March 9, 2019

What Does International System Of Units (SI) Mean?

The International System of Units (or SI, from the French "Le Système international d'unités") is a globally recognized measurement system applicable in science, commerce, industry, medicine and everyday use.

It is composed of different units of measurement in a coherent system. The base units can be used to measure elements such as:

  • Time
  • Size
  • Weight
  • Volume
  • Energy
  • Temperature
  • Pressure
  • Quantity

The International System of Units is also known as the metric system.


Corrosionpedia Explains International System Of Units (SI)

The International System of Units is a scientific way to express quantities, magnitudes and other properties of various elements and materials as well as natural phenomena. This system of measurement is composed of seven base units, with several sub-units. It was previously known as meter-kilogram-second (MKS) system.

Nearly every country in the world uses the SI system. This universal standardization greatly simplifies matters dealing with science, business and industry because no additional calculation or translation is needed.

In corrosion inspection and prevention, numbers and measurement are crucial. Therefore, the SI system can be a very effective and efficient tool. For instance, learning how to properly measure temperature by referring to the SI system can be helpful in maintaining the correct operating temperatures or determining the proper level of temperature needed to hinder the damaging effects of corrosion. This idea can also be applied in other areas of measurement.



Metric System

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