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Temperature Scales

COURSE NO: M01-024
COURSE PROVIDER: Robert Steelhammer, P.E.
Temperature Scales
Course Highlights

This online engineering PDH course provides information on the development of different temperature scales throughout history.


When we think of temperature scales, we think either Fahrenheit or Centigrade and not much farther than that. In fact, it is far more complicated than that and there is a history behind how temperature is defined. Many different scales have existed throughout history until the development of the International Temperature Scale of 1990 (ITS-90). Not all temperature scales are the same, because they are not defined in the same way. There is more confusion on the usage and origin of temperature units more often than any other variable.


This 3 PDH online course is applicable to mechanical engineers who are interested in gaining knowledge concerning temperature scales.
Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Familiarizing with ancient history of temperature measurement
  • Familiarizing with the effect of the introduction of thermodynamic theory
  • Learning about the development of temperature scales in the Middle Ages
  • Understanding the definition of ITS-90 temperature scale
  • Exploring the various temperature scales
Course Document
In this professional engineering CEU course, you need to review the course document titled, "Temperature Scales”, which is prepared by Robert Steelhammer, P.E.
To view, print and study the course document, please click on the following link(s):
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of ten (10) questions to earn 1 PDH credit. The quiz will be based on the entire document.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: