After finishing this lesson, you will be able to correctly identify analytical variables and explain the processes for measuring them. You will be able to explain analysis and describe the basic operation of direct and indirect analysis measurement devices. • Identify the units of measurement for analytical variables • Describe basic operation of analytical measurement devices • Recognize the general purpose of analytical measurement • Define terms associated with analytical: – Measurement. – Analyzer – Concentration – Conductivity – Moisture – pH – Humidity – Dew point