What Types of Moisture Analyzers Are There?

Main types: Karl Fischer, halogen, far-infrared, gas dew point, and specialized meters—simple, sensitive, reproducible, with continuous measurement and automatic display.

1. Karl Fischer Method

The Karl Fischer method (KF method) has two variants: titration (volumetric) and coulometry (electrolytic). Among the chemical methods for determining moisture, it is the most specific and accurate for water. Though a classic method, recent improvements have raised its accuracy and widened its range, and it is listed as the standard method for moisture determination in many substances. It rapidly measures moisture in liquids, solids, and gases and is the industry-standard analytical method worldwide, widely used in petroleum, chemicals, electric power, pharmaceuticals, pesticides, universities, and research.

2、Loss-on-Drying Moisture Analyzer

Thermogravimetric instruments are simple, fast, and accurate—widely used for analysis, incoming inspection, and process control in chemical, pharmaceutical, food, tobacco, and grain industries. Loss-on-drying types divide into infrared, halogen, and microwave

3. Gas dew point analyzers are simple and satisfactory for trace moisture in gases, though readily condensing gases may interfere at high concentrations.