Fly Ash Specific Resistance Meter

The resistance value of fly ash per unit area and unit thickness is often expressed by its resistivity, and the unit is Ω/cm. The resistance when each of the length and cross-sectional area is 1 unit is the specific resistance. That is, the resistance value when the length of the wire is 1 cm and the cross-sectional area is 1cm², expressed in ρ, and the unit is Ω·cm.

Dust is usually divided into low specific resistance ash (ρ<10⁴ Ω·cm), medium specific resistance ash (10⁴ Ω·cm<ρ<5×10¹⁰ ω·cm) and high specific resistance ash (ρ>5×10¹⁰ Ω·cm). Specific resistance is an important factor affecting the efficiency of ash collectors.

The laboratory determination method of coal ash specific resistance is the disc method.

Sample Requirements

• Please consult the technical teacher for details.

Application

• Measure the specific resistance characteristics of coal-fired fly ash, various industrial furnace dust and powdery raw materials

Instrument and Result Display

FAQ

Q. What are the factors affecting the specific resistance of fly ash?

A. The specific resistance of fly ash is one of the important factors affecting the dust collection performance of electrostatic precipitator. The specific resistance of fly ash is affected by chemical composition, temperature and particle size distribution.

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For more information about our fly ash specific resistance meter testing services, please contact us.