Tracer measurement

With tracer gas measurement (also known as trace gas measurement or indicator gas measurement), the room air or an air stream is enriched with a small amount of tracer gas. As a result of the dilution of this gas , the effective volume flow in the room or a leakage volume flow can be calculated by measuring the drop in concentration.

The diverse application possibilities of this measurement method allow, among other things, the measurement of the efficiency of a ventilation system. The indicator gas method for determining the air change in buildings is described in detail in DIN EN ISO 12569. Thanks to highly sensitive gas analyzers, only the smallest amounts of gas that have no physiological effect on humans are used as tracer gases today.

Examples of the application of tracer gas measurement technology

• Volume flow measurement in air ducts
• Measurement of building tightness
• Leak measurement in technical systems
• Measurement of the air exchange rate according to DIN ISO EN 12569
• Measurement of short circuits in decentralized devices
• Measurement of the volume flow in the room
• Determination of the operating characteristic of mixed air dampers
• Check of volume flow controllers when installed
• Pollution gas transmission / effectiveness of extraction systems
• Measurement of the smoke tightness of fire compartments / measurement of smoke spread
• Measurement of the proportion of exhaust air entering the building again
• Analysis of the spread of pollutants in the building
• Leak tightness of flaps
• Leak tightness of storage facilities for dangerous goods
• Testing the effectiveness of emergency ventilation systems
• Checking the spread of germs in hospitals
• Determination of the proportion of exhaust air in the supply air
• Leak detection of pipelines (district heating, gas lines ...)