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A stand for the determination of leakage in gland seals and the determination whether the seals are in conformity with the VDI 2440 requirements and TA-Luft air pollution control regulations. The laboratory issues certificates of conformity with the TA Luft regulations. The leakage measurement is made in temperatures up to 500°C and after performing an assumed number of up/down mandrel cycles. Also longitudinal stress on the packing and the pressure of the medium (helium) are preset values in the test. Continuous measurement of the leakage is performed by vacuum method using a helium spectrometer.