Low-volume sampler

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A low-volume sampler (LVS) is a measuring device for recording airborne dust and gaseous chemical compounds. It is used for measurements both indoors and outdoors. The previously established term small filter device should no longer be used.

Structure and procedure

A low-volume sampler essentially consists of a volume flow meter and a vacuum pump for volume flows between 2.3 m 3 / h and 3 m 3 / h. The vacuum pump should preferably be a rotary vane pump . A sampling system is not part of the low-volume sampler. This can be selected depending on the measurement task.

When sampling particles, they are deposited on a filter and the filter is then weighed if the deposited particle mass is of interest. If only dust constituents are to be considered, weighing is not necessary.

Special sampling heads according to DIN EN 12341 are used to measure the PM 10 and PM 2.5 fractions. It must be ensured that a constant volume flow can be set.

The advantage of the low-volume sampler is its low weight and low noise level compared to other actively collecting measuring devices. This means that the device is also suitable for mobile use. The metrological detection of polychlorinated biphenyls in indoor air can be done using a low-volume sampler.

literature

  • VDI 2463 Part 7: 2014-05 Measurement of particles; Detection of airborne dust and gaseous chemical compounds in outdoor and indoor air; Active sampling using a low-volume sampler (LVS) (Particulate matter measurement; Determination of suspended particulate matter and gaseous chemical compounds in ambient air and indoor air; Active sampling via low-volume sampler (LVS)). Beuth Verlag, Berlin. ( Summary and table of contents online )

Individual evidence

  1. ↑ VDI 2463 sheet 7: 2014-05 Measurement of particles; Detection of airborne dust and gaseous chemical compounds in outdoor and indoor air; Active sampling using a low-volume sampler (LVS) (Particulate matter measurement; Determination of suspended particulate matter and gaseous chemical compounds in ambient air and indoor air; Active sampling via low-volume sampler (LVS)). Beuth Verlag, Berlin. P. 3.
  2. ^ A b c Franz Joseph Dreyhaupt (Ed.): VDI-Lexikon Umwelttechnik. VDI-Verlag Düsseldorf 1994, ISBN 3-18-400891-6 , pp. 697-698.
  3. ↑ VDI 2463 sheet 8: 2014-05 Measurement of particles; Detection of airborne dust in outdoor and indoor air; Non-fractionating sampling system for low-volume samplers (LVS) (Particulate matter measurement; Determination of suspended particulate matter in ambient air and indoor air; Non-fractioning sampling system for low-volume samplers (LVS)). Beuth Verlag, Berlin. Pp. 4-5.
  4. ↑ VDI 2463 sheet 7: 2014-05 Measurement of particles; Detection of airborne dust and gaseous chemical compounds in outdoor and indoor air; Active sampling using a low-volume sampler (LVS) (Particulate matter measurement; Determination of suspended particulate matter and gaseous chemical compounds in ambient air and indoor air; Active sampling via low-volume sampler (LVS)). Beuth Verlag, Berlin. P. 5.
  5. ↑ VDI 4300 sheet 11: 2013-12 Measurement of indoor air pollution ; Measurement strategy for the detection of airborne particles in the interior; PM 2.5 fraction (Measurement of indoor air pollution; Measurement strategies for determination of airborne particles in indoor environment; Particles PM 2.5 fraction). Beuth Verlag, Berlin. P. 31.
  6. ↑ a b Dieter Bake, Lothar Laskus: Development and use of an easily transportable filter device for airborne dust measurements . In: Dust - cleanliness. Air . 38, No. 1, 1978, ISSN  0949-8036 , pp. 21-24.
  7. ↑ VDI 2464 sheet 1: 2009-09 Measurement of immissions; Measuring indoor air; Measuring polychlorinated biphenyls (PCB); GC / MS method for PCB 28, 52, 101, 138, 153, 180 (Ambient air measurement; Indoor air measurement; Measurement of polychlorinated biphenyls (PCBs); GC / MS method for PCB 28, 52, 101, 138, 153 , 180). Beuth Verlag, Berlin. P. 7.