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Abstract

Measurements have been made of the inlet efficiency of four suspended particulate matter (SPM) samplers in a wind tunnel large enough for the relevant range of turbulent eddy sizes to be simulated. The measurements were made under contract to the Commission of the European Communities (DG XI) in connection with Council Directive 80/779/EEC on Sulphur Dioxide and Suspended Particulates. The samplers tested were: the LIS/P and GS050/3 samplers used by the Federal Republic of Germany, the ISTISAN sampler used by Italy, and an 8-stage Andersen non-viable impactor, without the preseparator, which is used to give information on particle size distribution. Monodisperse aerosols of uranine (sodium fluorescein) between 2.5 mum and 23.0 mum in aerodynamic diameter were used at wind speeds of 1, 3 and 7 m/sec. High inlet efficiencies were found for all of the samplers at all particle sizes at a wind speed of 1 m/sec. At the higher wind speeds the efficiencies fell with increasing particle diameter, the decline in efficiency with increasing particle size and wind speed being less pronounced for the LIS/P and GS050/3 samplers than for the ISTISAN and Andersen samplers.

Additional information

Authors: BARRETT C F, WARREN SPRING LABORATORY, DEPARTMENT OF INDUSTRY, STEVENAGE (UK);RALPH M O, WARREN SPRING LABORATORY, DEPARTMENT OF INDUSTRY, STEVENAGE (UK);UPTON S L WARREN SPRING LABORATORY, DEPARTMENT OF INDUSTRY, STEVENAGE (UK), WARREN SPRING LABORATORY, DEPARTMENT OF INDUSTRY, STEVENAGE (UK)
Bibliographic Reference: EUR 9378 EN (1984) MF, 72 P., BFR 120, BLOW-UP COPY BFR 360, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
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