Abstract
The sampler is operated by hydrostatic pressure and consists of a stainless steel cylinder to which is attached a membrane filter holder. A glass inlet tube is broken by a messenger and a predetermined volume of water is filtered. Valves protect the membrane from flow-back and release the pressure as the sampler returns to the surface. The sampler works satisfactorily at 15 m and is strong enough to be used down to 6000 m. The filling rate is controlled by a jet behind the filter holder.
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Literature cited
Kriss, A. E.: Marine microbiology, 536 pp. Edinburgh and London: Oliver & Boyd 1963.
Oppenheimer, C. H.: The membrane filter in marine microbiology. J. Bact. 64, 783–786 (1952).
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Communicated by O. Kinne, Hamburg
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Williams, E.D.F. A submerged membrane filter apparatus for microbiological sampling. Marine Biology 3, 78–80 (1969). https://doi.org/10.1007/BF00355595
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DOI: https://doi.org/10.1007/BF00355595