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    Article

    Macrozoobenthos interlaboratory comparison on taxonomical identification and counting of marine invertebrates in artificial sediment samples including testing various statistical methods of data evaluation

    A macrozoobenthos interlaboratory comparison was carried out by 16 laboratories to check the taxonomical expertise and the precision of sorting and counting. Participating laboratories had to determine and cou...

    Petra Schilling, Martin Powilleit, Steffen Uhlig in Accreditation and Quality Assurance (2006)

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    Article

    Chlorophyll-a determination: results of an interlaboratory comparison

    A chlorophyll-a interlaboratory comparison was carried out to compare three different analytical chlorophyll-a determination methods: a German standard DIN 38412-16, a method of the HELCOM-Combine-Manual and the ...

    Petra Schilling, Martin Powilleit, Steffen Uhlig in Accreditation and Quality Assurance (2006)