Water quality. Guidance on pro-rata Multi-Habitat sampling of benthic macro-invertebrates from wadeable rivers has-hardcopy What is BS EN 26461-1-Detection

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Water quality. Guidance on pro-rata Multi-Habitat sampling of benthic macro-invertebrates from wadeable rivers has-hardcopy What is BS EN 26461-1-DetectionWhat is BS EN 16150 Multi Habitat sampling of benthic macro invertebrates about? BS EN 16150 gives guidance on procedures for the pro rata Multi Habitat Sampling (MHS) of benthic macro invertebrates in wadeable rivers and streams. The term "pro rata" reflects the intention to sample adequate proportions of riverine habitats with reference to their percentage occurrence. The pro rata MHS technique does not replace other techniques, but is rather,