Water quality. Sampling - Guidance on sampling of groundwaters shop-only 1 Surface hardness test

1 Surface hardness test

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often defined in law

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Water quality. Sampling - Guidance on sampling of groundwaters shop-only 1 Surface hardness testBS ISO 5667 11: 2009 Water quality. Sampling. Guidance on sampling of groundwaters BS ISO 5667 11 gives guidance on water quality sampling and investigation of contaminated or potentially contaminated sites. It can be used with other guidance documents as any groundwater sampling from such sites is likely to form part of a much wider investigation programme. Development of a groundwater sampling programme depends on the purposes of the investigation.