Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Lambeth Borough]
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Description of the Sample | No. of Samples | Ammoniacal Nitrogen | Albuminoid Nitrogen | Nitrate Nitrogen | Chlorides as CI. | Oxygen abs. from KMnO4 4 hrs. at 27°C. | |
---|---|---|---|---|---|---|---|
Description of the Sample | Sulphate as SO4 | Magnesium as Mg | Natural Fluoride as F | Surfaceactive material as Manoxol OT | Electrical Conductivity (micromhos) | ||
550 | |||||||