Fluid Categories
Fluid category
Means a category of fluid described in Schedule 1 of the Water Supply (Water Fittings) Regulations and/or Scottish Water Byelaws.
Interpretation given in Part 1: Preliminary of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws
Fluid Category 1
Wholesome water supplied by the undertaker and complying with the requirements made under section 67 of the Water industry Act 1991/ the Water Supply (Water Quality) (Scotland) Regulations 1990 and any amendment
Description given in Schedule 1: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws
Fluid Category 2
Water in fluid category 1 whose aesthetic quality is impaired owing to –
a change in its temperature, or
the presence of substances or organisms causing a change in its taste, odour or appearance, including water in hot water distribution systems.
Description given in Schedule 1: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws
Fluid Category 3
Fluid which represents a slight health hazard because of the concentration of substances of low toxicity, including any fluid which contains –
ethylene glycol, copper sulphate solution or similar chemical additives, or
sodium hypochlorite (chloros and common disinfectants)
Description given in Schedule 1: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws
Fluid category 4
Fluid which represents a significant health hazard because of the concentration of toxic substances, including any fluid which contains –
chemical, carcinogenic substances or pesticides (including insecticides an herbicides), or
Environmental organisms of potential health significance
Description given in Schedule 1: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws
Fluid Category 5
Fluid which represents a serious health hazard because of the concentration of pathogenic organisms, radioactive or very toxic substances, including any fluid which contains –
faecal material or other human waste:
butchery or other animal waste: or
pathogens from any other source.
Description given in Schedule 1: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws