Minimum requirements concerning water quality:
Appearance: colourless, clear
Sediment, without suspended matter
pH value: 6.5-8.0
Total hardness, max.: 20° dH (German hardness grade) or in new measuring unit:
Total hardness, max.: 3.6 mmol Ca 2+/ltr.
Chloride content: max. 100 mg/ltr.
Sulphate content: max. 100 mg/ltr.
Potable tap water usually fulfils these requirements. Local water utilities can provide information about the quality of the water they supply. If necessary, the water must be treated (e.g. softened) or distilled water must be used.
Appearance: colourless, clear
Sediment, without suspended matter
pH value: 6.5-8.0
Total hardness, max.: 20° dH (German hardness grade) or in new measuring unit:
Total hardness, max.: 3.6 mmol Ca 2+/ltr.
Chloride content: max. 100 mg/ltr.
Sulphate content: max. 100 mg/ltr.
Potable tap water usually fulfils these requirements. Local water utilities can provide information about the quality of the water they supply. If necessary, the water must be treated (e.g. softened) or distilled water must be used.
Leave a comment: