This International Standard describes the preparation of four types of water of different hardness, conductivity and alkalinity, intended to be used for testing the performance of household appliances such as washing machines, dishwashers, tumble dryers, steam irons etc.<\/p>\n
It defines the characteristics of these waters and establishes various methods to be used for obtaining them. It also includes specifications for required measurements.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions and symbols 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 3.2 Symbols <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4 Measurements and accuracy 5 Standard water 5.1 Water types Tables Table 1 \u2013 Measurement specifications Table 2 \u2013 Composition of soft, medium hard, hard and very hard water <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5.2 Additional requirements 6 Preparation of standard water 6.1 Demineralisation of natural water 6.2 Preparation of standard water method B 6.2.1 Principle 6.2.2 Procedure Table 3 \u2013 Maximum content of heavy metal ions and chloride <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 6.2.3 Composition of standard water prepared by method B 6.3 Preparation of water methods C1 and C2 6.3.1 Principle 6.3.2 Composition of standard water prepared by methods C1 and C2 Table 4 \u2013 Amounts of salt solutions to be added to 1 l of demineralised water Table 5 \u2013 Expected composition of standard water achieved by method B <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 6.3.3 Hardness adjustment method C1 6.3.4 Hardness adjustment method C2 6.4 Preparation of water method C3 6.4.1 Principle 6.4.2 Determination of initial water properties 6.4.3 Dilution with demineralised water <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 6.4.4 Determination of the required salt additions <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 6.4.5 Adjusting PH 7 Storage of standard water 7.1 General 7.2 Effects of heat on standard water 8 Checking <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Annex A (informative) Water hardness \u2013 Conversion table Table A.1 \u2013 Conversion in French, English, German degrees and grains per gallon (US) for the values of specified total hardness <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Household electrical appliances. Performance. Water for testing<\/b><\/p>\n |