IEC 60704-3:2019 is available as \/2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60704-3:2019 describes procedures for determining and verifying the declared values of the noise emitted by household and similar appliances. It applies to all categories of household and similar electrical appliances covered by IEC 60704-1 and all parts of IEC 60704-2, which include particular requirements for special categories of appliances. It applies to appliances being produced in quantity, such as in batches, series or lots, which are manufactured to the same technical specification and characterized by the same declared value of noise emission. This part of IEC 60704: \u2013 considers the term ‘declaration’ to include all means for providing information on the noise emission values to potential users (consumers) of the appliances; this includes labels, brochures, advertisements, commercial and technical information papers, etc.; \u2013 considers the declaration for appliances manufactured by mass production; \u2013 specifies a simple statistical method for verifying the declared values by investigating a sample of only three appliances. This International Standard is to be used in conjunction with IEC 60704-1:2010 and the latest edition of IEC 60704-2 (all parts). This third edition cancels and replaces the second edition published in 2006. This edition constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition: a) in Annex A, standard deviations that are now specified for various appliance categories in the parts of IEC 60704-2 have been excluded from Table A.1; b) furthermore, this edition makes reference to new standards and is implementing ISO\/IEC Directives, Part 2 in a more accurate manner.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 30<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Blank Page <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions and calculations 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | 3.2 Calculations <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | 4 General 4.1 Test method 4.2 Values and symbols <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | 4.3 Reference standard deviation 5 Verification of declared noise emission values 5.1 Basis of the procedure Figure 1 \u2013 Quantile of the standardized distribution <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | 5.2 Verification procedure 6 Determination of noise emission values for declaration 6.1 Basis of the procedure 6.2 Determination procedure 6.3 Presentation of noise emission values <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Annex A (normative) Noise emission of household appliances \u2013 Standard deviations Table A.1 \u2013 Standard deviation <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | Annex B (informative) Verification of noise emission values \u2013 Examples B.1 Example 1 B.2 Example 2 <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Annex C (informative) Determination of noise emission values \u2013 Examples C.1 Example 1 C.2 Example 2 Table C.1 \u2013 Calculated noise emission values as a function of the total standard deviation \u03c3t and the probability of acceptance Pa as assumed by the labeller <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | C.3 Example 3 <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Tracked Changes. Household and similar electrical appliances. Test code for the determination of airborne acoustical noise – Procedure for determining and verifying declared noise emission values<\/b><\/p>\n |