Standard No.:	GB/T 4214.19-2025
English Name:	Test method for noise of household and similar electrical appliances—Part 19：Particular requirements for humidifiers
Chinese Name:	家用和类似用途电器噪声测试方法 第19部分：加湿器的特殊要求
Chinese Classification:	Z32    Noise and vibration test methods
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR; SAC
Issued on:	2025-8-29
Implemented on:	2026-3-1
Status:	to be valid
Target Language:	English
File Format:	PDF
Word Count:	9000 words
Translation Price(USD):	270.0
Delivery:	via email in 1~3 business day

GB/T 4214.19-2025 Test method for noise of household and similar electrical appliances—Part 19：Particular requirements for humidifiers English, Anglais, Englisch, Inglés, えいご This is a draft translation for reference among interesting stakeholders. The finalized translation (passing thorugh draft translation, self-check, revision and varification) will be delivered upon being ordered. ICS 97.030 CCS Z32 People's Republic of China National Standard GB/T 4214.19-2025 Test Method for Noise of Household and Similar Electrical Appliances Part 19: Particular Requirements for Humidifiers Issued: 2025-08-29 Implemented: 2026-03-01 Issued by: State Administration for Market Regulation Standardization Administration of China ‌Contents‌ Foreword 1 Scope and Measurement Quantities 2 Normative References 3 Terms and Definitions 4 Measurement Methods and Acoustic Environment 5 Measurement Instruments 6 Operation and Positioning of Tested Appliances 7 Sound Pressure Level Measurement 8 Calculation of Sound Pressure Level and Sound Power Level 9 Recording Requirements 10 Report Contents 1 Scope and Measurement Quantities Except for the following modifications, Chapter 1 of GB/T 4214.1—2017 applies. 1.1 Scope 1.1.1 General Additions: This document applies to humidifiers for household and similar purposes with rated voltage not exceeding 250V for single-phase appliances and 480V for other appliances. This document does not apply to: Humidifiers designed for industrial use; Humidifiers intended for use in special environments with corrosive or explosive atmospheres (e.g., dust, vapors, or gas); Humidifiers for medical purposes. Other appliances with humidification functions may refer to this document for noise testing. 1.1.2 Noise Types Revision: Methods listed in GB/T 6881.2—2017, GB/T 6881.3—2002, and GB/T 3767—2016 may be used for measuring noise emitted by humidifiers. 1.2 Measurement Quantities Addition: Requirements for declared noise values are outside the scope of this document. 1.3 Measurement Uncertainty Revision: The standard deviation estimates for sound power levels of humidifiers determined according to this document are shown in Table 101. 2 Normative References Except for the following modifications, Chapter 2 of GB/T 4214.1—2017 applies. Additions: GB/T 3767—2016 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an approximate free field above a reflecting plane GB/T 6881.2—2017 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for reverberant rooms with small movable sources - Comparison method for hard-walled test rooms GB/T 23119—2017 Household and similar electrical appliances - Performance test water 3 Terms and Definitions Except for the following modifications, Chapter 3 of GB/T 4214.1—2017 applies. Additions: 3.101 Humidifier An electrically driven appliance that increases relative humidity in air. [Source: GB/T 23332—2018, 3.1] 3.102 Evaporative Humidifier A humidifier that disperses evaporated water into air through a fan. Note: Includes centrifugal humidifiers that atomize water droplets using centrifugal force. [Source: GB/T 23332—2018, 3.1.2, modified] 4 Measurement Methods and Acoustic Environment Except for the following modifications, Chapter 4 of GB/T 4214.1—2017 applies. 4.2 Direct Method Addition: If the noise source contains pure tone components, the standard deviation estimate of sound pressure levels measured in a special reverberation room may increase. In such cases, additional microphone positions or source positions may be required as specified in GB/T 6881.3—2002. 4.3 Comparison Method Addition: If the noise source contains pure tone components, the standard deviation estimate of sound pressure levels measured in a hard-walled test room or special reverberation room may increase. In such cases, additional microphone positions or source positions may be required as specified in GB/T 6881.2—2017 or GB/T 6881.3—2002.