GB/T 20109-2025Fresh air dehumidifiers (English PDF)
全新风除湿机
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 31, 2025
Implementation date
May 1, 2026
Scope
GB/T 20109-2025 is the English-translated version of 全新风除湿机.
GB/T 20109-2025 is the Chinese standard "Fresh air dehumidifiers". Its scope clause reads: This document specifies the types, models, basic parameters, technical requirements, and inspection rules for all-fresh-air dehumidifiers, as well as their marking, packaging, and transportation.
Storage, and the corresponding experimental methods are described. This document applies to all fresh air dehumidifiers that use compressor cooling for dehumidification and/or chilled water for dehumidification. Its clauses include terms and definitions.
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Document preview — GB/T 20109-2025
National Standard of the People's Republic of China
- ICS
- 27.200
- Classification
- J 73
- Replacing
- GB/T 20109-2006
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1.Scope
- 2 Normative References
- 3.Terms and Definitions
- 4.Types, Models, and Basic Parameters
- 5 Technical Requirements
- 6.Test Methods 8.
- 7.Inspection Rule
- 8.Marking, Packaging, Transport and Storage
1 Scope
This document specifies the types, models, basic parameters, technical requirements, and inspection rules for all-fresh-air dehumidifiers, as well as their marking, packaging, and transportation.
Storage, and the corresponding experimental methods are described.
This document applies to all fresh air dehumidifiers that use compressor cooling for dehumidification and/or chilled water for dehumidification.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 191 Packaging and Storage Graphic Symbols
GB/T 2423.17 Environmental testing - Part 2.Test methods - Test Ka. Salt spray
GB/T 2828.1 Sampling Procedures for Inspection by Attributes - Part 1.Sampling Schemes Retrieved by Acceptable Quality Limit (AQL) for Lot-by-Lot Inspection
GB 2894-2025 Safety Colors and Safety Signs
GB/T 4706.32-2024 Safety of household and similar electrical appliances - Part 32.Special applications of heat pumps, air conditioners and dehumidifiers
Require
GB/T 6388 Transport Packaging Receipt and Delivery Marks
GB/T 9237 Safety and Environmental Requirements for Refrigeration Systems and Heat Pumps
GB/T 9286-2021 Paints and varnishes - Cross-cut test
GB/T 13306 Nameplates
GB/T 17758-2023 Unitary Air Conditioners
GB/T 18430.1 Vapor compression cycle chilled water (heat pump) units - Part 1.Chillers (heat pumps) for industrial or commercial and similar applications
Pump unit
GB/T 19411-2024 Dehumidifiers
GB 25130 Safety Requirements for Unitary Air Conditioners
GB/T 26572 Limits for Restricted Substances in Electrical and Electronic Products
JB/T 7249 Terminology for Refrigeration and Air Conditioning Equipment
3 Terms and Definitions
The terms and definitions defined in GB/T 19411 and JB/T 7249, as well as the following terms and definitions, apply to this document.
3.1 Freshair dehumidifier
A dehumidifier that treats all incoming outdoor fresh air (without indoor return air circulation) to control the moisture content of the fresh air.
3.2
A brand-new dehumidifier that relies solely on a vapor compression refrigeration cycle for cooling and dehumidification.
GB/T 21360 | GB/T 21001.2 | GB/T 19409 | GB/T 18837 | GB/T 20108 | […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 2423.17Environmental testing - Part 2: Test methods - Test Ka: Salt mist
- GB/T 2828.1Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
- GB 2894-2025Safety colours and safety signs
- GB/T 4706.32-2024Safety of household and similar electrical appliances - Part 32: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
- GB/T 9237[Including 2019XG1, 2020XG2] Refrigerating systems and heat pumps -- Safety and environmental requirements
GB/T 6388
Editions of GB/T 20109
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 20109-2025 | Fresh air dehumidifiers | current edition | Current |
| GB/T 20109-2006 | Fresh air dehumidifiers | previous edition | In force |
This page sells the current edition, GB/T 20109-2025. Earlier editions are listed for reference only.
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Related Standards
GB 25130-2010 — Safety requirements for unitary air-Conditioners
GB 2894-2025 — Safety colours and safety signs
GB/T 13306-2011 — Plates
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