GB/T 39979-2021 English PDF (GBT39979-2021)

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GB/T 39979-2021: General technical specification of indoor window decoration for building
GB/T 39979-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.100.99
Q 18
General Technical Specification of Indoor Window
Decoration for Building
ISSUED ON: MAY 21, 2021
IMPLEMENTED ON: DECEMBER 1, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative References ... 4 
3 Terms and Definitions ... 6 
4 Classification, Codes and Marks ... 13 
5 Materials and Components ... 14 
6 Requirements ... 16 
7 Test Methods ... 20 
8 Inspection Rules ... 21 
General Technical Specification of Indoor Window
Decoration for Building
1 Scope
This Standard specifies the classification, codes and marks, materials and components,
requirements, test methods and inspection rules of indoor window decoration for
building.
This Standard is applicable to indoor window decoration for civil building.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 2518 Continuously Hot-dip Zinc-coated Steel Sheet and Strip
GB/T 3280 Cold Rolled Stainless Steel Plate, Sheet and Strip
GB/T 4237 Hot Rolled Stainless Steel Plate, Sheet and Strip
GB 4706.101 Household and Similar Electrical Appliances - Safety - Particular
Requirements for Drives for Rolling Shutters, Awnings, Blinds and Similar Equipment
GB/T 5237.1 Wrought Aluminum Alloy Extruded Profiles for Architecture - Part 1: Mill
Finish Profiles
GB/T 5237.2 Wrought Aluminum Alloy Extruded Profiles for Architecture - Part 2:
Anodized Profiles
GB/T 5237.3 Wrought Aluminum Alloy Extruded Profiles for Architecture - Part 3:
Electrophoretic Coating Profiles
GB/T 5237.4 Wrought Aluminum Alloy Extruded Profiles for Architecture - Part 4:
Powder Coating Profiles
GB/T 5237.5 Wrought Aluminum Alloy Extruded Profiles for Architecture - Part 5: Paint
Coating Profiles
GB/T 8427-2019 Textiles - Tests for Color Fastness - Color Fastness to Artificial Light:
Xenon Arc
GB/T 11976 Graduation and Test Method of Daylighting Properties for External
Windows
GB/T 12754 Pre-painted Steel Sheet and Strip
GB/T 15675 Continuously Electrolytically Zinc / Zinc-nickel Alloy Coated Steel Sheet
and Strip
GB 18401 National General Safety Technical Code for Textile Products
GB/T 18830 Textiles - Evaluation for Solar Ultraviolet Radiation Protective Properties
GB/T 18883 Indoor Air Quality Standard
JG/T 241 Blinds and Shutters - Mechanical Endurance - Test Methods
JG/T 242 Blinds and Shutters - Measurement of Operating Force - Test Methods
JG/T 275 Test Methods for Misuse of Building Shading Product
JG/T 276 Technical Requirements for Electrical Equipment of Building Shading
Product
JG/T 277 Performance Characteristics and Classification on Thermal and Visual
Comfort for Building Shading Product
JG/T 278 Motor for Building Shading Product
JG/T 281 Test Method for Building Shading Product Energy Resistant Coefficient
JG/T 356 Test Methods of Building Shading Product on Indoor Environment Thermal
and Visual Comfort
JG/T 399 Terminology of Solar Shading Product for Building
JG/T 424 General Requirements for Solar Shading Fabric of Building
LY/T 1636 Use Category and Specification for Preservative-treated Wood
LY/T 1815 Non-structural Glued Laminated Bamboo
LY/T 1855 Slats of Wooden Blind and Shutter
LY/T 2885 Bamboo Blinds
YS/T 431 Aluminum and Aluminum Alloys - Coil Coated Sheet and Strip
YS/T 621 Aluminum and Aluminum Alloys Sheet for Persian Blinds
5.1.1 The manual operative device for the window decoration product shall have
protection from strangulation hazards.
5.1.2 The indoor environmental pollution control of materials used for the window
decoration product shall comply with the stipulations of GB/T 18883.
5.1.3 The combustion performance of materials used for the window decoration
product shall comply with the requirements of the order contract.
5.2 Metal
5.2.1 The aluminum alloy profiles for architecture shall comply with the stipulations of
GB/T 5237.1 ~ GB/T 5237.5. The aluminum alloy strips shall comply with the
stipulations of YS/T 621 and YS/T 431.
5.2.2 The pre-painted steel sheets and strips shall comply with the stipulations of GB/T
12754. The continuously hot-dip zinc-coated steel sheets and strips shall comply with
the stipulations of GB/T 2518. The continuously electrolytically zinc / zinc-nickel alloy
coated steel sheets and strips shall comply with the stipulations of GB/T 15675. The
stainless steel shall comply with the stipulations of GB/T 3280 or GB/T 4237.
5.3 Fabric and Non-woven Fabric
5.3.1 The fabrics shall comply with the stipulations of JG/T 424.
5.3.2 The level of color fastness to light of non-woven fabrics shall not be lower than
Level-4 specified in GB/T 8427-2019.
5.3.3 When the non-woven fabrics have anti-ultraviolet function, the anti-ultraviolet
performance shall comply with the stipulations of GB/T 18830.
5.3.4 The limit of hazardous substances of non-woven fabrics shall comply with the
stipulations of GB 18401.
5.4 Bamboo and Timber
5.4.1 The formaldehyde emission of timber [dryer method (40 L)] shall not be greater
than 1.5 mg/L.
5.4.2 The anti-corrosion performance of timber shall comply with the stipulations of
LY/T 1636.
5.4.3 The bamboo material shall comply with the stipulations of LY/T 1815.
5.5 Plastic
The plastic shall comply with the requirements of corresponding standards.
5.6 Electric Drive
Table 7 -- Grading of Light Transmission Reduction Coefficient
6.9 Thermal and Visual Comfort Performance
The thermal and visual comfort performance of the window decorative products with
the shading function, and the grading shall comply with the stipulations of JG/T 277.
7 Test Methods
7.1 Appearance Quality
With the natural illumination intensity and a sight distance of no more than 3 m, conduct
the visual inspection.
7.2 Dimensional Deviations
Use a steel tape with a minimum division value of 1 mm for the measurement. Each
product shall be measured for at least three locations. The limit deviation between all
measured values and the nominal value shall be taken as the test result.
7.3 Operating Performance
During the second manual (electric) cycle, conduct visual inspection on the conditions
of continuity, flat width, off-tracking and synchronization.
For limit detection, use a steel tape with a minimum division value of 1 mm to measure
the distance deviated from the set position during the extension and retraction process.
7.4 Operating Force
In accordance with the stipulations of JG/T 242, conduct the determination.
7.5 Maloperation
In accordance with the stipulations of JG/T 275, conduct the determination.
7.6 Mechanical Endurance
In accordance with the stipulations of JG/T 241, conduct the determination.
7.7 Shading Performance
In accordance with the stipulations of JG/T 281, conduct the determination.