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GB/T 8478-2020 English PDF (GBT8478-2020)

GB/T 8478-2020 English PDF (GBT8478-2020)

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GB/T 8478-2020: Aluminium windows and doors

This standard specifies the classification and marking, requirements, test methods, inspection rules, product markings and accompanying documents, packaging, transportation and storage of aluminum windows and doors. This standard is applicable to windows and pedestrian doors for exterior walls and interior partition walls of manual opening and closing operations, as well as vertical roof windows.
GB/T 8478-2020
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 91.060.50
P 32
Replacing GB/T 8478-2008
Aluminum windows and doors
ISSUED ON: MARCH 31, 2020
IMPLEMENTED ON: FEBRUARY 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 8
2 Normative references ... 8
3 Terms and definitions ... 10
4 Classification and marking ... 13
5 Requirements ... 17
6 Test method ... 30
7 Inspection rules ... 35
8 Product marking and accompanying documents ... 38
9 Packaging, transportation and storage ... 40
Appendix A (Informative) Standards for common materials and accessories 42 Appendix B (Informative) Types and applicable scope of commonly used
sealant strip ... 47
Appendix C (Informative) Vertical form and specification of typical test piece for type inspection of aluminum alloy windows and doors ... 48
Appendix D (Informative) Main content of the installation and operation manual of aluminum alloy windows and doors ... 50
References ... 52
Aluminum windows and doors
1 Scope
This standard specifies the classification and marking, requirements, test methods, inspection rules, product markings and accompanying documents, packaging, transportation and storage of aluminum windows and doors.
This standard is applicable to windows and pedestrian doors for exterior walls and interior partition walls of manual opening and closing operations, as well as vertical roof windows.
This standard does not apply to skylights, non-vertical roof windows, roller shutter doors and swing doors, as well as special windows and doors such as fire-resistant windows and doors, explosion-proof windows and doors, escape windows and doors, smoke exhaust windows, anti-ray shielding windows and doors.
2 Normative references
The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 4956 Non-magnetic coatings on magnetic substrates -Measurement
of coating thickness - Magnetic method
GB/T 5237 (all parts) Wrought aluminum alloy extruded profiles for
architecture
GB/T 5823 Terminology for building windows and doors
GB/T 5824 Size system of opening for windows and doors in building
GB/T 7106 Test methods of air permeability, water tightness, wind load
resistance performance for building exterior windows and doors
GB/T 8484 Graduation and test method for thermal insulating properties of doors and windows
GB/T 29738-2013 Graduations and test method for performance of exterior windows and doors, curtain walls impacted by windborne debris in
windstorm
GB/T 29739 Test method of resistance to repeat opening and closing for
windows and doors
GB/T 30591 Requirements for size coordination for opening of windows and doors in building
GB/T 31433 General specification for building curtain walls, windows and doors
GB/T 33993 Two dimensional code for commodity
GB/T 38252 Test method of fire-resistance integrity for building windows and doors
JC/T 881 Building sealants for joint of concrete construction
JC/T 2304 The technical specification of energy efficient glass for building JG/T 255 Sealed insulating glass unit with shading inside
JG/T 440 Test method for shading performance of windows and doors
JG/T 455 Tempered glass for window, door and curtain wall in buildings
JGJ 102 Technical code for glass curtain wall engineering
JGJ 113 Technical specification for application of architectural glass
JGJ/T 151 Calculation specification for thermal performance of windows, doors and glass curtain-walls
3 Terms and definitions
The terms and definitions defined in GB/T 5823 and GB/T 5824 as well as the following terms and definitions apply to this document.
3.1
Aluminum windows and doors
The general term for windows and doors that use aluminum alloy
construction profiles to make frames and leaf-bar structures.
3.2
Windows and doors with solar heat gain coefficient SHGC no greater than 0.44.
3.8
Thermal insulating and heat-insulating type windows and doors
Windows and doors with a heat transfer coefficient K less than 2.5 W/(m2 ?? K) and a solar heat gain coefficient SHGC no greater than 0.44.
3.9
Fire-resistant windows and doors
Under the specified test conditions, closed windows and doors with a fire- resistance integrity E of not less than 30 min.
3.10
Resistance to repeat opening and closing for windows and doors
The ability of windows and doors to maintain its normal use function after withstanding the long-term repeated opening and closing operation of the movable leaf, which is characterized by the number of repeated opening and closing times during which no deformation, fault, damage occurs that will affect the normal opening and closing.
3.11
Major load-bearing frame member
Profile members such as horizontal frames, middle vertical frames, leaf sashes and combined window and door sets in the windows and doors that
bear and transmit the gravity of the windows and doors themselves as well as the horizontal wind load.
3.12
Major profiles
The basic framework that constitutes the window and door frame and the
leaf rod system, on which the window and door frames and leaf profiles such as opening leaf or glass, supplemental profiles, accessories are assembled, as well as the combined frame set profiles of windows and doors, are
assembled.
3.13
Supplemental profile
level 4, water tightness level 3, air tightness level 6, which is marked as: Aluminum window GB/T 8478 WNH60PLC-115115-P34/??P3/q16
Example 5: Interior door, sound-proofing type, 125 series, lifting sliding, aluminum alloy door, specification code 175205, sound-proofing performance < Rw + C> level 3, which is marked as:
Aluminum alloy door GB/T 8478 NGS125STLM-175205< Rw + C>3
Example 6: Interior window, thermal-insulating type, 80 series, sliding, aluminum alloy window, specification code 175145, thermal-insulating
performance K value 2.5, which is marked as:
Aluminum window GB/T 8478 NBW80TLLC-175145-K2.5
Example 7: Exterior door, thermal-insulating fire-resistant type, 70 series vertically hinged aluminum alloy door, specification code 085205, wind pressure resistance level 6, water tightness level 5, air tightness level 8, thermal- insulating performance K value 2.5, outdoor fire-resistance integrity E of 30 min, which is marked as:
Aluminum alloy door GB/T 8478 WBWNH70PLM-085205-
P36/??P5/q18/K2.5/E30(o)
5 Requirements
5.1 Materials and accessories
5.1.1 General requirements
The materials and accessories used for aluminum alloy windows and doors shall comply with the relevant national standards. For the standards on commonly used materials and accessories, see Appendix A. Other materials and accessories with performance and quality not less than those required by Appendix A of this standard may also be used.
5.1.2 Aluminum alloy profiles
5.1.2.1 Cross-sectional size and allowable deviation of base material
5.1.2.1.1 The nominal size of the wall thickness of the main profile?€?s base material used for the main load-bearing members of exterior windows and doors shall be determined by design calculation and test.
5.1.2.1.2 The nominal size of the wall thickness of the main profile?€?s base material for windows and doors (except the wall thickness of the wing wall at and openings shall comply with the category F provisions of GB/T 14683 or the provisions of JC/T 881. The secondary sealant for the insulating glass of the hidden frame window shall adopt the silicone structural sealant conforming to the provisions of GB 24266; the silicone structural sealant for the bonding of the glass and the frame profile shall comply with the provisions of GB 16776. 5.1.5.3 Fire-retardant sealant for windows and doors shall adopt flame- retardant sealant in accordance with GB/T 24267; its fire resistance shall meet the fire resistance integrity as specified in GB 23864, which shall not be less than 1.0 h; meanwhile it shall meet the requirements of 5.1.5.1.
5.1.5.4 The sealant strips of single material or composite material shall be selected according to the use environment and functional requirements of windows and doors (see Appendix B); meanwhile the compatibility and
contamination of the material of the sealant strips and its contact parts shall be considered.
5.1.5.5 Flame-retardant sealant strips for windows and doors shall select flame- retardant sealant strips according to the needs of their application parts; select fire-expanding sealant strips in appropriate parts. The fire-expanding sealant strip which is fixed and installed by the use of self-adhesive adhesive tape shall not contain any plasticizer that can easily cause the adhesive tape to fall off. 5.1.5.6 The elastic materials such as glass support blocks and positioning blocks shall meet the relevant provisions of JGJ 113 on glass installation materials; the elastic materials such as glass support blocks and positioning blocks for fire-resistant windows and doors shall use flame-retardant materials. 5.1.6 Hardware accessories
The functional hardware accessories for the connection and locking of windows and doors shall meet the requirements of the carrying capacity of the whole window and door set; its repeated opening and closing performance shall meet the durability requirements of repeated opening and closing of windows and doors.
5.1.7 Fasteners
Stainless steel fasteners shall be used for the mechanical connection of window and door assembly. Aluminum and aluminum alloy blind rivets shall not be used as fasteners for forced connection of windows and doors.
5.2 Appearance and surface quality
5.2.1 The surface of the product shall be clean and free of stains. There shall be no obvious color difference, unevenness, scratches, scrapes, bumps and other defects on the aluminum alloy profiles and glass surface of the frame leaf. thickness shall be not less than 6 mm.
5.4 Assembly quality
5.4.1 The window and door frame and the leaf rod are firmly connected; the assembly gap shall be effectively sealed.
5.4.2 The accessories of windows and doors are firmly installed; the hardware accessories of the opening leaf are flexible; the opening and closing of windows and doors are not stuck.
5.4.3 Fasteners are in place and are sealed according to the design
requirements.
5.4.4 The installation position of the hardware accessories for opening and locking of windows and doors is correct; the locking state shall meet the design requirements.
5.5 Construction
5.5.1 The connection structure between the window and door?€?s frame leaf bars shall be firm and reliable; the parts which can be touched by people shall be flat; the exposed holes and sharp edges should be sealed and wrapped.
5.5.2 Safety devices such as child locks, anti-fall, anti-pinch, lightning protection shall be installed according to the functions and design requirements of windows and doors.
5.5.3 It should set up functional devices such as micro-ventilation, anti- mosquito yarn, draught board according to the functions and design
requirements of windows and doors.
5.5.4 The installation and connection structure of windows and doors
accessories and hardware accessories shall have the convenience of
replacement and maintenance.
5.5.5 The lower frame of windows and doors should not be provided with
through-type installation holes. The lower frame of windows and doors with through-type installation holes shall adopt effective waterproof sealing structure. 5.5.6 The lower end of the glass of the hidden frame structure shall be provided with no less than two aluminum alloy or stainless steel supporting bars; the supporting bar and the glass panel?€?s supporting member shall be reliably connected; it shall provide a flexible gasket between the supporting bar and the glass. The cross-section of the supporting bar shall be determined by
calculation; it shall be able to bear the design value of the gravity load of the lattice glass. The supporting bar of insulating glass shall be able to carry the exterior glass.
E30(i).
5.6.8 Natural lighting performance
5.6.8.1 The lighting performance index and classification of exterior windows shall comply with the provisions of GB/T 11976. For exterior windows with natural lighting requirements, the transmission reduction factor Tr shall not be less than 0.45; for windows and doors with color discrimination requirements, the color transmission index Ra shall not be less than 60.
5.6.8.2 For exterior windows that also have thermal-insulating performance requirements, it shall also comprehensively consider the requirements for the solar heat gain coefficient.
5.6.9 Anti-sand dust performance
5.6.9.1 The anti-sand performance of exterior windows and doors is based on the mass M of the sand entering indoor through the unit opening slit at a certain pressure difference and time as the classification index; the dustproof performance use the penetration amount C of inhalable particulate matter entering indoor through the unit area at a certain pressure difference and time period as the classification index. The classification of sand and dust prevention performance of windows and doors shall comply with the provisions of GB/T 31433.
5.6.9.2 For exterior windows and doors with sand prevention performance requirements, the sand prevention performance index M shall not be greater than 6.0 g/m. For exterior windows and doors with dust prevention performance requirements, its dust performance index C shall not be greater than 60.0 mg/m2. The specific requirements of the sand and dust prevention performance indicators of windows and doors shall be determined according to the sand and dust weather conditions and use requirements of the area where they are applied, with reference to Appendix A of GB/T 31433-2013.
5.6.10 Resistance to airborne debris impact
The resistance to airborne debris impact of exterior windows and doors is measured by the mass m and velocity v of the projectile; its classification shall meet the requirements of GB/T 31433. Exterior windows and doors with impact resistance to airborne debris shall be determined according to the provisions of Appendix B of GB/T 29738-2013; the corresponding impact level and index shall be determined according to the local basic wind speed as well as the protection level and installation height of buildings.
5.6.11 Mechanical properties
5.6.11.1 Performance items
performance.
Note: The distortional deformation of sliding windows and doors is the local inlaid position?€?s residual deformation caused by the opening and closing force of the forcefully pushing and pulling convex handle when the top and bottom of the movable leaf are blocked at the same time.
5.6.11.7 Resistance to diagonal deformation (sliding translation windows and doors)
When the movable leaf of sliding windows and doors (left and right sliding window, lifting pull window) is blocked at one of its corners, after the opening part is subject to 200 N action force in the opening and closing directions, the residual deformation of the diagonal of the leaf shall not be greater than 5 mm. Meanwhile it maintains normal opening and closing function.
5.6.11.8 Resistance to vigorous closing (vertically hinged doors, vertically hinged rotation exterior windows < except sliding shafts>)
When the movable door of the vertically hinged rotation exterior windows and doors is opened at 45 ???? 5??, its opening part is vigorously closed under the load force of 75 Pa times the area of the movable leaf, repeated 10 times, the windows and doors shall not have deformation, fault, damage which may affect the normal use.
5.6.11.9 Impact resistance of opening limit stop (vertically hinged rotation exterior window)
After the movable leaf of the vertically hinged rotation exterior window is subject to 3 opening limit impact tests at the opening part under the free fall inertial force of a 10 kg weight, the limit stopper shall not be damaged; the frame leaf shall have normal connection function.
5.6.11.10 Static load resistance of support positioning block (interior vertically hinged window, exterior bottom-hung window)
When the supporting positioning device of window is opened, respectively apply load along the closed and open direction from the leaf plane perpendicular to the opening part of the movable leaf, at a 40 N action force for friction support device and 200 N action force for locking support (for the exterior bottom-hung window which is positioned by locking type retractable support, the loading along the opening direction shall be on the maximum openable location), the connection between the support and frame and leaf shall not be damaged; the positioning function shall be normal.
5.6.12 Durability of repeated opening and closing
6.1.1 Quality verification
When the materials and accessories used for aluminum alloy windows and
doors enter the factory, check the accompanying technical documents such as product certification or quality assurance, or use the necessary measurements and tests to verify that the marked performance and quality index values are consistent with the corresponding standards (or contractual requirements) as shown in Appendix A.
6.1.2 Aluminum alloy profiles
6.1.2.1 Substrate?€?s cross-section and dimensional deviation
For the wall thickness of the substrate, use a film thickness detector which has a resolution of 0.5 ??m and a measuring tool which has a resolution of not less than 0.02 mm, to measure the surface treatment layer?€?s film thickness and the total wall thickness of the profile. The number of measurement points at the same type of locations of the profile shall be not less than 5 points. The measured wall thickness of the substrate is the difference between the total wall thickness of the profile and the thickness of the surface treatment layer, accurate to 0.01 mm, taking the average value.
The non-wall thickness dimension deviation of the substrate shall be inspected in accordance with the provisions of GB/T 5237.1.
6.1.2.2 Surface treatment layer?€?s thickness
Use a film thickness detector which has a resolution of 0.5 ??m to measure the same type of locations on a profile; the measurement point shall not be less than 5 points; take the average value.
6.1.3 Glass
The variety, performance and quality of the glass shall be verified in accordance with the provisions of 6.1.1.
6.1.4 Steel
The thickness of the hot-dip galvanized layer, zinc electroplating and anti-rust coatings on the steel surface shall be tested in accordance with the provisions of GB/T 4956. The quality inspection of the black oxide film of steel shall be conducted in accordance with the provisions of GB/T 15519.
6.1.5 Sealing and elastic materials
The compatibility, adhesion, contamination of the sealing material and the contacted material, as well as the performance quality of the glass support and positioning elastic material, shall be verified according to the use requirements method specified in JG/T 440. The arbi...

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