GB/T 8478-2020 PDF English
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| GB/T 8478-2020 | English | 405 |
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Aluminum windows and doors
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| GB/T 8478-2008 | English | RFQ |
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Aluminium windows and doors
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| GB/T 8478-2003 | English | 519 |
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Aluminium doors
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| GB/T 8478-1987 | English | 399 |
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GB/T 8478-2020: Aluminum windows and doors---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT8478-2020
NATIONAL STANDARD OF THE
PEOPLE’S 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
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 8485 The graduation and test for airborne sound insulating properties
of windows and doors
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
Thermal insulating performance of windows and doors
The ability of windows and doors to prevent heat transfer from the indoor
high temperature side to the outdoor low temperature side in winter, which
is characterized by the heat transfer coefficient K.
3.3
Heat-shielding performance of windows and doors
The ability of windows and doors to block solar heat gain in summer, which
is characterized by the solar heat gain coefficient SHGC (total solar
transmittance).
3.4
Ordinary-type windows and doors
The exterior windows and doors which only have requirements for the air-
tightness, water-tightness and wind pressure resistance index, as well as the
following two types of interior windows and doors. 1) Only having
requirements for the air-tightness index; 2) Having no requirements for such
performance indexes as air-tightness, water-tightness, wind pressure
resistance, sound-proofing performance, thermal insulation performance,
fire resistance integrity.
3.5
Sound-proofing windows and doors
Windows and doors with airborne sound-proofing performance value not
less than 35 dB.
4 Classification and marking
4.1 Classification and code
4.1.1 Purpose
The windows and doors are divided into two categories according to the use for
the exterior envelop structure and the interior envelop structure.
4.1.2 Type
The types and codes of windows and doors as divided according to the main
performance are as shown in Table 1.
4.1.3 Types
The types and codes of windows and doors as divided according to the opening
method are as shown in Table 2 and Table 3, respectively.
4.1.4 Series
It is divided by the thickness structure dimension (C2) of the window and door
frame in the depth direction of the opening and expressed by its numerical value.
4.1.5 Specifications
It is represented by six digits arranged in the order of thousands, hundreds, ten
digits of the width and height of the windows and doors (B2, A2). When there is
no thousandth digit, it is represented by "0".
4.2 Marking
4.2.1 Marking method
The marking order of windows and doors is. product name, standard number,
use code, type code, series, variety code, product name code (aluminum alloy
door LM; aluminum alloy window LC), specification code, main performance
symbol and grade or index value.
4.2.2 Example of marking
Example 1.Exterior window, ordinary type, 50 series, pivot vertically hinged,
aluminum alloy window, specification code 115145, wind pressure resistance
level 5, water tightness level 3, air tightness level 7, which is marked as.
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.
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.
5.1.2.1.4 The allowable deviation of the non-wall thickness dimension of the
main profile’s base material of windows and doors with assembly relationship
shall adopt the ultra-high precision grade as specified in GB/T 5237.1.
5.1.2.2 Surface treatment
5.1.3 Glass
5.1.3.1 Window and door glass shall use flat glass and its products that comply
with GB 11614.Tempered glass shall meet the requirements of JG/T 455.
Insulating glass shall conform to the provisions of GB/T 11944; the thickness of
the insulating glass’s gas layer for exterior windows and doors shall not be less
than 9.0 mm; the allowable deviation of the thickness of single cavity insulating
glass shall be ±1.5 mm.
5.1.4 Steel
Austenitic stainless steel materials should be used for steels for windows and
doors. If other ferrous materials are used, it shall, according to the needs of use,
adopt the anti-corrosion treatment such as hot-dip galvanizing, zinc
electroplating, black oxidation, anti-rust painting, etc.
5.1.5 Sealing and elastic 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.
5.3 Dimensions
5.3.1 Specifications
5.3.2 Windows, doors, assembly dimensions
5.3.2.1 Assembly size deviation of windows, doors and frame leaf
The allowable deviation of the size and shape of the windows and doors as well
as the deviation of the assembly size of the frame leaf shall meet the
requirements of Table 6.
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.
5.6 Performance
5.6.1 Wind pressure resistance
5.6.2 Water-tightness
5.6.3 Air-tightness
The air-tightness classification of windows and doors and the absolute value of
the indicators shall comply with the provisions of GB/T 31433.
6 Test method
6.1 Materials and accessories
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
6.1.2.2 Surface treatment layer’s thickness
Use a film thickness detector which has a resolution of 0.5 μm 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.
6.2 Appearance and surface quality
According to the observation conditions specified in Chapter 8 of GB/T 12967.6-
2008, use the steel ruler and visual observation method for inspection.
6.3 Dimensions
Use steel tape measure, steel ruler, Vernier caliper, depth ruler, feeler gauge
for inspection.
6.4 Assembly quality
Check by visual observation and hand-touching method.
6.5 Construction
Check by visual observation and hand-touching method.
6.6 Performance
6.6.10 Durability of repeated opening and closing
The durability of repeated opening and closing of windows and doors shall be
tested in accordance with the provisions of GB/T 29739.
6.7 Test sequence
When using the same set of test pieces for two or more items of test, it shall
follow the principles that the previous test result does not affect the subsequent
test result (for example, non-destructive test first and then destructive test), to
determine the test sequence and the coordinated use of test piece.
7 Inspection rules
7.1 Inspection categories and items
7.1.1 Product inspection is divided into exit-factory inspection and type
inspection. The inspection items are as shown in Table 12.
7.1.2 For the type inspection items for the performance of windows and doors,
it shall determine the necessary main performance items (5.6.1 ~ 5.6.7)
according to the six types of windows and doors (ordinary type, sound-proofing
type, thermal-insulating type, heat-insulating type, thermal-insulating heat-
insulating type, fire-resistant type) as specified in 4.1.2;
7.2 Exit-factory inspection
7.2.1 Group-batch and sampling rules
7.2.1.1 The appearance, surface quality and assembly quality are fully
inspected.
7.2.2 Judgment and re-inspection rules
When the inspection results of the random inspection products all meet the
requirements of this standard, the batch of products is judged to be qualified.
If the inspection result of the random inspection product shows that more than
1 set fails to meet the requirements of this standard, then this batch of products
are unqualified.
7.3 Type inspection
7.3.1 Timing of inspection
When one of the following situations is encountered, type inspection shall be
carried out.
7.3.4 Judgment and re-inspection rules
If sampling products all meet the requirements of 5.2 ~ 5.6, the product’s type
inspection is qualified.
8 Product marking and accompanying documents
8.1 Product marking
8.1.1 Contents of basic marks
The product marks of aluminum alloy windows and doors shall include the
following.
8.1.2 Warning signs and instructions
For windows and doors that have complex structures and special opening
methods, improper use will cause damage to the product itself or cause safety
problems, it shall set simple and effective warning signs and instructions
(including text and icons).
8.1.3 Marking method
8.1.3.1 The content of the product mark according to 8.1.1 shall be marked with
a label; the printing of the label shall comply with the provisions of GB/T 13306.
8.2 Product’s accompanying documents
8.2.1 Product certificate
The single set of window and door product shall have a product certificate,
which shall include the following main contents.
8.2.2 Product quality assurance
Each exit-factory inspection lot or handover lot shall have a product quality
guarantee, which shall include the following main contents.
8.2.3 Product’s installation & operation instruction
8.3 Product’s QR code marking
9 Packaging, transportation and storage
9.1 Packaging
9.1.1 It shall, according to the actual situation of aluminum alloy profiles, glass
and accessories of windows and doors, use suitable non-corrosive material
packaging.
9.1.2 The packaging carton shall have sufficient carrying capacity, to ensure
that it is not damaged under normal transportation and storage conditions.
9.2 Transportation
9.2.1 Avoid collisions between packing cartons during transportation.
9.2.2 Handle with care during handling. It is strictly forbidden to drop, throw or
hit.
9.2.3 The means of transportation shall have rain-proof measures and be kept
clean and free from pollution.
9.3 Storage
9.3.1 The product shall be placed in a ventilated and dry place. It is strictly
forbidden to contact with acids, alkalis and salts and prevent rainwater intrusion.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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