GB/T 17748-2016 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 17748-2016 | English | 160 |
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Aluminum-plastic composite panel for curtain wall
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| GB/T 17748-2008 | English | RFQ |
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Aluminium-plastic composite panel for curtain wall
| Obsolete |
| GB/T 17748-1999 | English | 639 |
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Aluminium-plastic composite panel
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GB/T 17748-2016: Aluminum-plastic composite panel for curtain wall---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/GBT17748-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.100.99
Q 18
Replacing GB/T 17748-2008
Aluminum-plastic composite panel for curtain wall
Issued on. OCTOBER 13, 2016
Implemented on. SEPTEMBER 01, 2017
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Classification, specifications and marking... 7
5 Raw materials... 8
6 Requirements... 8
7 Test methods... 11
8 Inspection rules... 26
9 Marking, packaging, transportation, storage and accompanying documents
... 27
Appendix A (Informative) Adhesive film... 29
Appendix B (Informative) Protective film... 32
Appendix C (Informative) Application guide for aluminum-plastic composite
panel... 35
1 Scope
This standard specifies the terms and definitions, classifications, specifications
and markings, raw materials, requirements, test methods, inspection rules,
signs, packaging, transportation, storage and accompanying documents for
aluminum-plastic composite panels (hereinafter referred to as “panels for
curtain wall”) for building curtain walls.
This standard is applicable to aluminum-plastic composite panels for building
curtain walls. For aluminum-plastic composite panels for other purposes, they
may make reference to this standard.
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 1457 Test method for climbing drum peel strength of sandwich
constructions
GB/T 1634.2 Plastics - Determination of temperature of deflection under load
- Part 2.Plastics, ebonite and long-fiber-reinforced composites
GB/T 1720 Method of test for adhesion of paint films
GB/T 1732 Determination of impact resistance of film
GB/T 1740 Determination of resistance to heat and humidity of paint films
GB/T 1766 Paints and varnishes - Rating schemes of degradation of coats
GB/T 1771 Paints and varnishes - Determination of resistance to neutral salt
spray (fog)
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Aluminum-plastic composite panel
A three-layer composite panel which uses ordinary plastic or flame-
retardancy-treated plastic as the core material, aluminum on both sides,
meanwhile the surface of the product is coated with a decorative and
protective coating or film (if not specified, it is commonly named as coating)
Layer) as the decorative surface, shortly referred to as aluminum-plastic
composite panel.
3.2
Aluminum-plastic composite panel for curtain wall
The aluminum-plastic composite panel which uses the flame-retardancy-
treated plastic as the core material, is used as the materials for curtain wall.
3.6
Adhesive film
A composite film formed by co-extruding a functional polymer material
(referred to as a binder) and polyethylene in a production process of an
aluminum-plastic composite panel, which is used for bonding between a
core material and an aluminum material.
4 Classification, specifications and marking
4.1 Classification
It is divided as follows based on combustion performance.
4.2 Specifications
The common specifications of panels for curtain wall are as shown in Table 1.
Other specifications may be agreed between the supplier and the purchaser.
4.3 Marking
It is marked in the order of product name, type, specification, thickness of
aluminum, and standard number.
5 Raw materials
5.1 Aluminum
The aluminum used for panels for curtain wall shall be the 3××× series, 5×××
series or other series of aluminum alloys with better resistance to corrosion and
mechanical properties in accordance with GB/T 3880.2.
5.2 Coating
The surface of the panel for curtain wall should be coated with a fluorocarbon
resin, or other coatings with comparable or superior properties.
5.3 Adhesive film
The thickness of the adhesive film of the panels for curtain wall shall not be less
than 0.05 mm, the binder content shall not be less than 60%. For other
requirements, see Appendix A.
6 Requirements
6.1 Aluminum thickness
The average thickness of the aluminum used for the panels for the curtain wall
shall not be less than 0.50 mm, the minimum thickness shall not be less than
0.48 mm.
6.2 Appearance
The appearance of the panels for curtain wall shall be neat and tidy. The non-
decorative finish shall not have damage which may affect the use of product.
The appearance of the decorative surface shall meet the requirements of Table
2.
6.3 Allowable deviation of dimension
The allowable deviation of the dimension of the panels for curtain wall shall
meet the requirements of Table 3.The allowable deviation of the dimensions of
the special specification may be agreed between the supplier and the purchaser.
6.4 Thickness and performance of coating
The thickness and performance of the coating of panel for curtain wall shall
comply with the requirements of Table 4.
6.5 Physical and mechanical properties
The physical and mechanical properties of the panels for curtain wall shall
comply with the requirements of Table 5.
6.6 Combustion performance
The combustion performance of the panels for curtain wall shall meet the
requirements of Table 6.
7 Test methods
7.1 Test environment
Before the test, the specimen shall be placed in the standard environment as
specified in GB/T 2918 for 24 hours. Unless otherwise specified, the test shall
also be carried out under these conditions.
7.2 Preparation of test pieces
When preparing the test piece, it shall be considered that the performance of
the decorative surface of the product is required to be consistent in the
longitudinal and transverse directions.
7.3 Aluminum thickness
Peel the aluminum material off from the specimen as a test piece. Use the
measuring instrument which has a minimum division value of 0.01 mm to
measure the thickness of the aluminum (excluding the thickness of the coatings,
etc.). The measuring point contains at least 5 places. four corners and the
center. Use the arithmetic mean and minimum value of all the measured values
as the test results.
7.4 Appearance
In the natural light that is not exposed to direct sunlight, erect the panels along
the same production direction side by side to form one plane, the angle between
the panel and the horizontal plane is 70° ± 10°, perform visual inspection at 3
m away from the center of the formed panel plane.
7.5 Allowable deviation of dimension
7.5.1 Length and width
Use a steel tape which has the minimum division value of 1 mm to measure the
length or width. Use the maximum difference between all measured values and
nominal values of length or width as the test result.
7.5.5 Warpage
Place the concave surface of the panel upwards on the horizontal platform flatly,
use a 1000 long steel ruler to stand laterally on the panel. Then use the steel
ruler which has the minimum division value of 0.5 mm to measure the maximum
gap height between the steel ruler and the panel. Use the maximum value of all
the measured values is used as the test result.
7.6 Coating performance
7.6.1 Coating thickness
It is performed in accordance with the provisions of GB/T 4957.The measuring
point shall include at least 5 places. four corners and center. Use the minimum
and arithmetic mean of all the measured values as the test results.
7.6.6 Resistance to impact
It is tested in accordance with the provisions of GB/T 1732.The weight of the
impact hammer is 1 kg, the diameter of the punch is 12.7 mm, the decorative
surface of the test piece is facing upwards.
7.7 Physical and mechanical properties
7.7.1 Bending strength, flexural modulus of elasticity
7.8 Combustion performance
The calorific value of combustion of the core material is carried out in
accordance with the provisions of GB/T 14402.The test piece of core material
can be peeled off from the panels for curtain wall, the surface shall not have an
adhesive film. Take the arithmetic mean of all the test values of the test pieces
as the test results.
8 Inspection rules
8.1 Inspection category
Product inspection is divided into two types. exit-factory inspection and type
inspection.
8.2 Inspection conditions and inspection items
8.2.1 Each batch of products shall be subject to exit-factory inspection. The exit-
8.3 Group-batch and sampling
8.3.1 Group-batch
Use 3000 m2 continuously-produced products of the same variety, the same
specification and the same color as a batch, those less than 3000 m2 is
considered as a batch.
8.3.2 Sampling
8.4 Decision rules
When the test results all meet the requirements of the standard indicators, the
batch of products is judged to be qualified. If there is any unqualified item, it
may double the sample from this batch of products to make re-inspection of the
unqualified items. If all the re-inspection results reach the standard
requirements, this batch of products are judged as qualified; otherwise this
batch of products are judged to be unqualified.
9 Marking, packaging, transportation, storage and accompanying documents
9.1 Marking
9.1.1 Each product shall be marked with the product marking, production or
installation direction, name and address of factory, trademark, color, batch
number, production date, implemented standard, and quality inspection
qualified mark.
9.1.2 The product’s packaging marking shall comply with the provisions of GB/T
191 and GB/T 6388.The eye-catching portion of the package shall have the
following marks.
9.2 Packaging
9.3 Transportation
It shall be handled gently during transportation and handling, it shall not be
thrown, to prevent product damage.
9.4 Storage
Products shall be stored in a dry and ventilated place in accordance with the
variety, specifications and colors, to avoid high-temperature and sun & rain
exposure, to prevent surface scratches.
9.5 Accompanying documents
9.5.1 The supplier shall provide the purchaser with an application guide to guide
the correct use of the product. The application guide can refer to Appendix C.
9.5.2 The supplier shall provide the product certificate to the purchaser. The
certificate shall contain the following contents.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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