GB/T 17470-2007 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 17470-2007 | English | 90 |
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Glass fiber mats -- Chopped strand and continuous filament mats
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| GB/T 17470-1998 | English | 359 |
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Glass fiber chopped strand mat
| Obsolete |
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GB/T 17470-2007: Glass fiber mats -- Chopped strand and continuous filament mats---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/GBT17470-2007
GB
NATIONAL STANDARD
ICS 59.100.10
Q 36
Replacing GB/T 17470-1998
Glass Fiber Mats - Chopped Strand and
Continuous Filament Mats
Issued on. MARCH 26, 2007
Implemented on. OCTOBER 1, 2007
Jointly Issued by. General Administration of Quality Supervision,
Inspection and Quarantine;
Standardization Administration of the People's
Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Classification and Designation... 5
4 Product Specifications... 6
5 Requirements... 7
6 Test Methods... 10
7 Inspection Rules... 12
8 Marking, Packaging, Transportation and Storage... 13
Appendix A... 15
Appendix B... 18
Foreword
This Standard makes reference to EN 14118.2003 "Reinforcement - Specifications for
Textile Glass Mats (Chopped Strand and Continuous Filament Mats)".
This Standard replaces GB/T 17470-1998 "Glass Fiber Chopped Strand Mat".
Compared with GB/T 17470-1998, the main changes in this Standard are as follows.
— The standard name was changed;
— Product specification and variety were added; and the scope of application was
expanded;
— The requirements of grading and classification of products were deleted;
— The requirements of the mass (weigh) of mat roll were deleted;
— The requirements of hand lay-up molding were added;
— Appendix B (Normative) “Determination of Width of Glass Fiber Mat” was added;
— Technical index of some items was increased.
Appendixes A and B in this Standard are normative.
This Standard was proposed by the China Building Material Industry Association.
This Standard shall be under the jurisdiction of the National Technical Committee 245
on Glass Fiber of Standardization Administration of China (SAC/TC 245).
Drafting organizations of this Standard. Nanjing Fiberglass Research & Design
Institute, Owens Corning (China) Investment Co., Ltd., Changzhou Tianma Group Co.,
Ltd. (Building Materials No. 253 Plant), HeBei Jinniu Energy Resources Co., Ltd. Glass
Fiber Branch, Taishan Fiberglass Inc., and Jushi Group Co., Ltd.
Participating drafting organizations of this Standard. Chongqing International
Composites Co., Ltd., Nanjing TianMing Fiberglass Products Co., Ltd., and Danyang
Zhongya Fiberglass Products Co., Ltd.
Chief drafting staffs of this Standard. Wang Yumei, Chen Shang, Fang Yunwei, Shi
Zhuo, and Gao Xudong.
The previous edition replaced by this Standard is as follows.
— GB/T 17470-1998.
Glass Fiber Mats - Chopped Strand and
Continuous Filament Mats
1 Scope
This Standard specifies the classification and code, product specification,
requirements, test methods, inspection rules, marking, packaging, transportation, and
storage of chopped strand and continuous filament mats (hereinafter referred to as
“mats”) made from glass fiber.
This Standard is applicable to chopped strand mats made from glass fiber (hereinafter
referred to as "chopped strand mats") and continuous filament mats made from glass
fiber (hereinafter referred to as "continuous filament mats") used for the reinforcement
of plastics and hydraulic matrices. It may also be applicable to glass fiber continuous
monofilament mats and punched mats.
This Standard is not applicable to stitched bonded mats and veils made from glass
fiber, nor to glass fiber mats used for thermal and sound insulation.
2 Normative References
The following normative documents contain provisions which, through reference in this
text, constitute provisions of this Standard. For dated references, the subsequent
amendments or revisions of these publications do not apply. However, parties who
enter into an agreement based on this Standard are encouraged to investigate the
possibility of applying the most recent editions of the normative documents indicated
below. For undated references, the latest edition of the normative document referred
to applies.
GB/T 191 Packaging — Pictorial marking for handling of goods
GB/T 1449 Fiber-reinforced plastic composites — Determination of flexural
properties
GB/T 1549 Methods of chemical analysis of soda-lime-alumina and borosilicate
glass
GB/T 6006.1 Test method for glass mats — Part 1.Determination of styrene
solubility
GB/T 6006.2 Test method for glass mats — Part 2.Determination of tensile
breaking force
GB/T 7193.1 Unsaturated polyester resin determination of viscosity
3 Classification and Designation
3.1 Product classification
According to their composition, glass is divided into three categories. non alkali glass,
middle alkali glass, and E-CR glass.
3.2 Product designation
Designation for mats includes the following elements.
4 Product Specifications
4.1 Chopped strand mat
Typical specification of chopped strand mat is shown in Table 1.
4.2 Continuous filament mat
Typical specification of continuous filament mat is shown in Table 2.
5 Requirements
5.1 Physiochemical properties
5.1.1 Alkali oxide content
It shall meet the following requirements.
5.1.4 Water content
For the mats with powder binder, the water content shall not be greater than 0.20 %;
for the mats with emulsion binder, the water content shall not be greater than 0.50 %.
5.1.5 Tensile breaking strength
5.1.6 Cinnamene solvability
Cinnamene solvability of chopped strand mat shall be in accordance with those
specified in Table 6.
5.1.7 Bending strength of laminated wood
Bending strength of laminated wood made from glass fiber mats and resins shall be in
accordance with those specified in Table 7.Unless otherwise specified by the
manufacturer, laminated wood shall be made from multipurpose unsaturated polyester
resin.
5.2 Appearance quality
5.2.1 The edge of mat roll shall be straight and even, and roll shall be tight and
uniform.
5.2.2 The mat surface shall be free from any defect of slit, pore space, stain, oil stain,
sundries, strand clews, bad-dispersed binder, rare faction of partial strands, partial
poor bond and anomalistic edges, which may affect the application of mat.
6 Test Methods
6.1 Alkali oxide content
In accordance with those specified in GB/T 1549.
6.2 Mass per unit area
It shall be determined in accordance with those specified in GB/T 9914.3 to obtain
each individual testing value; and the mean of tolerance and individual tolerance can
be calculated respectively by Equations (1) and (2).
6.3 Combustible content
In accordance with the requirements of GB/T 3453.
6.4 Water content
In accordance with the requirements of GB/T 9914.1.
6.5 Tensile breaking strength
In accordance with the requirements of GB/T 6006.2.
6.10 Width
If the both edges are finished edge, measured it by the steel tape with a precision of 1
mm. Measurement shall be carried out along the external surface of mat roll and
parallel to the roller. Measure three times with mat distributed uniformly; and calculate
the mean value of measurement result.
6.11 Appearance quality
Visual inspection on production lines.
7 Inspection Rules
7.1 Exit-factory inspection and type inspection
7.1.1 Exit-factory inspection
The products shall be carried out with exit-factory inspection before leaving the factory.
Exit-factory inspection items shall include. mass per unit area, combustible content,
tensile break strength, width, water content and appearance quality.
7.2 Batching and sampling
7.3 Judgment rules
7.3.1 Judgement shall be carried out depending on the rounding value of mean of
test results of unit product. If all single items of unit product meet the requirements of
5.1 and 5.2, then this unit product shall be judged as qualified; otherwise, it is judged
as unqualified.
8 Marking, Packaging, Transportation and Storage
8.1 Markings
8.1.1 Product markings shall include.
8.1.2 Product marking shall be indicated on the packaging, or provide the relevant
information to the user in advance.
8.2 Packaging
8.2.1 The product shall be winded on the cardboard tube with an external diameter
not less than 76 mm; and sealed with moisture-proof materials. Ensure to avoid
moisture and damage in the process of movement, storage and transportation.
8.2.2 External surface of packaging shall include.
8.3 Transportation
Transportation of product shall be dry and covered; and mechanical damage, direct
sunlight and moisture shall be avoided during transportation.
8.4 Storage
Product shall be stored in dry and ventilated room. Keep out of direct sunlight and heat
source. Stacking height shall be up to the mustard.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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