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GB/T 19390-2003 English PDF (GBT19390-2003)

GB/T 19390-2003 English PDF (GBT19390-2003)

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GB/T 19390-2003: Dipped polyester cord fabric for tyres

This Standard specifies the terms and definitions, product classification and specifications, technical requirements, test condition, regulation on batching product and preparation method of samples, test method of physicochemical property, inspection method of tissue specifications and exterior quality, business settlement quality and inspection rules, and the requirements on packaging, marking, certificate of guarantee of quality, transportation and storage of dipped polyester cord fabric for tyres. This Standard applies to the quality appraisal and acceptance of dipped polyester cord fabric for tyres.
GB/T 19390-2003
ICS 59.100.99
G 41
NATIONAL STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
Dipped polyester cord fabric for tyres
ISSUED ON. NOVEMBER 10, 2003
IMPLEMENTED ON. JUNE 01, 2004
Issued by.
General Administration of Quality Supervision, Inspection
and Quarantine of the PEOPLE Republic of China;
Standardization Administration of the PEOPLE Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Product classification and specifications ... 7
5 Technical requirements ... 9
6 Test conditions, product batch requirements and sample preparation methods 12 7 Physicochemical property test methods ... 14
8 Test methods of tissue specifications and appearance quality ... 28
9 Business settlement weight and inspection rules ... 28
10 Packaging, marking, quality certificate, transportation and storage ... 29 Annex A ... 32
Annex B... 35
Annex C ... 40
Foreword
Test method and test condition of product physicochemical property in this Standard correspond to the standard BISFA International Bureau for the Standardization of Man-Made Fibers - 1995 version of Internationally Agreed Test Method for Polyester Filament Yarn (English version) issued by BISFA; this Standard is not equivalent to the standard BISFA - 1995 version of Internationally Agreed Test Method for Polyester Filament Yarn (English version).
According to the product characteristics of cord fabric for tyre and industry practice, when adopting the BISFA 1995 Standard, this Standard adds four clauses; technically modifies the terms which do not fully apply to the cord fabric for tyre; and deletes the terms which do not completely apply to cord fabric for tyre. The relevant technical differences have been incorporated into the text, and the relevant terms have been marked on the margin of the page with single vertical line. For comparison, Annex A and Annex B list the comparison of terms of this Standard and the terms of the international standard, these technical differences and the reasons for reference.
The part of product of this Standard is developed with reference to technical indicators for same kind of products in developed foreign countries, and combined with the domestic relevant data accumulated over the years, product technical indicators and the fiber framework materials requirements for tyres in enterprise standards.
In this Standard, Annex A, Annex B and Annex C are informative Annexes. This Standard is proposed by China Petroleum and Chemical Industry Association. This Standard is under the jurisdiction of the China National Technical Committee For Standardization of Tyres and Rims.
This Standard shall be explained by the China National Technical Committee For Standardization of Tyres and Rims.
The tissue s responsible for drafting this Standard are. Beijing Research and Design Institute of Rubber Industry, Liaoyang Yundi New Materials Co., Ltd. and Weifang Dalong Chemical Fiber Co., Ltd.
The main drafters of this Standard include. Gao Chenyi, Tang Wei and Zhou Limin. Dipped polyester cord fabric for tyres
1 Scope
This Standard specifies the terms and definitions, product classification and specifications, technical requirements, test condition, regulation on batching product and preparation method of samples, test method of physicochemical property, inspection method of tissue specifications and exterior quality, business settlement quality and inspection rules, and the requirements on packaging, marking, certificate of guarantee of quality, transportation and storage of dipped polyester cord fabric for tyres.
This Standard applies to the quality appraisal and acceptance of dipped polyester cord fabric for tyres.
2 Normative references
The articles contained in the following documents have become part of this Standard when they are quoted herein. For the dated documents so quoted, all the modifications (excluding corrections) or revisions made thereafter shall not be applicable to this Standard. For the undated documents so quoted, the latest editions shall be applicable to this Standard.
GB/T 2942 Rubber vulcanized - Determination of static adhesion to textile cord - H-pull test (GB/T 2942-1991, eqv ISO 4647. 1982)
GB/T 3291.1~3291.3 Textiles - Terms of textile material properties and test GB/T 4667-1995 Textiles - Woven fabrics - Measurement of width of pieces (eqv ISO 3932. 1976)
GB/T 4668-1995 Textiles - Woven fabrics - Determination of number of threads per unit length (neq ISO 7211-2. 1984)
GB 6529 Standard atmospheres for textiles conditioning and testing (GB 6529-1986, neq ISO 139. 1973)
The net weight of the dipped cord fabric obtained after deducting the weight of all packaging from the cord fabric cloth roll weight when leaving the dipping equipment. 4 Product classification and specifications
4.1 The dipped polyester cord fabric can be divided into common type and stable-dimension type (high modulus, and low shrinkage) based on the physicochemical properties (mainly refer to the dimensional stability).
4.2 According to the warp count and the number of strands, the common type of dipped polyester cord fabric can be divided into.
1100dtex/2, 1100dtex/3, 1440dtex/2, 1440dtex/3, 1670dtex/2, 1670dtex/3, 2200dtex/2 and 2500dtex/2, total of 8 specifications.
4.3 According to the warp count and the number of strands, the stable-dimension type of dipped polyester cord fabric can be divided into.
1100dtex/2, 1100dtex/3, 1440dtex/2, 1670dtcx/2 and 2200dtex/2, total of 5 specifications. 4.4 Each specifications of dipped polyester cord fabric can be divided into 1 to 3 kinds of tissue structures (see Table 1) based on the different warp count. The common type and stable-dimension type of dipped polyester cord fabric have 16 and 13 kinds of tissue specifications respectively.
requirements.
- With charting apparatus or data processing and printing device;
- Display error of tension shall be not more than ?? 0.5% of full-range load; - Display error of elongation shall be not more than ?? 1% of recorded value of elongation; - Id there is different tension ranges, it shall enable breaking strength of sample to be in 20% - 90% of the range;
- Equipped with pneumatic clamp which can give pressure compensation to samples. The jaw of pneumatic clamp shall be steel plane without pad, jaw pressure shall ensure that the sample cannot be slipped in the jaw, and it cannot be damaged resulting in fracture in the jaw.
7.1.3 Sample quality
20 pieces.
7.1.4 Test conditions
Gauge length. (250?? 1) mm;
Tensile speed. (300?? 5) mm/min.
7.1.5 Operational procedure
7.1.5.1 CALIBRATE gauge length and tensile speed of tensile testing machine, MAKE them to meet the requirements specified in 7.1.4 respectively.
7.1.5.2 ADJUST the display apparatus of tension and elongation of tensile testing machine, LET the displayed values of tension and elongation to be zero under non-working stable status of tensile testing machine.
7.1.5.3 For tensile testing machine equipped with a recorder, ADJUST the position of recorder pen point, LET the recorder pen point directly align to the baseline of recording paper under non-working stable status of tensile testing machine.
7.1.5.4 SELECT the appropriate tension range according to sample size, SET the data content to be printed as required.
7.1.5.5 TAKE a sample from the sample holder in 6.2.3, PUT one end into the stationary clamp, PUT the other end into the movable clamp, and CLIP the sample firmly, then APPLY pretension on sample according to the provisions in Table 6.
scope of 20% to 90% of some range;
C.5.2 TAKE down one sample from the sample holder in 6.2.3, PUT one end into a fixed champ and CLIP the sample tightly, then PUT the other end into a movable sample and CLIP the it tightly only after applying the specified pre-tension in Table 6 to sample; C.5.3 START the lower champ, and STRETCH the sample until it is broken. The recorder shall draw the force - elongation curve during the whole stretching process; C.5.4 REPEAT the above operations for each sample until all samples are tested; C.5.5 READ the breaking force (i.e., tensile peak) of each sample and the corresponding breaking elongation and elongation at specified load from the force - elongation curve. If the tension tester is equipped with a data display device, READ the breaking force (i.e., tensile peak) of each sample and the corresponding breaking elongation (rate) and elongation (rate) at specified load from this device. C.6 Calculation
According to the data obtained from the C.5.5 and according to the formulas from Formula (1) to Formula (3) in 7.1.6, CALCULATE the breaking force, breaking elong...

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