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GB/T 4498.2-2017: Rubber -- Determination of ash -- Part 2: Thermogravimetric analysis
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4498.2-2017 | English | 199 |
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Rubber -- Determination of ash -- Part 2: Thermogravimetric analysis
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GB/T 4498.2-2017
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Basic data | Standard ID | GB/T 4498.2-2017 (GB/T4498.2-2017) | | Description (Translated English) | Rubber -- Determination of ash -- Part 2: Thermogravimetric analysis | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G40 | | Classification of International Standard | 83.060 | | Word Count Estimation | 10,165 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 4498.2-2017: Rubber -- Determination of ash -- Part 2: Thermogravimetric analysis---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Rubber-Determination of ash-Part 2. Thermogravimetric analysis
ICS 83.060
G40
National Standards of People's Republic of China
Determination of rubber ash
Part 2. TGA
Posted.2017-11-01
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 4498 "Determination of rubber ash" is divided into two parts.
--- Part 1. Muffle furnace;
--- Part 2. TGA.
This section GB/T 4498 Part 2.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by China Petroleum and Chemical Industry Federation.
This part of the National Rubber and Rubber Products Standardization Technical Committee (SAC/TC35) centralized.
This part of the drafting unit. PetroChina Institute of Petrochemical Research, Chinese Academy of Tropical Agricultural Sciences, agricultural products processing
Institute, PetroChina Dushanzi Petrochemical Company, Yee Yi Yue Rubber Research Institute Co., Ltd., China Petrochemical
Co., Ltd. Beijing Institute of Beijing Yanshan Branch, Xishuangbanna Prefecture Quality and Technical Supervision Comprehensive Testing Center, Guizhou Tire Co., Ltd.,
Guangzhou Institute of Synthetic Materials Co., Ltd.
The main drafters of this section. Li Xiaoyin, Yang Fang, Lu Mingzhe, Jia Huiqing, Wu Yi, Zhai Yueqin, Sun Feng, Wei Yuli, Ding Zhaojuan,
Zhao Xia, Lu Qiang, Yang Hongling.
Determination of rubber ash
Part 2. TGA
Warning --- personnel using this section should have formal laboratory work experience. This section does not indicate all possible safety issues
question. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the requirements of the relevant state laws and regulations.
1 Scope
This section GB/T 4498 specifies the use of thermogravimetric analyzer (TGA) Determination of raw rubber, rubber and vulcanized rubber ash two
method.
This section applies to GB/T 5576 provisions of the M, O, R and U raw rubber, rubber and vulcanized rubber ash determination.
--- Method A for measuring raw rubber.
--- Method B for the determination of rubber and vulcanized rubber.
This section does not include to explain the rubber compound or vulcanized rubber in the inorganic chemical composition and ash.
Note that these two methods do not always give the same result.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 5576 rubber and latex nomenclature
GB/T 15340 natural, synthetic raw gum sampling and sample preparation methods
GB/T 17783 vulcanized rubber samples and the preparation of the sample --- chemical test
Determination of volatiles content of raw rubber GB/T 24131-2009
3 principle
The known quality of the rubber sample heated under nitrogen decomposition, to be completely decomposed after the sample, switch to oxygen or air, continue heating
Until the carbonaceous material is completely burnt out and reaches a constant weight, the mass of the residue is the mass of ash.
4 Reagents or materials
4.1 Nitrogen gas Purity ≥ 99.99% (volume fraction).
4.2 Oxygen. Purity ≥ 99.99% (volume fraction), or air.
5 equipment
5.1 Thermogravimetric Analyzer, including the following components.
a) hot balance;
b) heating furnace;
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