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GB/T 13646-2013: Rubber -- Determination of bound styrene content -- Spectrophotometric method
Status: Valid GB/T 13646: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 13646-2013 | English | 209 |
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Rubber -- Determination of bound styrene content -- Spectrophotometric method
| Valid |
GB/T 13646-2013
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| GB/T 13646-1992 | English | 279 |
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Rubber--Determination of bound styrene content--Spectrophotometric method
| Obsolete |
GB/T 13646-1992
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PDF similar to GB/T 13646-2013
Basic data | Standard ID | GB/T 13646-2013 (GB/T13646-2013) | | Description (Translated English) | Rubber -- Determination of bound styrene content -- Spectrophotometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G40 | | Classification of International Standard | 83.060 | | Word Count Estimation | 9,911 | | Older Standard (superseded by this standard) | GB/T 13646-1992 | | Quoted Standard | GB/T 3516; GB/T 15340; GB/T 17783; ISO 4655 | | Adopted Standard | ISO 5478-2006, MOD | | Regulation (derived from) | National Standards Bulletin 2013 No. 10 | | 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 | | Summary | This standard specifies: Determination of styrene using a spectrophotometer butadiene rubber (SBR) styrene content methods. This standard applies to styrene homopolymer reinforcement styrene butadiene rubber, styrene content determination. This standard a | GB/T 13646-2013: Rubber -- Determination of bound styrene content -- Spectrophotometric method---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 bound styrene content. Spectrophotometric method
ICS 83.060
G40
National Standards of People's Republic of China
Replacing GB/T 13646-1992
Determination of styrene content of the rubber binding
(ISO 5478.2006, Rubber-Determinationofboundstyrenecontent-
Nitrationmethod, MOD)
Issued on. 2013-07-19
2013-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 13646-1992 "Rubber - Determination of bound styrene content spectrophotometry."
This standard compared with GB/T 13646-1992, the main technical differences are as follows.
--- Increasing the test range (1992 Edition Chapter 1, Chapter 1 of this edition);
--- Adjust the sampling procedure (see 62, 1992 version 7.1.);
--- Modify extract 10mL to 25mL (see 78, 1992 version 7.7.);
--- Modify the formula in the letter (see 91, 92, 1992 version 8.1, A.4..);
--- The "correction constant determination" into the text (see Chapter 8, 1992 edition of Appendix A);
--- To increase the "standard and ISO 5478.2006 as compared to structural changes" (see Appendix A);
--- To increase the "standard and ISO 5478.2006 technical differences and reasons" (see Appendix B).
This standard uses redrafted law revision of international standards ISO 5478.2006 "Rubber Determination of bound styrene content of nitrification
law".
This standard and ISO 5478.2006 as compared to the structure have more adjustment, given in Appendix A of this standard and ISO 5476.2006's
Reg number control list.
This standard and ISO 5478.2006 clause relates to the technical differences compared to already exist in the outside through the vertical position of the blank page
Singlet (︱) were marked, Appendix B gives a list of corresponding technical differences and their causes.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the national Common test methods for rubber and rubber goods Technical Committee of Standardization Technical Committee (SAC/TC35/SC2)
Centralized.
This standard drafting unit. China Petrochemical Research Institute Co., Ltd. Gas Oil, Triangle Tyre Co., Ltd., China Stone
Oil and Natural Gas Company Dushanzi Petrochemical Company Institute, National Rubber and Latex Products Quality Supervision and Inspection Center, Qingdao Yike Si
New Materials Co., Ltd., Beijing Rubber Industry Research and Design Institute.
The main drafters of this standard. Fang Fang, Wu Yi, Ni Shujie, YAN Fu Jiang, Sun Feng, Zhangjiang Feng, Bixue Rui, Zeng Tao, Li Luan, Wu Guoxu,
Xie Junfang.
This standard replaces the standards previously issued as follows.
--- GB/T 13646-1992.
Determination of styrene content of the rubber binding
Spectrophotometry
1 Scope
This standard specifies the determination of styrene with a spectrophotometer - method butadiene rubber (SBR) styrene content.
This standard applies to styrene homopolymer reinforced styrene - Determination of styrene butadiene rubber content.
Determination of styrene content This standard applies to a styrene content of not more than 50% (by mass) of the block copolymer.
This standard applies to SBR and other polymers (NR, BR, IR and CR) blends vulcanized rubber. If known SBR blend of benzene
Ethylene content, and the remaining component styrene-free, you can use this method to estimate the content of SBR rubber blend.
In any other non-absorbent material extracted aromatic specific spectral region, it will interfere with the determination results of this method.
When the rubber compound is insoluble in nitric acid inorganic filler than 5% (mass fraction), lower results obtained by the present method.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 3516 rubber solvent extraction of the test substance (GB/T 3516-2006, ISO 1407.1992, MOD)
GB/T 15340 natural, synthetic rubber raw sampling and sample preparation method (GB/T 15340-2008, ISO 1795.2000, IDT)
GB/T 17783 vulcanized rubber sample preparation and chemical test samples (GB/T 17783-1999, ISO 4661-2. 1987,
IDT)
ISO 4655 reinforced SBR rubber --- --- binding assay overall styrene content (Rubber-Reinforcedstyrene-
butadienelatex-Determinationoftotalboundstyrenecontent)
Principle 3
3.1 Sample extraction with acetone, with nitration, oxidation of styrene p-nitrobenzoic acid.
3.2 nitrobenzoic acid and extracted with ether.
3.3 with sodium hydroxide solution will nitrobenzoic acid was extracted from ether out, measuring the absorbance in the UV spectral region.
4 Reagents and materials
4.1 Analysis should use analytical reagent and distilled water or equivalent purity.
WARNING. Because the following operation, inevitably there is a possibility that compromise health and safety. Therefore, when using acetic acid and
When the ether, should comply with recognized health and safety precautions. Extraction should be in a suitable fume hood, and you want to wear goggles when operating.
Nitric acid 4.2, ρ = 1.43g/mL.
Use fresh nitric acid, nitric acid nitrification Chen effect is poor.
4.3 Sodium hydroxide solution. c (NaOH) = 5mol/L.
200g of sodium hydroxide dissolved in water and diluted to 1000mL.
4.4 Sodium hydroxide solution. c (NaOH) = 0.1mol/L.
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