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GB/T 29649-2013: Determining the biobased content of biobased materials -- Liquid scintillation counters (LSC) method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 29649-2013 | English | 189 |
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Determining the biobased content of biobased materials -- Liquid scintillation counters (LSC) method
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GB/T 29649-2013
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Basic data | Standard ID | GB/T 29649-2013 (GB/T29649-2013) | | Description (Translated English) | Determining the biobased content of biobased materials -- Liquid scintillation counters (LSC) method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G31 | | Classification of International Standard | 83.080.01 | | Word Count Estimation | 8,830 | | Quoted Standard | ISO 8245-1999 | | Regulation (derived from) | National Standards Bulletin 2013 No. 17 | | 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: the use of a liquid scintillation counter measuring bio-based materials in bio-based content instruments and reagents, test procedures and results of calculations. This standard applies to: bio-based materials such as bio-based pl | GB/T 29649-2013: Determining the biobased content of biobased materials -- Liquid scintillation counters (LSC) method
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Determining the biobased content of biobased materials. Liquid scintillation counters (LSC) method
ICS 83.080.01
G31
National Standards of People's Republic of China
Determination of bio-based materials in bio-based content
Liquid scintillation counter method
Liquidscintilationcounters (LSC) method
Issued on. 2013-09-06
2014-01-31 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 was proposed by the National Standardization Management Committee.
This standard by the national bio-based materials and their degradation products Standardization Technical Committee (SAC/TC380) centralized.
This standard was drafted. Wuhan Huali Environmental Technology Co., Ltd., light plastic processing Institute of Applied Technology and Business University Beijing, Shenzhen
Good Plastics Co., Ltd., National Plastic Products Quality Supervision and Inspection Center (Beijing), Sichuan University.
The main drafters of this standard. Wengyun Xuan, Zhang Libin, White Juan, Zheng Hong standard, Jinyu Juan, Wang Yuzhong.
Determination of bio-based materials in bio-based content
Liquid scintillation counter method
1 Scope
This standard specifies the use of a liquid scintillation counter measuring bio-based materials in bio-based content of instruments and reagents, test procedures and results of calculations.
This standard applies to bio-based materials such as bio-based plastics, and organic carbon in these materials can be oxidized to carbon dioxide gas.
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.
ISO 8245.1999 Quality of total organic carbon (TOC) and dissolved organic carbon (DOC) Guidelines for the determination [Waterquality-
Guidelinesforthedeterminationoftotalorganiccarbon (TOC) anddissolvedorganiccarbon (DOC)]
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Bio-based materials biobasedmaterial
The use of biomass as a feedstock in the manufacture of new materials and chemicals, including bio-based plastics, bio-based chemicals, sugar, engineering products, and
Renewable biological resources such as grains, legumes, cotton and straw and wood cellulose and other biomass as a raw material or plastic composite materials.
3.2
Fossil carbon fossilcarbon
Substantially free of radioactive carbon-carbon, which is much larger than the half-life of 14C ages (5730 years).
3.3
Modern carbon moderncarbon
Modern carbon. 1959 International Conference confirmed the US National Bureau of Standards developed by oxalic acid (SRM4990b) as the standard modern carbon
Quality, and its 1950 95% of the radioactivity of carbon as a modern standard radioactivity.
3.4
Biobased Content biobasedcontent
Organic carbon per gram of sample radioactivity and modern carbon per gram of organic carbon in the reference material radioactivity ratio percentage. Meaning it represents
Si sample is the percentage of renewable resources of modern organic carbon total organic carbon, rather than a percentage of the total mass of the sample.
3.5
The efficiency of counting efficiency
The number of observations or measurements to count the results of the measurement period and the occurrence of decay activity rates, expressed as a percentage.
Principle 4
Upon the death of a living organism, it will stop the intake of new carbon. All organisms died twelve carbon isotope (12C) and Radiocarbon apposition
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