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GB/T 23801-2021: Determination of fatty acid methyl ester(FAME) content in middle distillates - Infrared spectrometry
Status: Valid GB/T 23801: Evolution and historical versions
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| GB/T 23801-2021 | English | 219 |
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Determination of fatty acid methyl ester(FAME) content in middle distillates - Infrared spectrometry
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GB/T 23801-2021
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| GB/T 23801-2009 | English | 319 |
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Determination of fatty acid methyl esters (FAME) in middle distillates by infrared spectroscopy method
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GB/T 23801-2009
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PDF similar to GB/T 23801-2021
Standard similar to GB/T 23801-2021 GB/T 23799 GB 25199 GB 19147 GB/T 22030 Basic data | Standard ID | GB/T 23801-2021 (GB/T23801-2021) | | Description (Translated English) | Determination of fatty acid methyl ester(FAME) content in middle distillates - Infrared spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E31 | | Word Count Estimation | 11,193 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 23801-2021: Determination of fatty acid methyl ester(FAME) content in middle distillates - Infrared spectrometry
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Determination of fatty acid methyl ester(FAME) content in middle distillates - Infrared spectrometry
ICS 75.160.20
CCSE31
National Standards of People's Republic of China
Replace GB/T 23801-2009
Determination of Fatty Acid Methyl Ester in Middle Distillate Oil
Infrared spectroscopy
Released on 2021-10-11
2022-05-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 23801-2009 "Determination of Fatty Acid Methyl Ester Content in Middle Distillate Oil by Infrared Spectroscopy", and
Compared with GB/T 23801-2009, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Change "FAME volume fraction is about 1.7%~22.7%" in the range to. "FAME volume fraction is about 0.05%~
50%" (see Chapter 1, Chapter 1 of the.2009 edition);
b) The normative reference documents GB/T 27867 and GB 25199-2017 were added, and the reference documents EN14103.2003 and
GB/T 20828 (see Chapter 2, Chapter 2 of the.2009 edition);
c) A chapter "Terms and Definitions" has been added (see Chapter 3);
d) Added and changed the method summary content (see Chapter 4, Chapter 3 of the.2009 edition);
e) The contents of reagents and materials have been changed (see Chapter 5, Chapter 4 of the.2009 edition);
f) The technical parameters of the infrared spectrometer and the content of the sample cell materials have been added and supplemented (see Chapter 6, Chapter 5 of the.2009 edition);
g) Part of the test procedure is detailed and supplemented (see Chapter 8, Chapter 7 of the.2009 edition);
h) The calculation content has been changed and added (see Chapter 9, Chapter 8 of the.2009 edition);
i) Added the content of the result presentation (see Chapter 10, Chapter 9 of the.2009 edition);
j) Re-specified precision (see Chapter 11, Chapter 10 of the.2009 edition);
k) An informative appendix "Optical path and dilution factor reference" has been added, and the diagram has been modified accordingly (see Appendix A).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed and managed by the National Petroleum Products and Lubricants Standardization Technical Committee (SAC/TC280).
Drafting organizations of this document. China Petroleum & Chemical Corporation Research Institute of Petrochemical Technology, China National Petroleum Corporation
Petrochemical Research Institute, Shenzhen Institute of Metrology and Quality Inspection, Yunnan Institute of Product Quality Supervision and Inspection.
The main drafters of this document. Yang Yurui, Xu Guangtong, Liu Dan, An Mi, Sun Yuechao, Liao Jia, Zhao Rui.
This document was first published in.2009, and this is the first revision.
Determination of Fatty Acid Methyl Ester in Middle Distillate Oil
Infrared spectroscopy
Warning---The personnel using this document should have practical experience in formal laboratory work. The use of this document may involve certain dangerous
For dangerous materials, equipment and operations, this document does not point out all possible safety issues. The user is responsible for taking appropriate safety and health measures
And ensure compliance with the conditions stipulated by relevant national laws and regulations.
1 Scope
This document describes a method for determining the volume fraction of fatty acid methyl esters (FAME) in middle distillates by infrared spectroscopy.
This document is applicable to the determination of FAME samples that meet the requirements of Appendix C of GB 25199-2017.Suitable for determination of FAME
A sample of middle distillate oil with a volume fraction of 0.05% to 50%. For samples with FAME volume fraction exceeding 50%, it can also be used after dilution
This method is used for determination, but its precision has not been investigated. If it contains interfering components such as esters and carbonyl-containing compounds, the result of the measurement may be
On the high side.
Note. If the mass concentration (g/L) is converted into volume fraction, the density of FAME adopts a fixed value of 883.0kg/m3.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 4756 Manual sampling method for petroleum liquids
GB 25199-2017 B5 diesel
GB/T 27867 Petroleum liquid pipeline automatic sampling method
3 Terms and definitions
There are no terms and definitions that need to be defined in this document.
4 Method summary
Measure the infrared spectrum of the sample, if necessary, dilute the sample with a FAME-free solvent to a suitable concentration, and read 1745cm-1±
The maximum absorbance value of the ester-based band in the range of 5cm-1, and the FAME content in the sample is calculated according to the established calibration curve. accessible
The density of FAME (883.0kg/m3) converts mass concentration (g/L) into volume fraction (%).
Different measurement ranges and corresponding dilution multiples should be selected for the FAME concentration range of different samples. It is advisable to choose as far as possible without dilution
The measurement method of receiving the sample, such as the sample in the range A adopts a long optical path sample cell or the sample in the range B adopts a short optical path sample cell. For
To obtain good measurement precision, the lower the concentration of FAME in the sample, the more strict the measurement process needs to be controlled.
5 Reagents and materials
Unless otherwise specified, all chemical reagents used in the test have a purity of not less than 99%.
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