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GB/T 17674-2021: Determination of nitrogen in crude oil - Boat-inlet chemiluminescence
Status: Valid GB/T 17674: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 17674-2021 | English | 199 |
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Determination of nitrogen in crude oil - Boat-inlet chemiluminescence
| Valid |
GB/T 17674-2021
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| GB/T 17674-2012 | English | 439 |
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Determination of nitrogen in crude oil by boat-inlet chemiluminescence
| Obsolete |
GB/T 17674-2012
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| GB/T 17674-1999 | English | 359 |
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Determination of nitrogen in petroleum and petroleum products by chemiluminescence method
| Obsolete |
GB/T 17674-1999
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PDF similar to GB/T 17674-2021
Standard similar to GB/T 17674-2021 GB/T 26982 GB 36170 GB/T 18606 GB/T 11059 Basic data | Standard ID | GB/T 17674-2021 (GB/T17674-2021) | | Description (Translated English) | Determination of nitrogen in crude oil - Boat-inlet chemiluminescence | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E21 | | Word Count Estimation | 9,998 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 17674-2021: Determination of nitrogen in crude oil - Boat-inlet chemiluminescence---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.
Determination of nitrogen in crude oil -- Boat-inlet chemiluminescence
ICS 75:040
CCSE21
National Standards of People's Republic of China
Replaces GB/T 17674-2012
Determination of nitrogen content in crude oil
boat injection chemiluminescence method
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
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"
drafted:
This document replaces GB/T 17674-2012 "Determination of nitrogen content in crude oil by boat injection chemiluminescence method", and GB/T 17674-
Compared with:2012, except for structural adjustment and editorial changes, the main technical changes are as follows:
--- Changed the units of mass fraction and mass concentration (see Chapter 1, 6:7, 9:1, 9:5, 10:1, 11:1, 11:2,:2012 edition of
Chapter 1, 5:6, 8:1, 8:5, 9:1, 10:1, 10:2, 10:3);
--- Changed Figure 1 to Figure 3 (see Figure 1 to Figure 3, Figure 1 to Figure 3 of the:2012 edition);
--- Added the content of the standard stock solution prepared by the quality method (see 6:7);
--- Added the description of subtracting blank solution (see 9:4, 10:5);
--- Change the dilution factor calculation formula [see formula (1) ~ formula (8), formula (1) ~ formula (4) in the:2012 edition];
--- Added instructions for use of quality control samples (see 13:1):
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed and managed by the National Petroleum and Natural Gas Standardization Technical Committee (SAC/TC355):
This document is drafted by: Daqing Oilfield Design Institute Co:, Ltd:, Petrochemical Research Institute of China National Petroleum Corporation, China
Petrochemical Research Institute of Petrochemical Co:, Ltd:, PetroChina Dushanzi Petrochemical Company, PetroChina Dalian Petrochemical Company:
The main drafters of this document: Song Shouguo, Ma Tianyi, Yang Fan, He Pei, Zhang Hanpei, Zhou Feng, Wu Mei, Dong Yuancheng, Han Ming:
This document was first published in:1999, and was revised for the first time in:2012: This is the second revision:
Determination of nitrogen content in crude oil
boat injection chemiluminescence method
Warning: Persons using this document should have practical experience in formal laboratory work: This document does not address all possible security issues:
It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the conditions stipulated by relevant national regulations:
1 Scope
This document specifies a method for the determination of nitrogen content in crude oil by boat injection chemiluminescence method:
This document is applicable to the determination of crude oil with nitrogen content ranging from 40mg/kg to 10000mg/kg:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 1884 Laboratory Determination of Density of Crude Oil and Liquid Petroleum Products (Densitometer Method)
GB/T 4756 Petroleum liquid manual sampling method
GB/T 8929 Determination of Crude Oil Water Content Distillation Method
GB/T 27867 Petroleum liquid pipeline automatic sampling method
SH/T 0604 Determination of Density of Crude Oil and Petroleum Products (U-Shaped Vibrating Tube Method)
3 Terms and Definitions
There are no terms and definitions that need to be defined in this document:
4 Method overview
The diluted crude oil sample was injected into the sample boat at room temperature, and the sample boat was sent into the high-temperature combustion tube through the injector:
The element is oxidized into nitric oxide under oxygen-rich conditions, and nitric oxide is converted into excited state nitrogen dioxide in contact with ozone, and excited state nitrogen dioxide
The emitted light during decay is detected by a photomultiplier tube, and the nitrogen content in the sample is calculated from the measured signal value:
5 Instruments
5:1 The composition of the instrument mainly includes the following parts:
a) Boat sampling system: It can be sealed with the inlet of the combustion tube, and can be easily purged with inert gas: The sample boat is made of platinum or quartz:
To facilitate the injection of liquid samples, a small piece of quartz wool should be added to the sample boat: The boat injector should be able to completely feed the sample boat into combustion
The inlet section of the tube, and can be further pushed into the high temperature zone of the heating furnace, and the speed of feeding and removing should be controllable:
b) Burner tube: Made of quartz: The inlet should allow the sample boat to enter, with side tubes for the introduction of oxygen and carrier gas: oxidized
The space should be sufficient to ensure complete combustion of the specimen: A schematic diagram of a typical combustion tube structure is shown in Figures 1 to 3: With guaranteed precision
In addition, other structures of combustion tubes can also be used:
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