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GB/T 5096-2017: Test method for corrosiveness to copper from petroleum products by copper strip test
Status: Valid GB/T 5096: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5096-2017 | English | 359 |
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Test method for corrosiveness to copper from petroleum products by copper strip test
| Valid |
GB/T 5096-2017
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| GB/T 5096-1985 | English | 279 |
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Petroleum products. Corrosiveness to copper. Copper strip test
| Obsolete |
GB/T 5096-1985
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PDF similar to GB/T 5096-2017
Basic data | Standard ID | GB/T 5096-2017 (GB/T5096-2017) | | Description (Translated English) | Test method for corrosiveness to copper from petroleum products by copper strip test | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E30 | | Classification of International Standard | 75.080 | | Word Count Estimation | 18,139 | | Date of Issue | 2017-07-31 | | Date of Implementation | 2018-02-01 | | 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 5096-2017: Test method for corrosiveness to copper from petroleum products by copper strip test
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Test method for corrosiveness to copper from petroleum products by copper strip test
ICS 75.080
E30
National Standards of People's Republic of China
Replacing GB/T 5096-1985
Petroleum products - Copper corrosion test method
2017-07-31 Posted
2018-02-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Directory
Foreword Ⅲ
Introduction Ⅴ
1 Scope 1
2 Normative references 1
3 Method summary 1
4 equipment 1
5 Reagents and materials 5
6 copper corrosion standard swatch 5
7 sample 6
Preparation of 8 test pieces 6
9 Test Procedure 7
Judgment of results 8
11 precision 9
12 Test Report 10
Appendix A (Normative) Safety Warnings 11
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 5096-1985 "copper corrosion test method for petroleum products", this standard compared with GB/T 5096-1985, the main
The technical changes are as follows.
--- Chapter 2 to increase normative references;
--- In the instrument, the pressure vessel pressure limit has been modified, and increased pressure vessel size tolerance requirements; increase the test
Tube borosilicate glass material requirements, and clear the sample into the tube after the test tube height of the test bath made a more clear and
Specific provisions; temperature measurement device, the provisions of the temperature control accuracy can be ± 1 ℃ or higher accuracy of any temperature measurement device
Set; increase in line with GB/T 514-2005 in the GB -48 full dip thermometer use, and the mercury thermometer mercury column
Reveal the height of the bath medium surface from not more than 25mm revised to not more than 10mm; increase the tweezers and timer technology
See (see Chapter 4, 1985 edition Chapter 2);
--- In the reagents and materials, the washing solvent "sulfur-free hydrocarbon solvent" clear "sulfur content of less than 5mg/kg of hydrocarbon solvent";
Removal of SH0004 "solvent oil for rubber industry," the optional use of washing solvents; increase 00 or finer steel wool
(Cotton) for the initial surface of the copper plate polished; polishing material silicon carbide or alumina particle size markings were modified,
65μm sandpaper or emery cloth, the original particle size is "240 particle size", is revised as "P220", 105μm sand, the original particle size
No. 150, now amended as P150 (see 5.1, 5.2 and 5.5, 1985 version 2.2.1 and 2.2.3);
--- In the technical requirements of the copper, the quoted copper material standards by the "GB 466" accordingly revised as "GB/T 5231-2012";
Copper size increases the tolerance requirements; copper processing increased copper reusable, and when its surface pitting or deep scratches
But not according to the provisions of grinding process to remove, or deformation of copper surface, or when the size of the copper is no longer within the specified limits should be
Discard the contents of this piece of copper (see 5.3, 1985 version 2.2.2);
--- In the sampling, increase according to the relevant standard methods for sampling content; and increase the sample container recommended loading amount of the sample;
Amendments to the text (see Chapter 7, Chapter 5 of 1985) in the course of testing to avoid contact between copper sheet and water.
--- In the test piece preparation, the increase can be pre-polished good commercial copper test Note; and added in accordance with the provisions of the order not to use
The sameness and purpose of the polished specimen of the same size polished (see Chapter 8, 1985 edition Chapter 4);
--- In the test step, adding more than one sample at the same time when the test step; In the pressure vessel step, increase the car
Gasoline samples, optional pressure vessel steps to test the contents of the fuel oil and diesel samples, the increase can be used
100 ℃, 3h alternative test conditions; increased 37.8 ℃ vapor pressure greater than 80kPa car gasoline samples, if the test had
Cheng Chengzhong sample evaporation loss is more obvious, it is recommended to use pressure vessel steps to test the content of the lubricating oil sample test strip
Pieces, it is recommended to increase the test temperature from the original 120 ℃, 30 ℃ increase the test temperature increment, modified from 150 ℃ open
Start with a 5 ° C test in increments (see Chapter 9, 1985, Chapter 6).
--- In the judgment of the result, the difference between levels 2 and 3 of the multi-color, clear for the difference between 2c level and 3b level test results, and
The temperature at which the test piece was heat-treated was changed from "315 ° C to 370 ° C" to "340 ° C ± 40 ° C" (see 10.4.4
Version 7.4);
--- Increase the precision of the eleventh chapter, supplemented by the test tube step test the precision of gasoline samples; and pre-polished commodity copper
And hand-polished copper test results were compared;
--- A more detailed supplement to the content and format of the report (see Chapter 12, Chapter 9 of the 1985 edition);
--- Increase Appendix A "Safety Matters", given the methods involved in reagents, materials and samples of the safety warning content.
This standard by the National Petroleum Products and Lubricants Standardization Technical Committee (SAC/TC280) and focal point.
This standard drafting unit. China Petroleum and Chemical Corporation Petrochemical Research Institute.
Participated in the drafting of this standard. Sinopec Sales Co., Ltd. Oil Institute of Technology.
The main drafters of this standard. Yang Tingting, Zheng Yu, Dong Fang, Chen Jie, Wu Xiaodong, Zhang Fengquan, Liu Xinlu.
This standard replaces the standards previously issued as.
--- GB/T 5096-1985.
Introduction
Crude oil contains sulphide, most of which is removed during refining. However, some of the sulfide remaining in petroleum products may be
Corrosion on a variety of metals, and its corrosion is not necessarily directly related to the total sulfur content, the corrosion effects can be based on the sulfide
The type of learning varies. The copper corrosion test method can be used to evaluate the relative extent of copper corrosion produced by petroleum products.
Petroleum products - Copper corrosion test method
Warning --- personnel using this standard should have formal laboratory work experience. The use of this standard may involve some danger
Materials, equipment and operations, this standard does not indicate all possible safety issues. It is the user's responsibility to take appropriate safety and health measures
Shi, and ensure compliance with the conditions of the relevant state laws and regulations. See Chapter 1, Section 6.1 and Appendix A for specific safety precautions.
1 Scope
This standard specifies the test method for evaluating the extent of copper corrosion of petroleum products.
This standard applies to the determination of automotive gasoline, aviation gasoline, jet fuel, solvent oil, kerosene, diesel, distillate fuel oil, lubricants and natural
Gasoline or other hydrocarbons having a vapor pressure not greater than 124 kPa at 37.8 ° C.
Caution --- Some products, such as natural gas, have a higher vapor pressure than typical vapor pressures of motor gasoline or aviation gasoline, so special notes
Do not put pressure vessels containing natural vapor or other products of high vapor pressure in a 100 ° C bath. Vapor pressure exceeds 124kPa
The sample at 100 ℃ can produce a lot of pressure, will rupture the pressure vessel; so the vapor pressure exceeds 124kPa samples should be used
SH/T 0232 determination.
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.
Petroleum products - Test glass liquid thermometers - Technical conditions
GB/T 4756 Petroleum liquids - Manual sampling method
GB/T 5231-2012 processing of copper and copper alloy grades and chemical composition
Abrasives for coated abrasives - Particle size analysis - Part 1. Particle size composition GB/T 9258.1-2000
Petroleum liquid pipeline automatic sampling method
Liquefied petroleum gas - Copper corrosion test method
3 Method summary
A polished piece of copper immersed in a volume of the sample, according to the sample product category heated to the specified temperature, and maintain
A certain time. At the end of the heating cycle, the copper sheet was removed and, after washing, it was compared with a copper-etched standard color plate to evaluate discoloration of the copper sheet
Situation, determine the level of corrosion.
4 equipment
4.1 copper corrosion test pressure vessel
Stainless steel, the size shown in Figure 1, the container should be able to withstand 700kPa test gauge. As long as the internal dimensions of the container can be ensured as in Figure 1
The requirements are the same, as are the other design forms for the container lid and the elastomer seal. Pressure vessel internal dimensions should ensure that
Into a test tube having an outer diameter of 25 mm and a length of 150 mm.
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