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GB/T 25147-2010: Test method of metal corrosion amount and corrosion rate of chemical cleaning for industrial equipment -- Gravimetric method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25147-2010 | English | 189 |
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Test method of metal corrosion amount and corrosion rate of chemical cleaning for industrial equipment -- Gravimetric method
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GB/T 25147-2010
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Basic data | Standard ID | GB/T 25147-2010 (GB/T25147-2010) | | Description (Translated English) | Test method of metal corrosion amount and corrosion rate of chemical cleaning for industrial equipment -- Gravimetric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G90 | | Classification of International Standard | 71.120.01 | | Word Count Estimation | 8,839 | | Date of Issue | 2010-09-26 | | Date of Implementation | 2011-03-01 | | Quoted Standard | GB/T 6682; HG/T 3523 | | Regulation (derived from) | National Standard Approval Announcement 2010 No.6 (Total No.161) | | 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 test methods and corrosion of metal corrosion rate of total industrial equipment, chemical cleaning process. This standard applies to industrial equipment, chemical cleaning and cleaning before laboratory measurement spot metal corrosion rate and corrosion of the total. | GB/T 25147-2010: Test method of metal corrosion amount and corrosion rate of chemical cleaning for industrial equipment -- Gravimetric method
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Test method of metal corrosion amount and corrosion rate of chemical cleaning for industrial equipment.Gravimetric method
ICS 71.120.01
G90
National Standards of People's Republic of China
Industrial equipment, chemical cleaning and metal corrosion rate
Corrosion Test Method total weight of the law
Issued on. 2010-09-26
2011-03-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee on mechanical and chemical equipment.
This standard was drafted. Bluestar Environmental Engineering Co., Ltd., China National Bluestar (Group) Co., Ltd.
Drafters of this standard. Li Defu, Wang Shuangtian, Chenen Hui, Liu Yang, Chung Dong Sheng, Zhao Chico, Comverse, a single prime spirit.
Industrial equipment, chemical cleaning and metal corrosion rate
Corrosion Test Method total weight of the law
1 Scope
This standard specifies the test method for corrosion of metal corrosion rate and the total amount of industrial equipment, chemical cleaning processes.
This standard applies to industrial equipment, chemical cleaning and cleaning before laboratory measurement field of metal corrosion rate and corrosion of the total.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Laboratory use specifications and test methods GB/T 6682 Analysis
HG/T 3523 standard chemical treatment of cooling water corrosion test piece technical conditions
3 Method Summary
We will be ready and after accurately weighed metal specimens immersion in the test solution, under conditions of a temperature and corrosion test specified time
A posteriori, to be tested, remove the test piece was treated and then weighed by the mass loss of the test piece to calculate the test solution to the test strip and metal corrosion rate
The total amount of corrosion, in order to evaluate the total amount of corrosion and industrial equipment in the chemical cleaning process of the corrosion rate.
4 Preparations
4.1 Prepare the test piece
4.1.1 The test specimen material in accordance with the cleaning solution identified in the metal material selection, ensure that the test specimen and the actual cleaning of the metal material
Consistent.
4.1.2 The test piece size, shape and dimensions, the machining program, in line with the requirements of the test strip appearance HG/T 3523 requirements.
4.1.3 tweezers to take the test on a clean sheet of paper.
4.1.4 first with cotton dipped in distilled water and scrub specimens, rinsed with distilled water 15s.
4.1.5 immediately placed in chemically pure anhydrous ethanol, with cotton scrub twice.
4.1.6 The complete scrub of the specimen is placed on a clean filter paper with a hair dryer to dry.
4.1.7 The test pieces dry with paper wrapped, placed in a desiccator, weighed stand 2h after weighing accuracy of 0.0001g.
4.1.8 After the test piece handle can not be touched by hand.
4.2 Prepare the test solution
4.2.1 The laboratory preparation of test solution, use distilled water and analytical reagents, distilled water should meet the GB/T 6682 in three water
Claim.
The main components and proportions 4.2.2 laboratory test solution should be identified with the cleaning solution cleaning solution considerably.
4.2.3 The concentration of the solution is represented by the mass fraction.
4.2.4 Laboratory and the determination of the total amount of corrosion of metal corrosion rate, volume of test solution of the general requirements for each 1cm2 surface area of the test piece surface
Smaller than 20mL, shall not exceed 40mL.
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