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GB/T 25146-2010: Quality acceptance specifications of chemical cleaning for industrial equipment
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25146-2010 | English | 98 |
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Quality acceptance specifications of chemical cleaning for industrial equipment
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GB/T 25146-2010
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Basic data | Standard ID | GB/T 25146-2010 (GB/T25146-2010) | | Description (Translated English) | Quality acceptance specifications of chemical cleaning for industrial equipment | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G90 | | Classification of International Standard | 71.120.01 | | Word Count Estimation | 12,174 | | Date of Issue | 2010-09-26 | | Date of Implementation | 2011-03-01 | | Quoted Standard | GB 8978; GB/T 25147; GB/T 25148; GB/T 25149; GB/T 25150 | | 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 the chemical cleaning of industrial equipment in the dirt classification, cleaning quality requirements, test methods and final acceptance. This standard applies to steel, low- alloy steel, stainless steel, copper and copper alloys, surface water industrial equipment, such as aluminum and molybdenum alloy material formed scale, rust, chemical cleaning grease and other dirt. Chemical cleaning industrial equipment scale chemical cleaning materials and other materials can be made ??with reference to the implementation of industrial equipment. | GB/T 25146-2010: Quality acceptance specifications of chemical cleaning for industrial equipment---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.
Quality acceptance specifications of chemical cleaning for industrial equipment
ICS 71.120.01
G90
National Standards of People's Republic of China
Industrial equipment, chemical cleaning quality acceptance
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
Appendix A of this standard is a normative appendix, Appendix B is an informative annex.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee of Chemical Machinery and Equipment (SAC/TC429) centralized.
This standard was drafted. Bluestar Environmental Engineering Co., Ltd., China National Bluestar (Group) Co., Ltd.
The main drafters of this standard. Li Defu, Chung Dong Sheng, Liu Yang, Chen Enhui, Liu Jie, Liu Shan, Wang Shuangtian, Cai Liang Zhen.
Industrial equipment, chemical cleaning quality acceptance
1 Scope
This standard specifies the chemical cleaning of industrial equipment in soil classification, cleaning quality requirements, test methods, and final acceptance.
Water This standard applies to carbon steel, low alloy steel, stainless steel, copper and copper alloys, aluminum and aluminum alloys and other materials formed on the surface of industrial equipment
Dirt, rust, grease and other dirt chemical cleaning.
Chemical cleaning industrial equipment material scale chemical cleaning materials and other industrial equipment can be implemented by reference.
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.
GB 8978 Integrated Wastewater Discharge Standard
Test methods for metallic corrosion rate and corrosion of the total GB/T 25147 industrial equipment, chemical cleaning method of weight
GB/T 25148 industrial equipment, chemical cleaning cleaning cleaning rate and the rate of testing methods
GB/T 25149 industrial equipment, chemical cleaning passivation film quality carbon steel test method red dot method
GB/T 25150 industrial equipment, chemical cleaning of austenitic stainless steel passivation film quality testing methods blue dot method
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Chemical cleaning chemicalcleaning
Methods using chemicals and pipeline equipment or chemical action of surface dirt to be washed to remove dirt.
3.2
Corrosion rate corrosionrate
Chemicals and equipment to be cleaned, the metal piping and components relative rate of corrosion of metal in contact. Corrosion rate units available time
Quality metal corrosion within the unit area, in units of grams per square meter per hour [g/(m2 · h)].
3.3
Inhibition rate inhibitionefficiency
Evaluation of corrosion inhibition efficiency parameters.
η =
Metal corrosion inhibitor was not added when the rate - the rate of metal corrosion inhibitor added when
Metal corrosion inhibitor was not added when the rate
× 100%
3.4
Total Corrosion metalcorrosionamount
Chemical cleaning process, when contact with the chemical cleaning equipment or pipeline metal per unit area of \u200b\u200bthe etched metal quality. single
Bit grams per square meter (g/m2).
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