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GB/T 24517-2009: Corrosion of metals and alloys -- Outdoors exposure test methods for periodic water spray
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Corrosion of metals and alloys -- Outdoors exposure test methods for periodic water spray
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GB/T 24517-2009
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Basic data | Standard ID | GB/T 24517-2009 (GB/T24517-2009) | | Description (Translated English) | Corrosion of metals and alloys -- Outdoors exposure test methods for periodic water spray | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H25 | | Classification of International Standard | 77.060 | | Word Count Estimation | 11,171 | | Date of Issue | 2009-10-30 | | Date of Implementation | 2010-05-01 | | Quoted Standard | GB/T 6461; GB/T 14165-2008; GB/T 24516.1-2009; JB/T 10579 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.12 (Total No.152) | | 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 test principle cycle of products and materials for outdoor exposure test spray, test equipment, test conditions, test procedures, trial record, data processing and results presentation and test reports. This standard applies to metals and their alloys, metal twist cap, natural environment cycle anodic film and conversion coating spray corrosion test. May encounter rain on environmentally friendly products and materials can also be implemented by reference. | GB/T 24517-2009: Corrosion of metals and alloys -- Outdoors exposure test methods for periodic water spray
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Corrosion of metals and alloys. Outdoors exposure test methods for periodic water spray
ICS 77.060
H25
National Standards of People's Republic of China
Corrosion of metals and alloys
Outdoor cycle spray exposure test methods
Posted 2009-10-30
2010-05-01 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 and Appendix B is an informative annex.
The standard proposed by China Iron and Steel Association.
This standard is under the jurisdiction of the National Steel Standardization Technical Committee.
This standard was drafted. China North Industries fifty nine research institutions, national comprehensive environmental study materials science field stations network corrosion
Center of Metallurgical Industry Information Standards Institute.
The main drafters of this standard. Yang mold, Yong Ling, Wang Zhenyao, Han Wei.
Introduction
The natural environment is one of the main corrosion products and materials in the storage and use of failure due to environmental temperature, humidity, solar
The influence of radiation, making the products of corrosion and aging and changes in the law and the material has a greater difference. In order to shorten the test
Periodic inspection, rapid assessment of products and materials, environmental adaptability, improve products and materials under natural environmental conditions the corrosion rate, developed a "gold
Corrosion outdoor shower metals and alloys cycle exposure test methods. "
The standard use of natural environmental conditions, by strengthening the atmosphere in rain and rain in the corrosive elements, assessment products and materials in the natural ring
Environmental adaptability and reliability under environmental conditions. Purpose spray for natural environmental cycle test is to determine the products and materials in the natural environment
Corrosion rate, shorten the test period, rapid evaluation of environmental goods and materials.
Corrosion of metals and alloys
Outdoor cycle spray exposure test methods
1 Scope
This standard specifies the test principle, test equipment, test conditions, test procedures and product exposure test materials for outdoor spraying cycle,
Test records, data processing and results presentation and test reports.
This standard applies to metals and their alloys, metallic coating, anodizing and conversion coating film cycle natural environment spray corrosion test
Experience, you may encounter rain on environmental products and materials can for implementation.
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/T 6461 on the metal base metals and other inorganic coatings by etching after the test specimens and ratings
General requirements GB/T 14165-2008 metals and alloys - Atmospheric corrosion testing for field tests
Atmospheric corrosion meteorological factors observation method GB/T 24516.1-2009 metals and alloys
JB/T 10579 standard method of corrosion data statistical analysis
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
Place the product in a category or categories of the natural environment, through test trials evaluating its environmental adaptability capabilities intended use environment.
3.2
The natural environment can shorten test time for a class test. This class is the use of test equipment or devices to improve the products and materials in the natural environment test
The frequency of major environmental stress experience in the field is expected to encounter, amplitude, size and duration of its purpose.
3.3
The test solution according to the provisions of the shower and rest time cycle sprayed onto the surface of a specimen, to accelerate corrosion.
4 Test principle
The use of test equipment simulating natural environment rainfall state, the test sample by adding an acid rain and wet surface circulation and strengthen
Salt and other corrosive media, to improve the severity of the natural environment, accelerated corrosion of the specimen.
5 Test conditions
5.1 Test Site and facilities
Proving Ground should have the typical weather patterns of environmental features. Atmospheric testing ground near the top of the main wind direction is not allowed influential trial sources
Existence, to the exposed edges of the field around the obstacle distance is at least more than three times the height of the obstacle, the test site to ensure air circulation, the sun does not
Become blocked.
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