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GB/T 25834-2010: Corrosion of metals and alloys -- Accelerate corrosion testing of iron and steel in outdoor atmospheres
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GB/T 25834-2010: Corrosion of metals and alloys -- Accelerate corrosion testing of iron and steel in outdoor atmospheres

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Corrosion of metals and alloys. Accelerate corrosion testing of iron and steel in outdoor atmospheres ICS 77.060 H25 National Standards of People's Republic of China Corrosion of metals and alloys Steel Atmospheric accelerated corrosion test Issued on. 2010-12-23 2011-09-01 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 Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. This standard was drafted. Institute of Metal Research, Metallurgical Industry Information Standards Institute, the national environmental corrosion materials science field Research Center Research Station network. The main drafters of this standard. Han Wei, Wang Zhenyao, Chao Feng, Liu gems in the country before. Corrosion of metals and alloys Steel Atmospheric accelerated corrosion test

1 Scope

This standard specifies the general requirements for steel atmosphere accelerated corrosion test. This test should be relatively dry climate season or region Atmospheric corrosion under outdoor exposure test station (field) conditions. The standard test objectives are. --- Faster data obtained steel corrosion under atmospheric environment; --- Evaluated under the given test conditions and exposure to natural atmospheric ambient conditions correlation between test results.

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. General rules GB/T 11377 metals and other inorganic coatings under storage conditions Corrosion Test General requirements GB/T 14165-2008 metals and alloys - Atmospheric corrosion testing for field tests Removal of corrosion products from corrosion specimens GB/T 16545 of metals and alloys Measurement GB/T 19292.3 atmospheric corrosion of metals and alloys corrosive pollutants JB T 6074 etching sample preparation/cleaning and assessment

3 test device

Acceleration test device by the test stand and atomization system. Wherein the system includes a spray atomization device (water part), water purifiers and timing Spraying automatic control system. Figure 1 is a schematic diagram of the test stand and the atomizing device. 1 --- test stand; 2 --- head; 3 --- pumps; 4 --- sink; 5 --- pump inlet; 6 --- sink outlet; 7 --- pump outlet; 8 --- pump outlet pipe (water pipe); . 9 --- valve (back valve); 10 --- tank inlet; . 11 --- water purification; 12 --- purifier outlet; 13 --- sink inlet (entrance test medium); 14 --- sink overflow; 15 --- sink outfall; 16 --- purifier inlet; 17 --- purifier outlet (outfall); 18 --- sample. Figure 1 Schematic diagram of accelerated test ...