BS EN 15856-2010 无损检测.声频发射.用于检测金属材料边缘浸满液体情况下内部腐蚀的声频发射(AE)试验一般原理

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标准号:BS EN 15856-2010
中文标准名称:无损检测.声频发射.用于检测金属材料边缘浸满液体情况下内部腐蚀的声频发射(AE)试验一般原理
英文标准名称:Non-destructive testing - Acoustic emission - General principles of AE testing for the detection of corrosion within metallic surrounding filled with liquid
标准类型:H26
发布日期:2010/1/31 12:00:00
实施日期:2010/1/31 12:00:00
中国标准分类号:H26
国际标准分类号:19.100
引用标准:EN 473;EN 1330-1-1998;EN 1330-2-1998;EN 1330-9-2009;EN 13477-1;EN 13477-2;EN 13554;EN ISO 8044-1999;EN ISO/IEC 17025
适用范围:This European Standard describes acoustic emission testing (AT) on metallic surroundings filled with liquids for the detection of corrosion processes that are active at the time of the test. It is applicable to metallic storage tanks, such as those used in the chemical and petrochemical industry.The results provide a qualitative statement regarding the condition of the test object and a recommendation regarding the maximum allowable duration of the follow-on service period, based on the AT indications and additional information in order to characterize the AT indications.In the case of flat bottomed storage tanks (FBST) the procedure described within this standard provides testing of the complete bottom, the tank shell up to the filling height and in case of a floating roof tank also the roof sheets incontact with the stored liquid.As for every application of acoustic emission testing, the measured data contain information regarding active sources. An ongoing corrosion process, such as general corrosion and localized corrosion defined in EN ISO 8044, leading to progressive loss of wall thickness will be detected. A corrosion process which has stopped does not produce acoustic emission and will therefore not be detected at the time of test.

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