CONTENT目录1.0 SCOPE范围 (3)2.0 REFERENCE STANDARD 参考标准 (3)3.0 PERSONNEL QUALIFICATION 人员资质 (3)4.0 EXTENT OF NDT NDT 范围 (3)5.0 TIMING OF NDT NDT检验时间 (4)6.0 TESTING PROCEDURE 检测程序 (4)7.0 REPORT FORM 报告格式 (10)1.0 SCOPE 范围This procedure covers the methods, techniques and acceptance criteria for MagneticⅡ. Particle Inspection of LUFENG 13-2 OILFIELD DEVELOPMENT PHASE PROJECT本检验程序包含了LUFENG 13-2 OILFIELD DEVELOPMENT（PHSAE-2）项目磁粉检验的检验方法、检验工艺和验收标准。
2.0 REFERENCE STANDARD 参考标准• Owner’s Specification• AWS D1.1-2006 Structural Welding code –Steel 钢结构焊接规范• ASME V 2007• ASMEVIII 2007• ASTM E 7093.0 PERSONNEL QUALIFICATION 人员资质Personnel performing the NDT testing shall be qualified and certified to NDT Level II in accordance with the requirements of SNT-TC-1A recommended practice and approved by NDT Level-III (COOEC) or equivalent qualifications approved by OWNER.所有从事无损检验工作的人员均应按照SNT-TC-1A推荐作法或等同标准取得II级资质证书，并由COOEC NDT III 级人员批准或经过业主的批准。
4.0 EXTENT OF NDT NDT 范围Extent of NDT to be carried out as per fabrication and welding specification, extent of non-destructive examination and weld NDT DWG.NDT范围应按照业主规格书无损检验范围的要求以及焊缝NDT图纸的要求进行。
5.0 TIMING OF NDT NDT检验时间Welds in tubular on T, K or Y connections whose wall thickness is not smaller than 32mm and all through thickness locations, due to the possibility of delayed hydrogen cracking, shall be nondestructively examined no sooner than 48 hours after welding, unless otherwise authorized by COMPANY. Other welds in High Strength Material (yield and above), shall be nondestructively examined no sooner than 24 hours after welding, unless otherwise authorized by COMPANY. Padeye welds shall be nondestructively examined no sooner than 48 hours after welding.除非业主另有批准，对于管状T,K,Y型连接管壁厚度大于32mm时，由于存在延时裂纹的可能性，无损检测应该在焊接完成后至少48小时后进行。
除非业主另有批准，其他高强度材料（大于等于345MPa）焊缝的无损检验应该在焊接完成后至少24小时后进行。
MT Reports shall be available within48 hours after inspection and before the subassembly proceeds to final assembly.MT检验报告应在检验完成后48小时内完成，并且在下一步组对至最终装配前完成。
6.0 TESTING PROCEDURE 检测程序6.1 MAGNETIC PARTICLE TESTING磁粉检验MT of welds shall be in accordance with ASME VIII division 1 and division 2, ASTM E 709, Article 7 of FABRICATION AND WELDING SPECIFICATION.焊缝磁粉检验按业主规格书要求即ASME VIII division 1 and division 2, ASTM E 709, 第 7 章进行。
MT EQUIPMENT 设备A.C. Electromagnetic Yokes 交流磁轭Yokes (220V/50Hz Alternating Current) used shall be the articulated leg type.磁轭（200伏/50赫兹，交流）应当是铰接式的；CALIBRATION 校准Yokes shall develop a minimum lifting force 4.5kg at maximum leg spread. The lifting force shall be checked as per code requirement.磁轭磁力应根据提升力进行校准。
每一台交流磁轭在最大磁极间距时应至少具备 4.5Kg的提升力。
应当按照规范的要求校核提升力。
ALTERNATING CURRENT YOKE TYPE 交流磁轭MODULE型号DA400S B310PD XDYY-ⅢN-1BSMANUFACTURE R制造商PARKERRESEARCHCORP.PARKERRESEARCHCORP.TIEDE AMERICAEXAMINATION MEDIUM WET MAGNETIC PARTICLE MATERIALS 湿式磁粉检测用材料1) The magnetic particles used for obtaining patterns of discontinuities shall be non-toxic and shall provide adequate contrast with the surface being examined.磁粉应当是无毒的，并应与被检工件表面有较高的对比度。
2) The magnetic particles used for obtaining patterns of discontinuities shall be capable of exhibiting good visual contrast against the white backing medium.磁粉应能与白色反差剂有很高的外观对比度。
3) White background contrast shall be used with black magnetic ink particles and shall not corrode or otherwise adversely affect the integrity of the steel components being examined.白色反差剂应与黑色磁粉同时使用，不能腐蚀或对被检工件产生有害影响。
MAGNETIC PARTICLE TYPE-(WET)磁悬液类型（湿式）MODEL型号760# 900#COLOR 颜色 BLACK黑色 BLACK黑色MANUFACTURER制造商YINGKOU MAGNETIK MATERIAL FACTORY, OR SHANGHAI DETECTOR FACTORY营口磁粉材料厂或上海探测设备厂PROCEDURE 程序The yoke technique shall be used in accordance with ASME V, Article 7.按ASME V第7章要求的要求，使用电磁轭法技术法。
The A.C. Yoke and the permanent magnet method shall be used to induce the required magnetic fields.应当使用交流电磁轭法或永久磁铁进行检验，以产生所需要的磁场。
TYPE OF WELD焊缝的类型The butt and fillet weld of structure 结构的对接和角焊缝TEMPERATURE DURING TEST 试验时的温度Wet method magnetic particle examination shall not be performed if the surface temperature of the part exceeds 57°C. MT should be done with.当被检工件表面的温度超过57摄氏度时，不能使用湿式磁粉进行检验。
磁粉检验应当按照下列进行：1）Black oil magnetic-suspension, MANUFACTURER-（Model of Spray-Can is MT-BO.黑色油性磁悬液，制造商：MARKTEC，型号：喷罐型MT-BO2）Black water magnetic-suspension, MANUFACTURER-MARKTEC ,Model of Spray-Can is MT-BW.黑色水性磁悬液，制造商：MARKTEC，型号：喷罐型MT-BW3）Mixed ethanol and water base magnetic ink, MANUFACTURER-MARKTECModel of Magnetic-Paste is W-1,The proportion of ethanol and water is 1:10.乙醇和水混合磁悬液，制造商：MARKTEC，型号：磁膏W-1。