IS025902-2:2010(E) Titanium pipes and tubes Non-destructive testing -Part 2: Ultrasonic testing for the detection of longitudinalimperfections 钛管件和管材无损检测第2部分：纵向偏差的超声波检测 Foreword 前言 1. Scope 范围 2. Normative references 参考文件 3. General 通则 3.1Applicable dimension range 适用尺寸范围 3.2 Testing technique 检测技术 3.3 Personnel 人员 Apparatus 设备 4.1 Ultrasonic system 超声波系统 4.2 Ultrasonic instrument 超声波仪器 4.3 Ultrasonic transducer 超声波探头 5.1 Reference tube 参考样管 5.1 Purpose 目的 5.2 Materials 材质 5.3Reference reflectors 参考反射体 5.4 Fabrication of reference notches 参考刻槽的加工 5.5Distance ofreference reflectors 参考反射体间的间距 5.6Verification of reference reflectors 参考反射体的检定 6. Test method 检测方法 6.1 Ultrasonic test system 超声波检测系统 6.2 Setting 设置 1／8仅供参考 IS025902-2:2010(E) 7. Acceptance criteria 验收标准 Periodical confirmation of correct setting 设置正确性的周期修正 9. Verification of test system 检测系统的检定 10. Test report 检测报告 Bibliography 参考文献 Foreword 前言 ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (sOmember bodies).Thework of preparing International Standards is normally carried out through IsO technical committees.Each memberbody interested in a subject forwhich a technical committee has been established has the right tobe represented on that committee. International organizations,governmental and non-governmental, in liaison with ISO, also take part in the work.ISO collaborates closely with the International Electrotechnical Commission (IEC)on all matters of electrotechnical standardization ISO(国际标准化组织)是由各国标准化团体(ISO成员团体)组成的世界性的联合会。制定国际标准的工 作通常由ISO的技术委员会完成。各成员国若对某技术委员会确定的项目感兴趣，均有权参加该委 员会的工作。与ISO保持联系的各国际组织（官方的或非官方的）也可参加有关工作。ISO与国 际电工委员会（IEC）在电工技术标准化方面保持密切合作关系。 International Standards are drafted in accordance with the rules given in the ISO/IECDirectives, Part 2. 根据ISO/IEC指令第2部分中规定的规则起草国际标准。 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 技术委员会的主要任务是制定国际标准。技术委员会通过的国际标准草案分发给各成员机构表决。作 为国际标准出版需要至少75%的投票成员机构的批准。 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights 注意，本文件的某些要素有可能是专利权主题。ISO不负责识别任何或所有此类专利权。 ISO 25902-2 was prepared by Technical CommitteeISO/TC 79, Light metals and their alloys, Subcommittee SC 11, Titanium 由 ISO/TC 79技术委员会(轻金属及其合金)、SC11 小组委员会(钛)编制ISO25902-2。 ISO 25902 consists of the following parts, under the general title Titanium pipes and tubes Non-destructive testing: ISO25902包括以下部分，在总标题：钛管无损检测 Partl:Eddy-currentexamination 第1波幅：涡流检测 Part2:Ultrasonictestingforthedetectionof longitudinal imperfections 第2部分：纵向偏差的超声波检测 2／8仅供参考 IS0 25902-2:2010(E) Scope 1. 范围 This part of IsO 25902 specifies an ultrasonic testing method for detecting longitudinal imperfections in titanium seamless tubes or welded tubes 对钛无缝管或焊接管纵向偏差检测的超声波检测方法，ISO25902本分部进行了规定。 This part of ISO 25902 also applies to titanium alloy tubes. ISO25902本分部也适用于钛合金管。 In this part of ISO 25902 在ISO25902的本分部中： a)1 the minimum wall thickness is 0,3 mm, 壁厚≥0.3mm; b)only rectangularnotches are permitted as referencereflectors,and 仅允许矩形槽作为参考反射体，且 theminimum notch depth is 0,08 mm. C） 刻槽深度≥0.08mm。 2.Normative references 参考文件 The following referenced documents are indispensable for the application of this document.For dated references, only the edition cited applies.For undated references, the latest edition of the referenced document (including any amendments) applies 以下参考文件对于本文件的应用是必不可少的。凡注明日期的应用，只引用适用版本。对未注明 日期的应用，引用最新版本的参考文件（包括任何修订）。 Non-destructivetestingQualificationandcertificationofpersonnel ISO 9712 无损检测人员资格和认证 Non-destructivetesting-Ultrasonic inspectionCharacterization of search unit and ISO 10375 sound field 无损检测超声波检测探头和声场的特性 Non-destructivet