Liquid Penetrant Examination Procedure 液体渗透检测工艺规程CERTIFICATION演示证实声明This is certified that this procedure has been demonstrated to the satisfaction of the AuthorizedInspector in accordance with the requirements of T-150 of Section V.兹证明该规程已按照ASME规第Ⅴ卷T-150的要求，在带缺陷试板上进行了演示。
演示结果令AI满意。
Specimen No.:试板编号Demo. Report No.:演示报告编号Certified by DateⅢ级证明人：日期：Witnessed by Date授权检验师：日期：1 General概述1.1 This procedure is applied to dye liquid penetrant examination of metal material and weldment forASME Code Items.本规程适用于ASME规产品金属材料和焊件着色液体渗透探1.2 This procedure is only suitable for detecting the defects that are open to the surface of material orweldment.本规程仅适用于探测材料或焊件表面开口类缺陷。
1.3 This procedure shall be certified by demonstration to the satisfaction of the AI prior toimplementation.本规程在执行之前，需通过演示令AI满意。
2 Personnel人员2.1The personnel engaged in the penetrant examination shall be qualified and certified in accordancewith the requirement of the company’s “Written Practice for NDE Personnel Training, Qualification & Certification”( JSSN/CX-10 ).从事液体渗透探伤的人员应为按本公司《无损检测人员培训考评及认证实施细则》（文件号：JSSN/CX-10）进行资格考核和认证的合格人员。
3 Written Procedure Requirements书面规程3.1Requirements要求：Liquid penetrant examination shall be performed in accordance with the written procedure (and the instruction cards as supplementary means), which shall, as a minimum, contain the requirements listed in Table 1. The written procedure shall establish a single value, or range of values, for each requirement.液体渗透检验须按书面规程进行（辅以探伤专用工艺卡）。
书面规程至少包括表一中的容。
书面规程应对每一项要求都给出数值或数值围以作定量评价。
3.2Procedure Qualification规程评定：When procedure qualification is specified, a change of requirement in Table 1 identified as an essential variable from the specified value, or range of values, shall require requalification of the written procedure. A change of a requirement identified as nonessential variable from the specified value, or range of values, does not require requalification of the written procedure. All changes of essential or nonessential variables from the value, or range of values, specified by the written procedure shall require revision, or an addendum to, the written procedure.要求对规程进行评定的时候，表1中主要素的数值发生变化时，需要对书面规程进行重新评定。
副要素的数值发生变化时，不需要对规程进行重新评定。
主要素或副要素的数值发生变化都将要求对书面规程进行修改或补充。
Table 1 Requirements of Liquid Penetrant Examination Procedure* The related clause stipulating the requirement.表1 液体渗透检验规程的要求* 在本规程中出现的相关条款。
4 Penetrant Materials渗透材料4.1The penetrant materials are intended to include all penetrants, solvents or cleaning agents, developers,etc, used in the examination process.渗透材料包括探伤过程中使用的所有渗透剂、溶剂或清洗剂、显像剂等。
4.2The liquid penetrant examination materials shall be designated and recommended as shown in Table 2.The materials used for examination shall be the same type. Intermixing of penetrant materials from different families or different manufacturers is not permitted.液体渗透探伤材料，指定用表2所示牌号。
探伤使用的材料应为是同一类型的。
不同类型或不同制造厂的渗透材料禁止混用。
Table 2表24.3When examining austenitic or duplex stainless steel or titanium, all materials shall be analyzedindividually for chlorine and fluorine content in accordance with the procedure shown in Para.Ⅱ-642 of Mandatory, Appendix Ⅱof Article 6 of ASME Code Section V. The total chlorine plus fluorine content shall not exceed 1% of the residue by weight. The certificate of compliance by batch with test results from manufacturer shall be obtained.探测奥氏体不锈钢或钛材时，应按ASME规第Ⅴ卷Ⅱ-642规定的方法，对所有渗透材料分别分析氯和氟的含量。
残留氯和氟总含量不得超过残留物重量的1%，应有制造单位签发的合格证。
4.4When examining nickel base alloys, all materials shall be analyzed individually for sulfur content inaccordance with the procedure shown in Para.Ⅱ-641 of Mandatory, Appendix Ⅱof Article 6 ofSection V. The sulfur content shall not exceed 1%of the residueby weight. The certificate of compliance by batch with test results from manufacturer shall be obtained.探测镍基合金时，应按照ASME规第Ⅴ卷Ⅱ-641规定的方法，对所有渗透材料分别分析硫含量。
硫含量不得超过残留物重量的1%。
应有制造单位的合格证。
5 Examination Process检验程序5.1Examination flow chart as shown in Figure 1. PT程序流程图见图1Fig. 15.2Surface Preparation: Prior to all penetrant examination, the surface to be examined and all adjacentareas within at least 1in. ( 25.4 mm ) shall be dry and free of dirt, grease, lint, scale, welding flux, weld spatter，paint，oil and other extraneous matter. If necessary, surface shall be prepared by grinding or machining.表面制备:渗透探伤前，被探工件表面及其附近至少1英寸(25.4mm)区域都应干燥，不得有任何污物、油脂、纤维屑、氧化皮、焊剂、油和其它外来物。
必要时，应对表面进行打磨或机加工。
5.3Precleaning预清洗5.3.1The areas to be examined and adjacent areas within at least 1 in. ( 25mm ) shall be cleaned usingcleaning agent before the penetrant is applied.施加渗透剂前，被探区域及其附近至少为1英寸(25mm)区域均需用清洗剂进行清洗。