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While the acceptance criteria are different, in all three cases, the use of TOFD or PAUT using equipment mechanically mounted and guided on the examination surface either through automatic or semiautomatic means is required. Four or more rounded indication in a line separated by 1/16" (2.0mm) or less edge to edge. Ten or more rounded indication in any 6 sq. Any cracks or linear indications. Salvar Salvar API 1104 Defects-Acceptance-Criteria Final para ler mais tarde. Using the right terminology isn't hard, it just takes a . Welds containing indications which fail to meet these criteria are unacceptable and must be repaired. Any crack, lack of penetration, and lack of fusion shall not be accepted 2. The acceptance criteria are also similar to the accuracy evaluation . The Section IX specifies elaborate tests, acceptance criteria, qualifying ranges etc. b) Rounded indication or indications which are circular or . . Paragraph 9.4.2 provides the acceptance criteria for linear indications and refers the reader to paragraphs 9.3.9.2 (individual or scattered porosity) and 9.3.9.3 (cluster porosity) for the acceptance criteria for rounded indications. The threshold for evaluation is >1mm (1.5mm for ASME). in. Any crack or liner indication. Linear indications are evaluated as cracks other than crater cracks or star cracks. This International Standard specifies acceptance levels for indications from surface breaking imperfections in metallic welds detected by penetrant testing. ASTM B 31.1 BOILER . Linear indications are those in which the length is more than three times the . As far as acceptance criteria for liquid penetrant or magnetic particle examination for imperfections on weld bevels are concerned, RCC-M is more stringent. 3. Rounded indications: Pending verification from ANSI. . Until otherwise stipulated by ANSI B31 Committee, apply B31.1 . Linear indications evaluated as crater cracks or star cracks exceed 5/32 inch (3.96 mm) in length. 1/32" ( 0.032") long linear indications are the maximum acceptable in critical areas. Relevant indications shall be unacceptable when any of the following conditions exists: a. SCT/FAT/000 Revision no. 11.4.2 Acceptance Standards. in. (1.5 mm). 2. Rounded indications (circular or elliptical shape) are one having length equal to or less than 3 times of its width. To reject any indication i need to comply 3 rules :- 1. Four or more rounded indications in a line separated by 1/16 inches or less. (3870mm2) of surface with the major dimension of this area not to exceed 6 in. Comply with Rejectable length. Positions qualified modified, now similar to those in old AS2980 and AWS D1.1 . surface with major dimension < 6 in. A convex or concave irregularity on the surface of a backing ring or strip, fused . Rounded indications: Indications is dimensions > 3/16" (5.0mm). Contributors also provide examples and explanatory text, graphics, references, and annotated bibliographic notes. (1.5 mm) or less, edge-to-edge. I wonder what . Linear Indication Definition (s) Linear Indication Liquid penetrant or magnetic particle examination indication whose length is equal to or greater than three times its width. Global Standards Linear Indication (25 mm). If you try and boil it down to look like a set of acceptance criteria "designed" specifically for MT or PT (such as ASME Sec VIII), you will get something like - no linear indications allowed (D1.1 requires no cracks and thorough fusion) though some might debate that you can allow linears based on the allowable undercut - rounded indications . 2.6 Acceptance Criteria and Rectification of Defects 2.6.1 Acceptance Criteria Visual Inspection All forgings are to be free of cracks, crack-like indications, laps, seams, folds or other . Title Page No. The porosity does not exceed the AWS D1.5 acceptance criteria. Refer the table below from AWS D1.1 , for the acceptance criteria for Liquid Penetrant Testing, the acceptance criteria for visual testing also applies for . for T up to 19 mm (3/4 in.) 88% (34) 88% acharam este documento til (34 votos) 30K visualizaes 4 pginas. The linear relationship expressed by the coefficient of determination (R 2 ) of the regression line which was found to be 0.9990 showing a good linearity. Basing the acceptance on porosity, the criteria for a single pore hole is as follows: 9.3.9.2 Individual or scattered porosity (P) shall be considered a defect should any of the following conditions exist: a. inspection of this area revealed there was a possible linear indication. Acceptance criteria for Linear Indications: Any type of crack, incomplete fusion, and incomplete penetration shall be considered unacceptable. b. Unratable Imperfections, pits, blowholes, bottomed porosity, (0.8 mm) are still allowed though. Acceptance criteria Cracks or linear indication ( L > 3 W) Rounded indications dimension > 4.8 mm Four or more rounded indications in a line separated by 1.6 mm edge to edge Ten or more rounded indications in any 6 sq. A rejectable flaw is a defect. If i never comply with one of the above criteria i cant reject any indcation. surface shall be considered defects should any of the following conditions exist: The aggregate length of LS indications in any continuous 12" (300-mm) length of weld exceeds 1". (4 mm) in length. Steam Turbine (below 50 MW and, over . fASTM B 31.1 and ASME VIII Any elongated slag inclusion shall be considered unacceptable, which has a length greater than 3 mm (1/8 in.) 11) Defect >> GOTO 10 >> READY. This type of indication can be caused by various factors, including: porosity, incomplete penetration, slag inclusion, lack of fusion, and others. Ten or more rounded indication in any 6 sq. Linear indications are those indications in which the length is more than three times the width. (0.8 mm) wide using the following acceptance criteria: no linear indications allowed, indications less than 0.06 in. The size of an individual pore exceeds 1/8 in. Clients specification requirements for acceptance criteria. Size of indication is the criteria and not the size of defect. 8.2.3.1 The maximum permissible size of any indication shall be 1/4t, except that the size of an isolated indication separated from an adjacent indication by " or more may be 1/3t. Relevant Indications: All Indications with major dimensions greater than 1.5 mm (1/16 in.) 2. shall be considered as relevant. crack like linear indications are always cause for rejection http://www.everyspec.com/MIL-STD/MIL-STD-1800-1999/MIL-STD-1907_5732/ MIL STD 1907 says this - no propagating discontinuities allowed stringers up to 0.125" long are allowed almost anywhere Please refer below for ASME B31.3 acceptance criteria. Acceptance criteria Cracks or linear indication ( L > 3 W) Rounded indications dimension > 4.8 mm Four or more rounded indications in a line separated by 1.6 mm edge to edge Ten or more rounded indications in any 6 sq. The aggregate length of LS Indications exceeds 8% of the weld. Conclusion. B31 1 Acceptance Criteria - August 24, 2022 Relevant linear indication 116 159mm. Size of indication is the criteria and not the size of defect. TNE Written Practice Note: In case of conflict between Code requirements and Client's specifications, Code requirements . Rounded indications: Pending verification from ANSI. The linear indication depends on the thickness if the thickness is less than 0.75 inch then any linear indication greater than 1/4 inch will be considered unacceptable. (3 mm). Qualification based on consumable used, not parent material Defect acceptance still based on AWS D1.1 . As a result, engineers can immediately refer to the material requirements to find acceptance criteria. The area was wire brushed with a power wire wheel and then . The indication level must be above reference level 3. Any indication greater than that produced by the calibration notch representation; Welds over 6mm thick can be ultrasonically tested in reference with procedure given in ASME. following acceptance criteria applies for Liquid Penetrant Test or Dye Penetrant Test: Examined area shall have no relevant linear indications. (b) Tw/3 for 19 mm < Tw 57 mm (214 in.) Acceptance Criteria. ASME B31.3-ACCEPTANCE CRITERIA 344.6.2 Acceptance Criteria. Any crack or liner indication. 3 options now available for validation period. (a) Rounded Indications:- Indications with a maximum length of three times the width or less on the radiography are defined as rounded indications. The area was then MT inspected and the linear indication was marked. But if the welder has done a groove joint, any groove joint, well he is a superman. Penetrant testing: Indication sizing ASTM E1417 (Para 7.6.4) on ''Sizing'' states that, indications can be accepted on discontinuity or flaw sizing. Linear regression for calibration lines revisited: Weighting . Any other elongated indication shall be considered unacceptable, which has a length greater than; 6 mm (1/4 in.) WD-003 intend to withdraw AS/NZS 2980 in the future (no date set). The ICH acceptance criteria of the linear . b. Level 4-Ultra-High Sensitivity Any relevant linear indications. Assume I see a rounded indication of diameter 5 mm (0.2 inch). Type of indication Acceptance levela 1 2 3 Linear indication l = length of indication l 2 l 4 l 8 Nonlinear indication d = major axis dimension d 4 d 6 d 8 a Acceptance levels 2 and 3 can be specified with a suffix, "X", which denotes that all linear indications detected shall be evaluated to level 1. a) A linear indication shall be considered ``isolated'' when it is not aligned with any other linear indication, or when it is aligned with another linear indication, but separated from it by more than five times the length of the longer of the two indications considered. . Span 3, Beam 2 (NDT Test Location) - The web at bottom flange weld 5 . surface with major dimension < 6 in. 00 MACHINE SR. NO. in. A linear calibration curve is a positive indication of assay performance in a validated analytical range. Acceptance criteria contained herein are segregated by class representing the degree of severity of the various discontinuities that are acceptable for . (0.15 cm) are classified as round indications, and indications 0.02 in. lACIUTYNAME 11) DIABLOCANYONUNIT1 LICENSEEEVENT REPORT(LE/ DOCKET NUMBER 2 0 5 0 002 7 51"7 . The thickness of the weld reinforcement, where measurable in the radiographic image of the weld edge views, shall be at least as thick as the indication (s). . While measuring the 'flaw' with a pin gauge, it measures 0.2 mm (0.008"). A linear-type discontinuity is unacceptable if the amplitude of the indication exceeds the reference level and its length exceeds (a) 6 mm (14 in.) The following definition of indications shall be utilized: Relevant Indications - Indications with major dimensions greater than 1/ 16 in. What are the appropriate means of measuring such a flaw? LER 92-022-01:on 920924,determined that linear indications on piping in MFW sys near SG nozzles may be beyond ASME flaw acceptance criteria.Caused by thermal stratification-induced fatigue.SG FW nozzles will be modified. 14. Aligned Indications: A sequence of four or more rounded indications shall be considered to be aligned when they touch a line parallel to the length of the weld drawn through the centre of the two outer rounded indications. The following condition is permitted to exist in nuclear components, parts or appurtenances for T less than to 10 mm (3/8 in.) if you are qualifying your welder with a fillet weld test. It represents a stress concentration that often must be corrected, and appears as a dark indication at the toe of a weld. Indications shall be sized using the applicable technique(s) provided in the written procedure for the examination method. (1 mm) in length and 0.03 in. To reject any indication i need to comply 3 rules :- 1. Acceptance Criteria of Mechanical Vibration (ISO 10816-3:2009) ISO 10816-3 Mechanical vibration - "Evaluation of machine vibration by measurements on non-rotating parts - Part 3: Industrial machines with nominal power above 15 kW and nominal speeds between 120 r/min and 15,000 r/min when measured in situ". 6.1.1 and 6.1.2. surface with major dimension < 6 in. Linear surface (LS) indications (other than cracks) interpreted to be open to the D. or O.D. 1 Scope. As per ASME Sec VIII Div 1 and Div 2, all surfaces examined by magnetic particle inspection shall be free from. Rounded indications: For material less than 1/8-inch (3 mm) thickness (t) Maximum nos. 1/8-inch (3 mm) maximum or 20% of material thickness (t), whichever is smaller. evaluation: asme section viii (appendix 6) acceptance criteria: an indication of an imperfection may be larger than the imperfection that . a linear indication is one having a length greater than three times the width. (0.5 mm) and smaller are to be disregarded? When the size of the discontinuity or indication is not clearly less than or does not clearly exceed the acceptable size, gage pins shall be used for measurement. This International Standard specifies a method for the magnetic particle inspection of ferro-magnetic steel castings. All the results meet the acceptance criteria: peaks on the chromatogramms are clearly separated; the correlation coefficients (r) are not more, than 0,980; accuracy was proved by linearity . Code Case 2235-13 paragraph (d) requires UT to be performed using a "device employing automatic computer based data . Any cracks or linear indications. . Alternative options available. Rounded indications (e.g., porosity or pores. [r9] 3.19 Melt-through. Attachment 4, Qualification Test Acceptance Criteria Page 3 of 6 Four or more relevant rounded indications in a line separated by 1/ 16 in. (150mm). Limits for imperfections for acceptance of turbine blade castings, determined visually and with fluorescent penetrant in accordance with MIL-STD-6866, shall be as follows: a. Castel-Branco MM, Falcao AC. 1.8. in. Please refer below for ASME B31.3 acceptance criteria. The linear indication is a test result in which a discontinuity in the material being tested is displayed as a linear or aligned array. This International Standard applies to all ferro-magnetic castings, independent of the . of rounded indications shall not be more than. Ten or more rounded indication in any 6 sq. luck-of-fusion and lack-of-penetration. before carrying out non-destructive testing, the following items, if applicable, shall be agreed between the manufacturer and the society. (c) 19 mm for Tw > 57 mm These notches simulated linear indications in the welds, e.g. - Linear indication = an indication in which the length is at least three times the width - Non-linear indication = an indication of circular or elliptical shape with a length less than three times the width - Aligned indication = three or more indications in a line, separated by 2 [mm] or less edge-to-edge Acceptance criteria when described as "indications" shall be effective after evaluations per pars. No evidence of cracks, dross, cold shuts, bot tears, linear or crack-like indication, or linear inclusions. ASTM B 31.1 and ASME VIII RADIOGRAPHIC EXAMINATION - Acceptance criteria Cracks or . This comprehensive new guide, available in two volumes, addresses Sections I through XI of the ASME Boiler and Pressure Vessel Code and Codes B31.1 and B31.3 for Pressure Piping. (3870mm2) of surface with the major dimension of this area not to exceed 6 in. Code Acceptance Criteria for Magnetic Particle Inspection. Comply with Rejectable length. a rounded indication is one of circular or elliptical shape with the length equal to or less than three times the width. Sec V article 4. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Any crack or liner indication. Linear indication - an indication in which the length is at least three times the width; Nonlinear indication - an indication of circular or elliptical . It is located at the center of a weld and is a wide, linear indication. . Relevant round indications with dimensions > 3/16 (4.8mm). Linear indications are evaluated as crater cracks or star cracks and not exceed 5/32 in. (3870mm2) of surface with the major dimension of this area not to exceed 6 in. A-250.3 Acceptance Criteria A-250.3.1 Image Density: Density within the image of the indication may vary and is not a criterion for acceptance or rejection. for Tw 19 mm (34 in.) document name factory acceptance test PROTOCOL no. Definition: one or more flaws whose aggregate size, shape, orientation, location, or properties do not meet specified acceptance criteria and are rejectable Example: stuff that fails your acceptance criteria (too long, too loud, crack-like, etc.) medium and high QC samples in the same run that accuracy is testing. Four or more rounded indication in a line separated by 1/16" (2.0mm) or less edge to edge. If the thickness of the test object is between 0.75 and 2.25 inch, then max allowed linear indication is the 1/3 of the thickness. b. Reference 1 contains typical acceptance criteria for indications in welds. No linear indications are permitted (laminar indications up to 25mm and linear indications up to 5mm long are permitted by ASME). Determine the correct evaluation for an indication measuring 0.04 in. Rounded indications: Indications is dimensions > 3/16" (5.0mm). Acceptance criteria for Linear Indication (UW - 51): 1. Asme B31 1 2020 122 The surface condition of the finished welds shall be suitable for the proper. Until otherwise stipulated by ANSI B31 Committee, apply B31.1 criteria for rounded indications. It must be linear indication 2. Other linear indications with a length no greater than 1/32 in. . Ad Our courses can help you pursue a successful career in engineering. Acceptance Criteria. (150mm). 7.1 No cracks or linear discontinuities are permitted. Few examples of product standards are as below : . When evaluating the size of the indications, the tail shall be included. whose length is measured from the extremities of the aligned linear indications. Linear indications means the indication having a length more than 3 times of its width. Four or more relevant round indications in a line separated by 1/16 (1.6mm). (150mm). Incomplete penetration, as the name implies, is a lack of weld penetration through the thickness of the joint (or penetration which is less than specified). The Indications are evaluated as per Clients Acceptance Criteria or the Product Standard in conformance with the clients acknowledgement . Table of Contents Sr. No. . in. 1.0 Purpose 2.0 Scope 3.0 Responsibilities 4.0 System description 5.0 Test and inspection 6.0 The acceptance levels are primarily intended for use during manufacture examination, but where appropriate, they can be used for in-service inspection. Linear indications are those indications in which the length is more than three times the width. specific testing procedure, if required extent of testing testing plan testing equipment calibration of the equipment calibration and reference blocks acceptance level actions necessary for Factory Acceptance Test for Automatic Strip Packing Machine machine name AUTOMATIC STRIP PACKING MACHINE Client Name & Address M/S. It also gives acceptance criteria through severity levels defined by the nature, the area and the dimensions of the discontinuities present. For three specimens, volumetric If i never comply with one of the above criteria i cant reject any indcation. in. And that's it. Four or more rounded indication in a line separated by 1/16" (2.0mm) or less edge to edge. It must be linear indication 2. These defect indications may be circular, ellipticals, conicals, or irregular in shape and may have tails. Linear indication; Rounded indication with size greater than 3/16 inches. Acceptance criteria Cracks or linear indication ( L > 3 W) Rounded indications dimension > 4.8 mm Four or more rounded indications in a line separated by 1.6 mm edge to edge Ten or more rounded indications in any 6 sq. Table- 2. The indication level must be above reference level 3. Rounded indications: Indications is dimensions > 3/16" (5.0mm). Linear Indications: crack, Incomplete Fusion, Incomplete Penetration, elongated Slag Inclusion 4.

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