Rev 4 to RT-ASME III/XI, "NDE Std Radiography."

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BECHTEL CONSTRUCTION, INC.NONDESTRUCTIVE EXAMINATION STANDARD

RADIOGRAPHYRT-ASME III/XI

REV. 4 Date July 8, 1987

M ATERIALS AND QUALITY SERVICES

Prepared and Approv[NDE Level lli ExaminerM 7!9187 Authortzed for use byDateReviewed $ $ II L 7Adn

Date For M. J. 11"

M Me/97 Manager of Construction Cate'Approved'

~ Mane M&WS 'Date 'v

FOR LIMERICK ONLY

'R' "C * 'V':-'DIAALE OF COMIF.NTS "

.

HOV 0 51987-

1.0 SCOPE

BECHTELq g 2.0 REFERENCE S r

, _

3.0 PERSONNEL REQUIREMENTS

4.0 EQUIPMEFI/ MATERIAL REQUIREMEh7S'

5. 0 EXAMINATION C ERAC Q4\\,\\ c. .J - .. T

h3"i6. 0 S E il RA IOji # ,e

D \ Qi ^7. 0 I Y0

8.0 TECHNIQUE REQ I

9. 0 HANDLING AND DEVELOPMENT OF FILM

10.0 ACCEPTANCE STANDARDS

11.0 RECORDS

12.0 NONDESTRUCTIVE EXAMINATICH SUBCONTRACTORS

kph M $b. l. Y irr Y A S $* |6dCfW /0f21 Jf

- 4 |07/08/87) Incorporate FCR No. LP-1269"3 09/17/86I Incorporate PLB No. 19420 and FCR No. WE34 *

2 07/25/86 Incorporate Client Corme n t s

{ 1 05/07/86 Incorporate ANII/ Client Coc=en t s8808240046 0000150 101/17/861 Initial Issue{DR ADOCK 05000353NO. I OATE REVtSJONS PNV

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D*cument No. RT-ASME III/XI !.

'4 (For Limerick only sRay.Pane 2 of 191. 0 SCOPE

|1.1This procedure specifies the minimum requirements for performing

radiographic examination in accordance with ASME Boiler and Pressure Vessel CodeSection V, Article 2.General requirements applicable to the production and

review of radiographs for the Code editions specified in Section 2.0 are provided,

1.2 .

This procedure is applicable to radiographic examination of fer-iticaustenitic, high nickel alloy, aluminum and aluminum alloy materials used in,

plant piping system velds and components. power0.10 inches to 6.00 inches are included. Nominal material thicknesses f rom

A _1. 3

subcontractor NDE personnel when performing radiographic examination.This procedure shall be used by Bechtel NDE personnel and may be used by2.0 REFERENCES

2.1ASME Boiler and Pressure Vessel Code, Section III,1974 Edition throughWinter 1974 Addenda.

_2 . 2

ASME Boiler and Pressure 7essel Code, Section. V,1974 ' Edition throughWinter 1974 Addenda.~

2.3ASME Boiler and Pressure Vessel Code, Section V,

.

1980 Edition throughWinter 1981 Addenda..

g 2.4ASME Boiler and Pressure Vessel Code, Section XI,1980 Edition throughWinter 1981 Addenda.

2.5American Society for Nondest ructive Testing, Recommended PracticeSNT-TC-1A, 1980 Edition.

2.6Qualification and Ce rtification."Bechtel Nondestructive Examination Standard NEPQ-1, "Level III Personnel

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2.7Bechtel Nondestructive Examination Standard NEPQ-2, "Level I and II

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Personnel Qualification and Certification."2.8

Bechtel Construction Procedure CP-W-4, Preservice Inspection of NuclearPiping Systems.

3.0 PERSONNEL REQUIREMENTS.

3.1Bechtel personnel interpreting and evaluating radiographs to this

procedure shall be qualified and certified NDE Level II or III, in accordance withthe applicable Bechtel Nondestructive Examination Personnel QualificationStandard, NEPQ, developed from Recommended Practice, SNT-TC-LA,1980 Edition.

I 3.1.1Subcontractor personnel shall comply with paragraph 12.5 of this procedure.

| 3 A 3.2Radiographs shall be interpreted and evaluated for film quality and for'

discontinuities by an NDE Level II o>code and this procedure. III to ensure compliance with the referenced

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Document No. RT-ASME III/XI Rev. 4 (For Limerick Only) Page 3 of 19*

4.0 EQUIPMENT / MATERIAL REQUIREMENTS

O4.1 Film Selection

4.1.1 Radiographic film shall be either Type 1 or Type 2 f rom Table 2, ofRecommended Practice SE-94.

4.2 Penetrameters

4.2.1 Penetrameters shall be manufactured and identified as required by ASMESection V, Article 2, unless otherwise specified.

4.3 Film Holders /Sc reens1

4.3.1 Each film holder shall contain a front and back lead intensifying screen.Neither screen shall exceed 0.010 inches thick. As a check on backscatteredradiation, a lead symbol "B" with minimum dimensions of 1/2 inch in height and*

1/16 inch in thickness, shall be attached to the back of each film holder.

4.4 Filters

4.4.1 Filters may be used to reduce objectitmabla statter radiation..

4.5 Densitometers

4.5.1 A densicometer shall be used for measuring film densities. Calibration of() densitometers shall be verified by comparison with a calibrated density stripwhich in traceable to Nacional Bureau of Standards. The verification film scripwill be replaced annually and may be developed by comparison to the mastercalibration strip .which will be used quarterly to establish densitometercalibration.

J 4.6 Lead Location Markers

4.6.1 Location markers or any other identifying symbols shall consist of leadbetween 1/4 and 1/2 inch in height.

4.7 Shims

4.7.1 Penetrameter shim size shall exceed the penetrameter size by at least1/8 inch on three sides, and shall be radiographically similar to the material .

under examination. I

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4.8 Radiation Sources |

4.8.1 The acceptable sources of radiation are:

X-ray machines |Cobalt-60 1

Iridium-192o

As)y) 4.9 Film Viewingu.j[.I 4.9.1 Viewing equipment shall have a variable control for the high intensity<

a ,. light s ou rc e .

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Documen t No. RT-ASME III/XI Re v. 4 (For Limerick Only)*

Page 4 of 19

5.0 EXAMINATION COVERAGE

O5.1 Radiography performed to ASME Section III shall cover the entire volume ofthe weld.

5. 2 Radiography performed to ASME Section XI shall cover the entire volume ofthe weld plus the base material for a minimum distance of 1/4 inch f rom each toeof the weld.

5.3 Radiography performed to include both ASME Section III and Section XIshall conform to the requirements of paragraph 5.2.

6. 0 SURFACE PREPARATION

6.1 Materials

6.1.1 Prior to final radiography, surf aces shall satisfy the requirements of theapplicable materials specifications, and all other planned NDE methods, withadditional conditioning, if necessary, to a degree that surf ace irregularitiescannot mask or be confuted with discontinuities.

6.2 Weld Surfaces.

6.2.1 Welds being radiogt4phed need only be prepared to the extent necessarythat the resulting radiographic image is free of any irregularities that couldmask discontinuities.

O7. 0 IDENTIFICATION

7.1 Film Identification

7.1.1 Each radiograph shall be identified through the use of lead numbers and/orletters or by an identification printer. The method used by subcontractors shallbe at the option of Bechtel. The radiographic identification shall include thefollowing informati6n:

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1) Bechtel identification

2) Bechtel job number

3) Component , vessel or piping identification

4) Seam or weld identification

5) R for Repair - R2, R3, etc., if more than one repair

6) Date of radiography

7) Subcontractor's identification

ni@ 8) When radiographs are misidentified, they may be reidentified with() correction tape, i.e., Avery Self-Adhesive Correction Tape orequivalent. This may be done only when the Lead Field Welding Qualitym

EI-.* Control Engineer (LFWQCE) or his designee has determined that it isgg impractical to reradiograph, i.e., inaccessibility, etc., or

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1'"* "'''"*""''' ''' "' "' ''''' " " ' " ' ' ' ' ' ' ' ' " ' ' ' ' ' ' ' ' ' " ' ' ' ' ' ' '1

C) with correction tape,'a special log shall be maintained by the LFWCE |or his designee showing the misidentification, the corrected i

identification, and the signature of the LFWQCE or his designee.7.2 Location Markers*

7.2.1 Location markers shall be used to ensure complete coverage and shall notinterfere with the area of interest. Location markers shall be placed (sourceside or film side), as required in note 3 of Table 1.

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7.2.1.1 If the veld is ground flush with the adjacent base material, lead arrowsor "V's" shall be placed on the base metal at the extremities of the film to

the' area of interest can be accurately located on the radiograph.assure thatThelead arrows or "V's" should be placed approximately 1/4 inch away f rom the edge of

the veld opposite the film location markers, and outside the length of the area ofinterest.

7.2.2 For pipe diameters up to 3-1/2 inch, inclusive, the location markersrepresent degrees of circumference, e.g., "0" and **90* for elliptical exposure s,"0", "60" and "120" for superimposed exposuru. %= "0" strait be M.i.4 pe rparagraph 7.2.4.

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7.2.3 For pipe diameters over 3-1/2 inches, a number belt shall be used, withthe following spacing, when practical:

Nouinal OutsideDiameter (inehes) Spacing

over 3-1/2,thru 10 1 inch apartover 10 2 inches apart

7.2.4 The "Location-0" datum shall be in accordance with ConstructionProcedure No. CP-W4.

8.0 TECHNIQUE REQUIRIMEfffS

8.1 Radiographic examination shall be performed at the time stated in theapplicable job specification.

8.2 Penetrameters

8.2.1 Radiography shall be performed with a technique of sufficient sensitivityto display the penetrameter image, identifying numbers / letters and the specifiedhole listed in Table 2 or 3, as applicable. Penetrameter selection shall be asreferenced in Table 1, Note 1. Thinner penetrameters than specified may be used,but a larger hole is not permitted for judging sensitivity.

8.2.1.1 Backing rings, when used, shall not be considered for penetrameterselection; however, the backing ring and Code allowed reinforcement shall be

9 considered for the use of shims under the penetrameter as referenced in section8.2.4 of this procedure.

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Document No. RT-ASME III/XI Rev. 4 (For Limerick Only) Fame 6 og 19:

8.2.2 Penetrameter Placement

A 8.2.2.1 A penetrameter shall be placed on the source side, out of the area ofinterest. In instances where weld metal is not radiographically similar to cliebase material (as categorized in Appendix Al of SE-142) or geometric configurationmakes it impractical, the penetrameter shall be placed on the veld metal. If thepenetrameter is placed in the area of interest, a second exposure should be takenwith the penetrameter relocated, as not to mask the first location.

8.2.2.2 When inaccessibility prevents placing the penetrameter on the source side,the per.tcrameter shall be placed on the film side of the part. A lead let te r "F,"at least as high as the identification number, shall be placed adjacent to thepenetrameter.

8.2.2.3 The identification number ( s) and the lead letter "F", when used, shall notbe in the area of interest.

8.2.2.4 When configuration or size prevents placing the penetrameter on the part,it may be placed on a separate block as provided in SE-142 of ASME Section V.-

8.2.3 habax of 1sastzamataz.s

8.2.3.1 A minimum of one penetrameter shall be used for each radiograph except asprovided in 8.2.3.3 for panoramic exposures. Each penetrameter shall represent anarea of essentially uniform radiographic density.

8.2.3.2 Should the density of .*.he radiograph anywhere through the area of interestvary by more than minus 15 percent or plus 30 perce'nt f rom the density through the|

| body of the penetrameter, then an additional penetranstar shall be used for each| exceptional area or areas and the radlograph retaken. One penetrameter shall| represent the lightest area of interest and a second penetrameter shall representI the darkest. Intervening densities shall be considered as having acceptable

density.

8.2.3.3 Where one or more exposure holder / cassette is used for an exposure, apenetrameter image shall appear on each radiograph, except where the source isplaced on the axis of the object and the complete circumference is radiographedwith a single exposure (panoramic exposure), in which case at least '* ee equallyspaced penetrameters shall be used. Where portions of longitudinal Jdsadjoining the circumferential weld are being examined simultaneously -un thecircumferential veld, additional penetrameters shall be placed on the longitudinalwelds at the ends of the sections of those welds being radiographed. When anarray of objects in a circle are radiographed, at least one penetrameter shallshow on each object image.

8.2.4 Shims Under Penetrameters

8.2.4.1 If the veld reinforcement and/or backing strip are not removed, a shimshall be placed under the penetrameter. The shim thickness shall be selected sothat the total thickness being radiographed under the penetrameter is essentially

3 the same as the total weld thickness plus backing strip, if used and not removed,,

| ,I and other thickness variations such as in nozzle geometries.

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Document No. RT-ASME III/XI Rev. 4 (For Limerick Only) Page 7 of 19

/' N 8.3 Radiation Source SelectionU8.3.1 X-Radiation

8.3.1.1 ASHI Section V, Article 2, Figures T-240(a), (b) or (c) shall be used as aguide in the selection of X-radiation sources.

8.3.2 Isotope Radiation

8.3.2.1 The recommended minimum thickness for which radioactive isotopes may beused are as follows:

Minimum ThicknessMaterial Iridium 192 Cobalt 60

Steel 0.75 inch 1. 50 inc hHigh Nickel 0.65 inch 1.30 inch

8.3.3 n =A 4 = r i na 3=1 =r r ian Vari = r inn a -

8.3.3.1 When it is not practical to perform radiography within the limitations -

outlined in 8.3.1 or 8.3.2, or when radioactive isotopes other than Iridium 192 orCobalt 60 are used, the procedure shall be proven satisfactory by actual

(~ demonstration of penetrameter resolutioe on the minimum thickness of the material\ radiographed. The technique shall be approved by a Bechtel M&QS Level III or

approved designee.

8.4 Geometrical Unsharpness

8.4.1 Geometrical unsharpness, "Ug," equals source size multiplied by thethickness and divided by the object-to-source distance.

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Ug = Ft/D

Ug = Geometrical Unsharpness: F = Source size in inches, the maximum effective dimension of theI radiating source (or focal spot) in the plane of the distance (D)

from the veld or object being radiographed.D = Distance in inches from the source of radiation to the weld or other

object being radiographed. *

t = Thickness in inches from the source side of the object beingradiographed to the film.

8.4.2 The geometric unsharpness of the radiograph shall not exceed the following:

Material Ug

,

Thickness, inches Maximum, inches|

| 2 and Under 0.020,,

l Over 2 Through 4 0.030-.

| k Over 4 0.070|t,-

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Document No. RT-ASME III/XI Rev. 4 (For Limerick Only) Page 8 of 19

8.5 Specific Exposure / Viewing Requirements

8 . 5 . '. Penetrameter designation, type of exposure / viewing, and number ofexposures shall be as specified in Table 1.

8. 6 Number of Film

8.6.1 Each film holder shall contain a minimum of twe sheets of film for eachexposure.

9. 0 HANDLING AND DEVELOPMINT OF FILM

9.1 Unexposed film shall be stored in a clean, dry area where the emulsionwi.11 not be affected by heat, radiation, harmful vapors, or moisture. Film thatis beyond the manufacturer's expiration date shall not be used.

9.2 Part III of Recommended Practice SE-94 of ASME Section V shall be used at*

a guide for processing film.

9.3 Film Viewing -

9.3.1 Film shall be viewed in an area with esbdued lighting which vill not causereflections from the film surface which will. interfere with adequateinterpretation.

9.3.2 Extraneous light from the illuminator shall be masked when viewing theO radiograph.

9.3.3 Radiographs shall be interpreted only for that area in which thepenetrameter(s) .have established that a suitable radiographic technique has beenused.

9.3.4 The film density through the body of the appropriate penetrameter and thearea of interest shall be 2.0 minimum to 3.8 maximum for single film viewing ofradiographs. A tolerance of 0.05 density is allowed for variations betweendensitometer readings.

9.3.5 Composite viewing of double film exposure is not permitted unless approved,

by a Bechtel M&QS Laval III or approved designee. If approved, the density shall |be a minimum of 2.6 for composite film with a minimum density of 1.3 for each filmof the composite sat. ,

9.3.6 The radiographic film density of the area of interest shall be compared to| the density of the penetrameter. The density in the area of interest must be} between minus 15 and plus 30 percent of the value taken through the penetrameter} and within the allowable density range specified in 9.3.4.

9.3.7 If a light image of the "B" appears on a darker background on theradiograph, protection from backscatter is insufficient and the radiograph shallbe considered unacceptable and the radiograph retaken. A dark image of the "B" on" a lighter background is not cause for rejection provided it does not interfere.~

with interpretation.aSir.:2-20

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; Decument N% RT-ASME III/XI Rev. 4 (For Limerick Oniv) Fate 9 of 19,

9.3.8 All radiographs shall be free from mechanical, chemical, or otherOblemishes to the extent that they cannot mask or be confused with the image of anyddiscontinuity in the area of interest of the object being radiographed. S uc hblemishes include, but are not limited to:

1) fogging;2) processing defects such as streaks, water marks, or chemical stains;3)

sc ratche s , finger marks, c rimp s, dirt, static marks, smudges, or tears ;4) loss of detail due to poor screen-to-film contact;5)

false indications due to defective screens or internal faults.10.0 ACCEPTANCE STANDARDS

10.1 Final Interpretation of Radiographs.

A 10.1.1 Radiographs shall be interpreted and evaluated for film quality and fordiscontinuities only by a Bechtel NDE Level II or III certified by examination tothis procedure to ensure understanding of the referenced code and this procedure.

10.1.1.1 In cases where there is a question regarding the surface condition of theveld on the interpretation of the radiograph, the fi.la shall be compared to theactual . weld surf ace for interpretation and detefaination of acceptability.

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10.1.2 The Bechtel NDE Level II or III shall record on a review form accompanyingthe radiographs, the interpretation of each radiograph and disposition of thematerial examined.,

10.1.3 The information required in paragraphs 11.2 and 11.3 shall accompany eachof radiographs.set Reference to a standard setup is acceptable if descriptionsof this standard setup are readily available.

10.2 For Section III, examination of material adjacent to or beneath a weld orweld build-up shall be as acated in the specific material specification orNB-2500, NC-2500 rnd ND-2500 as applicable.

10.3 Welds that are shown 'by radiography to have any of the following types ofdiscontinuities shall be judged unacceptable.

1) Any type of crack or zone of incomplete fusion or penetration.

2) Any other elongated indication which has a length greater than:

1/4 inch for t up to 3/4 inch inclusive,1/3 e for e from 3/4 inch to 2-1/4 inch inclusive,3/4 inch for e over 2-1/4 inch.(t = thickness of the thinner portion of the veld)

3) Any group of indications in line that have an aggregate length greaterthan e in a length of 12t, except when the distance between thesuccessive imperfections exceed 6L. (t = thickness of weld, L =

pE length of the longest imperfection in the group)

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Documen t No. RT-ASME III/XI Na v. 4 (For 1.imerick Only) Fame 10 of 19

4) Rounded indications in excess of those specified in the rounded-

= indications charts of ASME III, Appendix VI, except for subsection NF,in which rounded indications are not a factor in the acceptability ofwelds which are radiographed.

5) Root concavity on single welded circumferential butt velds, which-

displays a higher radiographic film density than the density of thethinner member of the two sections being joined.

10.3.1 Internal root veld conditions are acceptable when the density change asindicated in the radiograph is not abrupt.

10.4 For Section XI,1980 Edition with Winter 1981 Addenda examinations,discontinuities are unacceptable if after characterization (paragraphs 10.4.1 and10.4.2) they exceed the allowable a/t, % value when compared to the applicableacceptance Table 4 (ferritic) or Table 5 (austenitic and high nickel alloymaterial).

10.4.1 Discontinuities shall initially be characterized as surface indications.- This is achieved by measuring the length (1) of the discontinuity, then dividing

that dima.nsion by 2. This calculation provides the "a" dimension, which isdivided by the wall thickness (% 100), and a realo (a/t, 2) is derived for

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comparison to the "surface" column in the acceptance tables.

10.4.2 Should a discontinuity be evaluated to be an unacceptable surface

O indication, the actual throughwall dimensions "S" and "a" may be determined usingUT or other approved methods. This will determine if the ladication is surface orsubsurf ace and a new ratio (a/t, %) may be derived and compared to the applicablecolumn in the acceptance tables.

10.5 Regardless of Code or material, acceptable significant indications thatrequire evaluation and interpretac!on to determine their acceptability shall berecorded and the disposition indicated on the review form. The method ofdetermining acceptability (i.e., visual, density check, dimensional, other NDEmethods, etc.) shall be noted on the radiographic review form. Supplementarvdocumentation as necessary shall ba included with the final report.

10.6 Areas that have been repaired shall be reradiographed to the requirementsof this procedure. The repair radiographs shall be identified by an R1, R2, etc.,as appropriate. The radiograph of the repaired area shall extend beyond theropair to the extent necessary to assure that the total area repaired has beenradiographed.

NOTE: It is generally recommended to have radiographic coverage 2 inchesbeycnd the length of the repair. In some instances, hosever, it

may be necessary to reradiograph the adjacent views to prc,ve thatcoverage has been attained.

10.6.1 The original radiograph of the rejected area shall be available forcomparison with the repair radiograph to assure acceptability of the repair andadequacy of coverage.

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Documen t No. RT-ASNE III/XI Re v . 4 (For Limerick Only) Page 11 of 19

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11.0 RECORDSI'')"#

A 11.1 The form attached to this procedure shall be used.

11.2 As a minimum, the following information shall be recorded:

A 11.2.1 Report number, date, Bechtel job number, name of the subcontractorcompany, and the applicable ASME Code Section. More than one code reference maybe documented on a single report.

11.2.2 Weld and/or component designation.

11.2.3 Radiation source type. *

11.2.4 Film brand type.'

11.2.5 A film quality evaluation covering density and film quality.11.2.6 The name and certification level of personnel performing and/orinterpreting radiograpFy.

11.3 The following information shall either be providad on each film jacket.orf o nn.report.

11.3.1 Shooting sketch showing the geometric arrangement of source, weld, film,penetrameters or reference to a standard shooting sketch.O 11.3.2 Source to veld or object distance.

11.3.3 Effective focal spot of the radiation source.

11.3.4 Calculated geomet ric unsharpness..

11.3.5 Shim thickness.

11.4 All records of radiographic examination including informational exposuresshall be submitted to the responsible Bechtel individual for disposition. Finalacceptance radiographs shall be maintained with the permanent job files. Eachexposed film shall be maintained in such a manner that there is no e.ontact betweenthe films, e.g., interleaving paper between the film.

A 11. 5 A copy of the certification records for all personnel performing orevaluating radiographic examination to this procedure and a copy of thecertification record of the examiner who certified them, shall be maintained onfile at the jobsite.

11.6 Complete qealification and certification records for Bechtel NDE personnelare maints'Ted on file at the Materials and Quality Services office in SanFrancisco.

12.0 NONDESTRUCTIVE EXAMINATION SUBCONTRACTORS,

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)('T' A 12.1 A subcontractor may be authorized to use this procedure, subject to PEco'sEJ approval.

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Document No. RT-ASME III/XI "4 (Tcr Limerick Only)Rev ..

Fame 12 of 1912.2

Before a subcontractor procedure is used, the proposed radiographic/'

\-}/ examination procedure shall be submitted for review by a Bechtel M&QS Level IIIand approval by Bechtel Project Engineering. Subcontractor radiographicexamination procedures which will be used for ASME Section XI purposes alsorequire review and approval by PECo Engineering. Approved procedures shall remainpermanently on file at the jobsite.

A 12.2.1 The subcontractor's procedure shall be equivalent in all essentialrespects to this procedure and shall be qualified to meet the referenced codes andsections specified in this procedure.

A 12.3 Records of radiographic examination performed by a nondestructiveexamination subcontractor shall contain the same information as raquired byparagraph 11.0 of this procedure.

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12.4 A Bechtel NDE Level II or Level III shall be responsible for theevaluation and disposition of all radiographic examination results and reportsprepared and submitted by the NDE subcontractor's personnel.

A 12.5 Complete qualification and certification records for each 1Entsubcontractor individual who will be performing rad.lographis 4saminations' to thisprocedure, and the qualification and certification record of the examiner who ,certified each individual, shall be submitted for review and acceptence by aBechtel Level III within M&QS prior to the beginning of any examination.

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TheSubcontractors vricten practice for qualification and certification of NDEpersonnel per references 2.4 and 2.5 of this procedure shall be submitted for

} review and acceptance by Bechtel M&QS.

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Document Mc. RT-ASME III/XI Re v . 4 (For Limerick Only) Page 13 of 19

mb TABLE 1

INominal | | Type of IPenetrameteri Minimum | |loutside | | Exposure | Table | Nunber of i Figure |IDiameter! I and Viewing 1 (1) (2) | Exposures (3)| (4) lI i | Dbl. Wall Exp. I 3 | 2 | 1(E) || 3-1/2" lElliptical 1D11. Wall Viewing i I (0,90) | || | | Dbl. Wall Exp. I 3 1 4 1 1(C, D, lI or |Elliotical ISgl. Wall Viewing | |(0,90,180,270)l or E) || | | Dbl. Wall Exp. i 3 1 3 i 1(F) || Less ISuperimposedlDbl. Wall Viewing | | (0,60,120) l ll j | Dbl. Wall Exp. I 3 j 4 | 1(A or 3)|! Above IContact | Sal. Wall Viewing i l(0,90,180,270)| |i l ISgl. Wall Exp. I 2 1 1 1 2( A or 3))

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| 3-1/2" | Panoramic |Sgl. Wall Viewing | | | || | ISgl. Wall Exp. | 2 j 4 | 2(C or D)|| | ISal. Wall Vievimr I | (0,90.130,270) l || | |Sgl. Wall Exp. I 2 i 4 | 2(E or F)l| 1 ISal. Wall Viewins I 1(0,90,180,270)I I.

NOTES:_

1) Penetrameter selection per Tables 2 and 3 shall be based on nominal singlewall thickness plus the reinforcement permitted by the referencing Codesection. For any material thickness range, a thinner penetrameter thanlisted for that range may be used, provided all other requirements forradiography are met.

2) Techniques other than those described in Table 1 may be used with theapproval of an M&QS NDE Level III individual or approved designee.

3) Location markers shall be placed as follows:

Source side for radiographic techniques shown in Fig. 2(E or F)Film side for radiographic techniques shown in Fig. 2(C or D), 1( A, B, C or D)Either side for radiographic techniques shown in Fig. 1(E or F),Fig. 2(A or 5)

For double-wall viewing, at least one location marker shall be placed on theoutside surface adjacent to the weld.

4) PEco Engineering approval is required prior to using the radiographictechniques shown in Figures 2(B), 2(D) and 2(F) for ASME Section XI purposes.

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Docum nt No. RT-ASME III/XI Rev. 4 (For Limerick only) Page 14 of 19

TABLE 2

MATERIAL THICKNESS , PENETRAMETER DESIGNATIONS, AND ESSENTIAL

HOLES FOR SINGLE-WALL RADIOGRAPHIC TECHNIQUE

Penetrameter

Source Side Film SideNominal

Single-WallMaterial Thickness Essential EssentialRange, in. Designation Hole Designation Hole

Up to 0.25 incl. 5 4T 5 4Tover 0.25 thru 0.375 7 4T 7 4TOver 0.375 thru 0;50 10 4T 10 4TOver 0.50 thru 0.625 12 4T 12 4TOver 0.625 thru 0.75 15 4T 12 4TOver 0. 73 thru 0. 875 17 4T 15 4TOver 0.875 thru 1.00 20 27 15 2TOver 1.00 thru 1.25 25 27 17 JTOver 1.25 thru 1.50 30 2T 20 2TOver 1.50 thru 2.00 35 2T 25 2TOver 2.00 thru 2.50 40 2T 30 2Tover 2.50 thru 3.00 45 2T 35 2TO Over 3.00 thru 4.00 50 2T 40 2TOver 4.00 thru 6.00 60 2T 45 2T

.

TABLE 3

MATERIAL, THICKNESS, PENETRAMETER DESIGNATIONS, AND ESSENTIA'.

HOLES FOR THE DOUBLE-WALL TECHNIQUE

Penetrameter

Film or Source SideS ingle-Wall

Material Thickness EssentialRange, in. Designation Hole

O thru 0.375 10 4TOver 0.375 thru 0.625 12 4TOver 0.625 thru 0.875 15 4TOver 0,875 thru 1.00 17 4TOver 1.00 thru 1.50 25 2T -

Over 1.50 thru 2.50 30 2TOver 2.50 thru 3.00 35 2T

Q over 3.00 thru 4.00 40 2Tv3 over 4.00 thru 6.00 45 2TE -.,

E;23 --

__- - . . _ _. , _ ____- __ _ ,--. _._ , _ ,

Fero HQS- O O~

8tev. 1 e,d

- OTABLE 4 o

aAl.LOWABLE PLANAR INDICATIONS e

ga,Material: Ferritic steels that meet the requirements of NB-2300 and e

I

the specified minimum yie id strength of 50 kai or lean .

. [at 100*F

Volumeeric EnamoreJen asethsd, Nesannal Wall Thkhmets,' 8 , ks. $e

e0312 10 2.0 30 4 0 and ever m

>,

kAspect T.wfme Saeemrface sustae Seenstface Surface Seeinface Shrface Seesurfme Swfue $4surfme, %:ig t<cateen, l.arau u tam q, WmA u saecas.eg, hdicasseau s

inecasien, I*=='' Indication, laa-a *' "i. eW els, % els, % els, % e st, % e tt, % e tt, % e tt, % els, % els, % e ls, %

m,

1 Prew E -maam0 00 F.4 92Y 6.7 84Y SF F.2Y 4~ SSY 3.7 4 6Y

| 00S 7.9 96Y F.2 S.FY 62 F.SY SO 6. lY 40 4 SY0 10 8.7 10 4Y F.S 9.SY 68 8. !Y S.S 6 6Y 4.3 S2Y; 0.15 96 ll.SY SS 10.SY F.S 9 OY 6.1 7.3 Y 48 SSY0 20 96 ll.SY 9.9 II SY S4 10.lY 6.9 8 2Y S4 6 SY g02S 96 II.SY 99 II SY 9S Il 4Y F.8 9. lY 6I F.3Y 40.30 96 ll.SY 9.9 alSY 95 ll.4 Y 88 10.SY 6.9 8.2 Y

*

j 0.35 96 ll.SY 9.9 II SY 95 114Y 88 II SY 6.9 9 3Y p0 40 96 !!.SY 9.9 !! SY 95 I! 4Y 88 II SY 69 10.4 Y0 45 96 ll.SY 99 It AY 9S II .4 Y da ll.SY 69 II.6Y '=20 SO 96 31.SY 9.9 Il SY 9.5 31.4 8.8 I1.SY 69 II 6Y klatervice Esamination

r-0 00 11.1 13 8Y 10 0 12.6Y SS RO SY f.0 8. F* S.S 6.9Y E'0 05 !! S l4 4Y IP S 13 SY 9.3 II.2 Y F.S 9.l Y 60 7.2Y $0 10 13.0 15 6Y ll S 14.2 Y 10.2 12.l Y dl 9.9Y 64 7SY g*

,

i 0 IS 14.4 I F.2Y 13.2 IS.FY 13.2 13.SY 4.1 10.9Y F.2 S.FY re'

0 20 14 4 SF 2Y I48 II.FY R2 6 IS BY 18 3 12.3 Y S.1 9 7 Y' o0 25 14 4 I F.2 Y le s I F.F Y I42 I F.I Y 18.7 13.9Y 9.1 10 9Y D0 30 14 4 I F.2 Y I48 IF.FY I42 IF.lY 13.2 IS.FY 10.3 12.3 Y k,

] 0 35 14 4 172Y le s IF.F Y I42 I F. l Y $ 3.2 I F.F Y 10.3 13 9Y "

0 40 F4 4 IF 2Y I48 IF.FY I4.2 I F.lY $ 3.2, IF.FY 10.3 IS 6Y0 45 I44 IF 2Y I48 I F.F Y I42 I F.IY 11.2 IF.FY 10 3 IF.4Y0.50 I44 I F.2 Y I48 I F.F Y I42 I F.lY 13 2 IF.FY 10.3 I F.4 Y

s"e) 860iLS: m! 818 For anaernwd ate flaw aspect sateos al/ arut thsharst 8, lanear enterposation as pernussese.j (25 e as montanal ma18 thukaess er actuas mass sauchness as deternianed 6y UI emanunaseen. ": ela the toaas depsh of a saatna., face en& cation es 2a.

) t48 Y = 45 tellia1st - 5 lo. If Y < 0 4. she flaw andicateen as cansatied as a sierface uutuatumi. If Y > I 0, se Y - I 0. oj ei

.1

1

i

..-

^b

5

Document No. RT-ASME III/XI Ra y. 4 (For Limerick Only) Page 16 of 19

O.'

TABLE 5

ALLOWABLE PLAFAR INDICATIONS '

Material: Austenitic steels and high nickel alloy sterialthat meet the requirements of N5-2300 and the specified

minimum yield strength of 50 kai or less at 100'T

Volumetric Esammacon Meeod, Nomad Wall Thickness,' 8 t, in.

0.31* 1.0 2.0 3.0~

Asaect Surfxe Suterfme $sfue Swtsurfwe Surfue $4surfme Swfue SuesurfaceAabo,' Indication, Irecauen8d Indation, Ireuuon 8' lasimon, frecauen8' in6scation, Irecaoon 84e // e /t, % e /t, % e /t, % e /t, % e/t,% vit, % e tt, % ele, %

Presernce Euminauon0.00 9.4 9.4 r SJ 8.SY 8.0 8.0f 7.6 7.6f0.05 f.6 9 67 8.6 8.6 f 8.2 8.7Y '7.7 7.7Y0.10 9.8 9 8Y 88 8.8Y 8.3 e.JY JJ FJr0.15 9.e 9 9f L9 L9Y E4 L4f 7.9 7.9f0.20 10.0 10.0f 9.1 9.lf 8.6 8.6Y S.1 S.1f -

'C.2 5 10.0 '10.0 f 9.2 9.2 f 0.7 8.7f 8.2 M.2f0.30 10.0 10.0f 9.4 9.4 f 8.9 8.91 8.3 8.J f0.3 10.0 10.0f 9.5 9.57 9.0 9.0 f 8.5 8.57

p 0.40 10.0 10.0 f 9.7 9.7 f 9.1 9.?.T 8.6 8.6fx 0.45 10.0 10.0Y 98 9.8 Y 9.3 9.3 Y 8.7 8.7Y

0.50 10.0 10.0 f 10.0 10.0 f 9.4 9.e f 4.9 8.9f

Inservice Esarninacon0.00 11.7 11 77 10.6 10.'a f 10.0 ',0.0 f 9.5 9.Sf0.0 $ 12.0 12.0 f 10.7 10.7 f 10.2 10.2 f 96 9 6f ,

0.10 12.2 ? 1.2 Y 11.0 11.0* 10.4 10.4 Y 9.7 9.7 Y

0.15 12.4 12.4r 11.1 * l.1Y 10.5 10.SY 9.9 9.9 fa

0.20 12.5 12.5 Y 11.4 11.4 f 10.7 10.7 Y 10.1 10.1Y0.25 12.5 12.SY 11.5 11.57 10.9 10.9 f 10.2 10.2 f0.30 12.$ 12.SY 11.7 11.7 f 11.1 11.1Y 10.4 10.4 f0.35 12.5 12.3r 11.9 11.9 f 11.2 11.27 10.6 10.6f0.40 12.5 12.57 12.1 12.17 11.4 11.4 f 10.7 10.7f0.45 12.5 12.5Y 12.2 12.2 f 11.6 11.6Y 10.9 10.9f0.50 12.5 12.SY 12.5 12.57 11.7 11.7 f 11.1 11.1r

NOTES: .

(1) For intermediate flaw assect raues o // arvi thickriesa f, linear interpolation is permessabee.

|t 3) e is ..*menal wall thickness of actual mail rucaness as setermined By U T eaarmnation.f 31 *(he total septh of a sAsurf ace ina.u' son es 2o.

l (4) Y = (3 It)/te it) = 3 /s. Lf f < 0.4, tre flaw insiution is classafeed as a surf ace indeucon. If f > 1.0, use f = 1.0.

|

|

|

|,

|

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,

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o s,j .l. 85l

.-- -. ,,. . _ - - _ _ _ . . .__ _ _ _ _ _

-

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'

.

1

Document tio. RT-ASME III/XI pa y . 4 (For Limerick only) 3. 1s u n[7 og?.16152-

'

p.g, 19

S ou rc a Side Penetrameter Film Side Penetrameter

Source Source.)-C -0 >-t U.

. . . . . A k . . .''' ,a L . . . . . ps., , , ......,

/ l i # l i \ j!s.

-., , , . ., , o s

,

' a s o sI \ , ,

l \

Q)Y ''/g U ~, i \-'

%, ' 1 '!Q)/g L)a,'gy\'h. ' - T \. - '_-

, - ,

Film Film

(A) (B)Alternate Alte rnat e

Source SourceLocations Locations

- .Yp- --

.F-- __-

g | .

\ \

r gm .

! \ I j -

/'\ '

,

df f< \ $Ilf (/ r\ ( / ,\/ 1>- W

,_ ~^ Q

Film Film(C) (D)

_E ll.ip t ic al Superimposed- * -y y y-.~

I \ l \8

i s Source e i s Scurce i'I II \ I t \ ti 1 \ r Ii \ g

/ \ i i / \ i i# \ / l # \ /[|t V \ s y \' 'J

.L.... . . u- .L..../ \ / \

. . . .t .5 , , gi ,

/ ::: I I C 't ':: I i ::: I,

I I $ \ t I $ |y y

/ i 2 I / i 2 ig g' f 2 i 2g 1... g .I...i I ... ;::: e;=: r s,...s,'

/ - 8 ,'s \ 8-

" , . v .

Film Filp

(E) (F)

DotJBLE WALL RADIOGRAPHIC TECHNIQUESm.

E -.* FIGURE 1,

| 2;oo

t W GE

.__ _ . . . . __ _ _ _ _ _ - - .

..

r 15 'e7 0 21615 2.

Document No. RT-ASME III/XI Re v. 4 (For Limerick Only) Page 18 of 19

/~ Source Side Film SidePe ne t rame t e r Pe ne t rame t e r

piim sam

u.' p . .,@7 /, f

.. ~ ... ...-

A'

\||

c '(: r :. .r , .a. -,

Y Y / Y|h y I Source.

Soures

- .... g ...... (3....g.......' ,. /.

(A) (s)-

- _ _ _ -

y___ g ____ ___ g .__aI- %

N (% Y %'

I \I \ \ ; s o tI \I \ | \ \ \

O /,,\ y\,\ /y \ ly's !,

-g .w., , _ , - -- mom mr

FamFWm

(c) (n)

p Y py so-.a

| \ ; \ .', . ,

| v\ |u\ i V 's \|1 i _,,. .-F- -~p_ ..

f Ar 3 1 PdmFam.

u -'

= = l

E $ '

p '/Ar - - -c=:::- -- - ;::=___ ....

I-

@Ii (E). - . . . _

_EE FIGURE 2

0iL' a

_ _ _. _ _ - - _

.

At is 87 0 21.615 2.

Docuasnt tio. RT-ASME III/XI Re v. 4 (For Limerick Only) Page 19 of 19*

m

U

BECHTELNONDESTRUCTIVE EXAMINATION REPORT

(RAOlOGR AP+41C INTERPR ETATION)Pec,4GTANQ 40%wutta OAfa

40C peCCtcual A40 AlviliCat NO. ISO ANQ/Cm atLO meneetm. remgTm AutTgm Typt A40 mwwete

SECMftL Ilu SCCMTm ACTC n

AGGIFTANGE ITA40 ARD Gm GQQ g, WArtal AL TmCANESS A40 Tvre

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': ' N' :: :3- O::. . ! :' :::::::' t ::=" f, :!:'.L--- |: ::: = :, .

r ' :..:- " r ---- ', : = - it. :;= ::''- J ::::4-~ 1:, :::::'. ,

0 : 04. ::. 't :=:::.t :? :=:::: .!:::::' * -- " '-

p ggy FILM TECHNIQUE AND QUALITY wtLo ovAuty

M(WARK 3LOCATION *t=timauetta meLo usT AL oemsity87 %Ot4M

Lt DME ofeta caos Case

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