Instruction for radiographic testing DWSI

INSTRUCTION FOR RADIOGRAPHIC TECHNIQUE 1 of 3 PAGE: 1. SCOPE OF APPLICATION:  The instruction is applicable for the radiographic testing of Steel single V- butt weld of pipe with 75 mm outer diameter (OD) by using X-rays 2. SAFETY REQUIREMENT:  Make test shot to test boundary exposure limit.  Use the Survey Meter for radiation monitoring survey during exposure.  Use Lead sheet or collimator where applicable. 3. INSPECTION STANDARD / SPECIFICATION:  ASME Section V, Article 2 4. RADIOGRAPHIC EQUIPMENT: X-Ray Machine  Type : DDGTNDT  Model : XXG-2505  Control Unit Serial Number : 16840  Tube Unit Serial Number :  Focal Spot Size : 2.0 mm × 2.0 mm 5. FILM:  Film Type : Fuji 100HD  Film Size : 102 mm x 254 mm (4” x 10”) 6. INTENSIFYING SCREEN:  Material : Lead (Pb)  Thickness : 0.125 mm (Both Front & Back) 7. IQI/PENETRAMETER:  Type : Wire  Designation : 10FEDIN / 10FEEN (Source Side)  Position of IQI : Smallest wire at the most outer edge 8. TEST SPECIMEN:  Type : Pipe (No :………………………………)  Material : Steel  Outer Diameter : 75.0 mm  Thickness of Parent Material : 6.0 mm  Thickness of Weld Material : 9.0 mm  Surface Condition : As Welded 9. EXPOSURE DETAILS:  X-ray Machine : DDGTNDT (XXG-2505)  Kilovoltage : 160 kV  Tube Current : 5 mA  Exposure Time : ……………………. 10. RADIOGRAPHIC ARRANGEMENT:  Technique : Double Wall Double Image (DWDI)  Source to Film Distance (SFD) : 700 mm  Effective Length of Test Piece : 40 mm (πD/6) (π = 3.142, D = Outer Diameter) (See Figure 1)

INSTRUCTION FOR RADIOGRAPHIC TECHNIQUE

PAGE:

2 of 3

Source

Location Makers

IQI

15 0 SFD = 700 mm

Film

Lead Sheet 1/3 or 1/4 of SFD

Figure 1: Radiographic Arrangement

11. LOCATION MARKING AND IDENTIFICATION OF RADIOGRAPH:  Location markers, which will appear as radiographic images on the film should be placed on test piece (not on the film cassette) and their location should be written/marked on the surface of the test piece (Figure 2). Weld Area Specimen Identification

X

Location Marker

10FEDIN

πD/6

ABC

Y Lead Marker Arrangement:    

INS-RT-T7 KSS ABC 2015 03 15

: Document No. : Personnel No. : Specimen No. : Date (YYYY MM DD)

IQI

Film

Steel Plate

INS-RT-T7 KSS ABC 2015 03 15

Radiographic Identification (using Lead markers)

Figure 2: Location marking and Identification of Radiograph

INSTRUCTION FOR RADIOGRAPHIC TECHNIQUE PAGE: 1. SCOPE OF APPLICATION:  The instruction is applicable to view the radiograph INS-RT-T7 and record results 2. INSPECTION STANDARD / SPECIFICATION:  ASME Section V, Article 2 3. EQUIPMENT:  Film viewer :  Densitometer :

(Manufacturer: IENDT, Model: FV-2008) (Manufacturer: BARBIERI Electronics, Model: Densy 210 E)

4. PROCEDURE: a. Measure or estimate the density of radiograph and record. b. Determine the sensitivity of the radiograph. c. Fill all the information in the film cover and report sheet as in attachment A and B, respectively. d. Print the film cover and report 5. REQUIREMENT FOR RADIOGRAPH:  Radiograph shall be accepted if they meet the following requirements: a. Density on the area of interest : 1.8 - 4.0 b. Sensitivity : Wire no. 13 should be visible (DIN/EN) c. IQI/Penetrameter : Should be appeared as in instruction d. Artifacts : Shall not appear on the area of interest

3 of 3

INSTRUCTION FOR WIRE TYPE IQI SELECTION PAGE: 1. Weld Thickness Versus Diameter of ASTM E 747 Wire Type IQI: Weld Thickness Essential Wire Diameter Inches mm Inches mm 0 - 0.250 0 - 6.4 0.008 0.20 >0.250 - 0.375 >6.4 - 9.5 0.010 0.25 >0.375 - 0.500 >9.5 - 12.7 0.013 0.33 >0.500 - 0.750 >12.7 - 19.1 0.016 0.41 >0.750 - 1.000 >19.1 - 25.4 0.020 0.51 >1.000 - 2.000 >25.4 - 50.8 0.025 0.64 2. Weld Thickness Versus Diameter of ISO Wire Type IQI: Weld Thickness Inches mm 0 - 0.250 0 - 6.4 >0.250 - 0.375 >6.4 - 9.5 >0.375 - 0.500 >9.5 - 12.7 >0.500 - 0.750 >12.7 - 19.1 >0.750 - 1.000 >19.1 - 25.4 >1.000 - 2.000 >25.4 - 50.8 3. DIN / ISO / EN Wire Type IQI: Designation 1 FE DIN (1 ISO 7) 6 FE DIN (6 ISO 12) 10 FE DIN (10 ISO 16) 13 FE DIN (13 ISO 19)

3.20 1 1.00 6 0.40 10 0.20 13

2.50 2 0.80 7 0.32 11 0.16 14

Essential Wire Diameter Inches mm 0.008 0.20 0.010 0.25 0.013 0.33 0.016 0.41 0.020 0.51 0.025 0.64

Wire Diameter/ mm Corresponding wire number 2.00 1.60 1.25 3 4 5 0.63 0.50 0.40 8 9 10 0.25 0.20 0.16 12 13 14 0.125 0.100 0.080 15 16 17

1.00 6 0.32 11 0.125 15 0.064 18

1 of 1 ASTM Set Letter A A&B B B B B

Wire Identity 13 12 11 10 9 8

0.80 7 0.25 12 0.100 16 0.050 19