Table 1:- Parameters for Gamma Ray Radiographic Qualification Of 36 " Diameter Butt weld

I. CLIENT NAME / CONTACT NAME:

Date Test Conducted:

JOB DESCRIPTION / JOB NO.:

QUALIFICATION NO.: Gamma Ray Procedure

SPECIFICATION: API 1104

MATERIAL: API 5LX 65

PIPE SIZE: 36" nominal

WALL THICKNESS: .938” W.T. A . Radiation Source

1. Type of SourceGamma Ray: Gamma Ray-Gamma Iridium 192

2. Type of EquipmentInternal: Internal

B . Intensifying Screens

1. Type of Screens: LeadThickness: 0.005"

2. Placement: Front and Rear C . Film

1. Film Type: Agfa D42. Number in Cassette: One3. How Film is Viewed Dry

D . Exposure Geometry 1. Method: SWE/SWV

2. Focal Spot Size: .153” 3. Source-Film Distance: 18" 4. Object Film Distance: .938 " 5. Radiation Angle to Object: 90 degrees6. Heat Shield: N/A 7. No. Exposures per Weld: One8. Geometric Unsharpness 0.008"

9. Density 2.0- 4.0 10. Sensitivity Film Side 2% source side 2%

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Table 1:- Parameters for Gamma Ray Radiographic Qualification Of 36 " Diameter Butt weld

SWE /SWV 0.938 "

E. Exposure Conditions

1. Milliamperes: Time: N/A

2. Curies: 46 ciTime: 6min 36 sec.

F . Processing

1. Automatic: AutomaticManual:(check one)

2. Development: Time:Temperature:

3. Cycle Time - Wet Viewing: N/A

4. Cycle Time - Dry Viewing:

G . Penetrameters

1. Type: ASTM Standard Wire Type Penetrameters

2. Identifying No.: 1 ASTM B

3. Material: Steel

4. Geometric Unsharpness: 0.02 inches or better

5. Sensitivity to be Achieved: 2.0% or better

6. Placement: 1 penetrameters on centre of each film

H Density Range 2.0 -4.0 through the thickest portion of weld metal.

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