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- Sensitivity Calculations Question Answers CSWIP NDT Course
- (0.25/25) x 100 = 1.0%
- (4/100) x 2 = 0.08 inch, a designation 80 penetrameter. 08 inch = 2.03 mm
- (0.2/11) x 100 = 1.82%
- (0.13/8) x 100 = 1.625%
- (0.16/7.1) x 100 = 2.25%
- (0.125/6.2) x 100 = 2.02%
- (0.08/6.2) x 100 = 1.29%
- (2/10.3) x 100 = 1.94%
- 2% of 40 = (40/100) x 2 = 0.8, this is W7 in the BS EN 462-1 series.
- 1% of 32 = (32/100) x 1 = 0.32, this is W11 in the BS 3971 series.
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Keywords for this article are Sensitivity Calculations Question Answers CSWIP NDT Course.
Sensitivity Calculations Question Answers CSWIP NDT Course
- A SWSI radiograph of a butt weld in 25 mm thick steel plate shows 6 wires on a BS 3971 9-FE-15 IQI. Calculate the sensitivity.
(0.25/25) x 100 = 1.0%
- An ASTM E 1025 plaque type IQI is required for the radiography of a butt weld in 4 inch thick steel plate. If the required sensitivity is 2-2T what plaque thickness is required?
(4/100) x 2 = 0.08 inch, a designation 80 penetrameter. 08 inch = 2.03 mm
- A DWDI radiograph of a weld in 2 inch pipe shows 4 wires on a DIN 54109 10-ISO-16 IQI. If the pipe wall thickness is 5.5 mm what is the sensitivity?
(0.2/11) x 100 = 1.82%
- A SWSI image radiograph of a butt weld in 8 mm thick steel plate shows 4 wires on an ASTM E 747 1-A IQI. What sensitivity has been achieved?
(0.13/8) x 100 = 1.625%
- A DWSI radiograph of a weld in a 6 inch schedule 40 pipe shows 2 wires on an EN 462-1 13-FE-EN IQI. If the wall thickness is 7.1 mm what sensitivity has been achieved
(0.16/7.1) x 100 = 2.25%
- A DWDI radiograph of a 3 inch schedule 10S stainless steel pipe shows 6 wires on a
BS EN 462-1 10-FE-EN IQI. If the wall thickness is 3.1 mm what sensitivity has been achieved?
(0.125/6.2) x 100 = 2.02%
- A DWDI radiograph of a 3 inch schedule 10S stainless steel pipe shows 6 wires on a
BS 3971 4-FE-10 IQI. If the wall thickness is 3.1 mm what sensitivity has been achieved?
(0.08/6.2) x 100 = 1.29%
- A DWSI radiograph of a weld in a 6 inch schedule 80 pipe shows 2 wires on a BS 3971 4-FE-10 IQI. If the wall thickness is 10.3 mm what sensitivity has been achieved?
(2/10.3) x 100 = 1.94%
- Which wire in the BS EN 462-1 series would indicate a sensitivity of 2% on a SWSI radiograph of a butt weld in 40 mm thick steel plate?
2% of 40 = (40/100) x 2 = 0.8, this is W7 in the BS EN 462-1 series.
- Which wire in the BS 3971 series would indicate a sensitivity of 1% on a SWSI radiograph of a butt weld in 32 mm thick steel plate?
1% of 32 = (32/100) x 1 = 0.32, this is W11 in the BS 3971 series.
| Weld description | Technique | IQI Type (number of wires visible) | Sensitivity % |
| 27 mm thick plate | SWSI | Din 62, 10-16 (2) | |
| 13mm thick 323 mm OD pipe | DWSI | BS3971 9FE15 (5) | |
| 5.5 mm thick 60.3 mm OD pipe | DWDI | BS3971 4FE10 (4) | |
| 30 mm thick plate, 5 mm thick backing strip | SWSI | EN462-1 6FEEN (5) | |
| 4 inch thick plate | SWSI | Calculate plaque type penetrameter thickness for ASME 2-2T requirement |
Keywords for this article are Sensitivity Calculations Question Answers CSWIP NDT Course.
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