These special ASTM-E-1025 Penetrameters are available in sizes #1 through #4 with true 2% thickness and are offered in a range of materials. A notch system is used on the IQI to identify 8 grades of materials in order of increased attenuation, and lead figures identify the thickness of the material to be radiographed on the other end. In addition, the material and specification are etched into the IQI. Serialization and Calibration are available, as well as Encapsulation in clear, thin plastic and Wood Cases. Wood cases come in two sizes for encapsulated and non-encapsulated IQIs, and are engineered to prevent loss and damage by keeping IQI's firmly in place using a shock absorbing sponge rubber insert in the lid.
If true 2% thickness is not required, or if you require a size larger than #4, see:
Shims can be used when it is impractical to place the IQI directly on the object being radiographed. Some codes require that shims be used under IQIs to compensate for thickness of a backing ring or weld reinforcement. Their dimensions allow at least 1/8" clearance on each side of the IQI.
Step wedges that are used for calibration and evaluation of techniques are also available. When an object with varying thicknesses is radiographed a step wedge of the same material, incorporating the same thickness, may often be advantageously used.
General Dimensions
| Size | Length | Width | Image |
| #50 and Smaller | 1 1/2" | 1/2" |  |
Thickness
2% of the thickness of the material to be radiographed to the nearest fractional size.
Note: Hole diameters are the same as 0.25" IQIs; only thickness changes.
| Size | Actual IQI Thickness (2%) | Hole Diameter | Tolerance | Corresponding Shim/Mounting Block Thickness | ||
| 1 | .0010" | .0100 | .0200 | .0400 | +/- 10% | .050" |
| 2 | .0020" | .0100 | .0200 | .0400 | +/- 10% | .100" |
| 3 | .0030" | .0100 | .0200 | .0400 | +/- 10% | .150" |
| 4 | .0040" | .0100 | .0200 | .0400 | +/- 10% | .200" |
Minimum Thickness: 0.005" or per below table:
| Standard Image Quality Levels | |||
| Image Quality Levels | IQI Thickness | Minimum Perceptible Hole Diameter | Equivalent IQI Sensitivity* |
| 2-1 T | 1/50 (2%) of Specimen Thickness | 1 T | 1.4% |
| 2-2 T** | 2 T | 2.0% | |
| 2-4 T | 4 T | 2.8% | |
| Special Image Quality Levels | |||
| 1-1 T | 1/100 (1%) of Specimen Thickness | 1 T | 0.7 |
| 1-2 T | 2 T | 1 | |
| 4-2 T | 1/25 (4%) of Specimen Thickness | 2 T | 4 |
*Equivalent IQI sensitivity is that thickness of the IQI, expressed as a percentage of the part thickness, in which the 2 T hole would be visible under the same conditions.
**For Level 2-2 T Radiologic - the 2 T hole in an IQI, 1/50 (2%) of the specimen thickness, is visible
Sizes
True 2% Thickness for sizes:
Available Materials
IQI’s may be purchased with or without serialization, calibration and encapsulation. Add these additional options to your order if required.
Serialization Only: PN: RT-RC-P-Serialize
Serialization & Calibration: PN: RT-RC-P-Serialize-Cal
Encapsulation: PN: RT-RC-P-Encapsulate
Minimum Order Size is $75
Note: Serialized radiographic products are not returnable
| Description | Part # | Saved | Price | Select Option | Add to |
|---|---|---|---|---|---|
|
Individual IQI ASTM-E-1025, Plaque Type, True 2% Thickness, Size #1 (Specify Material)
Model #
|
RT-RC-P-E1025-TRUE2-#1-Master |
|
$48.00 | ||
|
Individual IQI ASTM-E-1025, Plaque Type, True 2% Thickness, Size #2 (Specify Material)
Model #
|
RT-RC-P-ASTM-E-1025-TRUE2-#2-Master |
|
$48.00 | ||
|
Individual IQI ASTM-E-1025, Plaque Type, True 2% Thickness, Size #3 (Specify Material)
Model #
|
RT-RC-P-E1025-TRUE2-#3-Master |
|
$48.00 | ||
|
Individual IQI ASTM-E-1025, Plaque Type, True 2% Thickness, Size #4 (Specify Material)
Model #
|
RT-RC-P-E1025-TRUE2-#4-Master |
|
$48.00 | ||
| Individual IQI, Serialize | RT-RC-P-SERIALIZE |
|
$1.00 | ||
| Individual IQI, Serialize and Calibrate | RT-RC-P-SERIALIZE-CAL |
|
$9.00 | ||
| Individual IQI, Encapsulate | RT-RC-P-ENCAPSULATE |
|
$4.00 | ||