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ASME E1025 ASTM E747 DIN 54 Wire Penetrameter Penetrometer Image Quality Indicator IQI
Image quality meter (image quality indicator, penetrometer) is a device for measuring the radiographic sensitivity of radiographic photographs. According to the image of the image quality meter displayed on the negative, the quality of the negative image can be judged, and the technology of transillumination, film darkroom processing, defect detection ability can be evaluated.
EN 462-1 Wire Type were introduced as a EUROPEAN STANDARD to supersede the German Standards
(DIN 54.109) and the British Standards Institute (BS3971:1980 type 1) Image Quality Indicators. Each
indicator consists of a series of seven parallel wires of different thichkness mounted and encapsulated
between two thin sheets of transparent, flexible PVC. A lead monogram indicates the number of the thickest
wire, the material and the EN symbol.
Wire Diameters:
Indicator Sizes:
There are four sizes of EN Image Quality Indicators.
Size 1 – contains wire numbers 1 to 7 and used for material thicknesses in
the range of 40 t 160mm
Size 6 – contains wire numbers 6 to 12 and used for material thicknesses in
the range of 12.5 to 50mm
Size 10 – contains wire numbers 10 to 16 and used for material thicknesses
in the range of 5 to 20mm
Size 13 – contains wire numbers 13 to 19 and used for material thicknesses
in the range 2.5 to 10mm
All sizes are available in Steel(Fe), Aluminium(Al), and Stainless Steel(SS). Copper(Cu), Zirconium(ZR) Image
Quality Indicators are only available in sizes 6 and 10. Nickel(Ni) Image Quality Indicators are only available in
sizes 6, 10 and 13.
As an illustration the identification (i.e. lead monogram) for, say Size 10 (Wire numbers 10 to 16) in steel(Fe)
would be 10 FE EN.
DIN 54 109 Wire Type Image Quality Indicators are similar to the EN 462-1
I.Q.I’s, the wire diameters are the same, and there are the same wire
numbers in each size of indicator. The only difference being that the lead
monogram reads DIN rather than EN.
Example:
Size 6Wire numbers 6 to 12) in Stainless Steel(SS) would be 6 DIN SS.
EN 462-2 Stepwedge/Hole Type Penetrameters
Stepwedge in shape and available in four Model Numbers H5, H9 and H13 in Steel.
ASTM E747 Wire Type Penetrameters consists of a series of six parallel wires of different thicknesses,
encapsulated between two thin sheets of transparent, flexible PVC. Lead characters identify the thickness of
the thickest wire, and the material group(1-FE, 01-Ti, 02-Al, 03-Mg, 3-Ni, 4-Cu). The letters ASTM are also
included.