Tel.:44 (0) 1608 683 985

IE-NDT Ltd.,Unit C, Heath Farm, Swerford, OX7 4BN

Email; enquiries@ie-ndt.co.uk

IE-NDT Ltd.

Europes Leading Manufacturer and Supplier of;

IQI’s / Image Quality Indicators, Penetrameters,Duplex IQI, Spatial Resolution and Focal Spot Patterns,

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Radiation Safety

Lead Marker Tapes

The International Standards Organisation issued Standard No ISO 19232 in June 2013.  This replaces EN 462-1 but there is no practical difference as the Standard states that  “EN wire IQIs of EN 462-1:1994 and its designation are identical with ISO wire IQIs” The wire diameters and system of numbering follow the previous DIN practice.  IE-NDT manufactures EN 462-1 IQIs in steel (FE), Aluminium (AL), Copper (CU) and W6, W10 and W13 Titanium (TI).

Description. Wire type IQIs to EN 462-1:1994 manufactured by IE-NDT Ltd. comprise seven parallel wires 10, 25 or 50mm long, which are encapsulated in thin, transparent plastic along with a radio-opaque identification plaque. Each IQI is supplied in a wallet. For ease of recognition, the wallet carries stickers showing the IQI model and wire length it contains. These are colour coded:

     Blue          Yellow          Red          White
     Steel      Aluminium      Copper      Titanium

Quality Assurance. Manufacturing, including inspection, follows a written procedure, which forms part of a Quality Management System registered according to ISO 9001. Each IQI carries a unique serial number. The Declaration of Conformity according to ISO/IEC 17050-1 provides a complete manufacturing history as well as a printout showing the measured diameter of each wire.


The official description of an IQI reads, for example;

IQI EN W10 FE 50. This means an IQI containing wire

W10 to W16 in steel with a wire length of 50mm.

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