Changes in DIN EN ISO 3059 (Non-destructive testing - Penetrant testing and magnetic particle testing - Viewing conditions) version 2001 and 2011

DIN EN ISO 3059:2001 has been reworked in the year 2011 and came into effect in the year 2012 as ISO/FDIS 3059-2011.

The rework was needed to integrate the LED-technology for the testing with daylight (white light LEDs) as well as the fluorescent testing (in the dark) using UV-A emitting sources (UV-LEDs).

The most fundamental parameters in the use of UV-LED-Lamps in the fluorescent crack testing have been added in particular during the rework. For example the peak wave length of the emitted spectrum is allowed to deviate by ±5nm from the classic value of 365nm, however the full width half maximum (FWHM) peak has been limited to 30nm.

Unfortunately, absolutely essential parameters such as stability of the UV-radiation, a monitoring of battery operated lamps, the minimum working distance or the ban of pulse- or high residual ripple-operated lamps have not been realised so far. It is to be expected that in the coming years another rework will take place to add the missing parameters and thereby increase the exclusive usage of high quality and perfectly tuned UV-A-LED-Lamps to sustainably improve the quality of the inspection.

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