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- since 1996 -
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Technical Discussions
Nafis
Nafis
15:09 Aug-21-2019
Lead Marker for RT

Hi guys,

i have a question whether there are other options other than lead marker for RT works..

i am wondering whether there is a type of pen(i literally mean pen) that contain lead inks/filler to replace the conventional lead markers that are widely used in this industry.

thanks in advance guys. cheers..

    
 
 Reply 
 
SF
SF
08:38 Aug-22-2019
Re: Lead Marker for RT
In Reply to Nafis at 15:09 Aug-21-2019 (Opening).

SFD

    
 
 Reply 
 
Matthias
NDT Inspector, CEO
Dreifeld Materialprüftechnik, Germany, Joined Sep 2005, 85

Matthias

NDT Inspector, CEO
Dreifeld Materialprüftechnik,
Germany,
Joined Sep 2005
85
10:40 Aug-22-2019
Re: Lead Marker for RT
In Reply to Nafis at 15:09 Aug-21-2019 (Opening).

I don't think so since its toxic.

    
 
 Reply 
 
Godfrey Hands
Consultant,
PRI Nadcap, United Kingdom, Joined Nov 1998, 301

Godfrey Hands

Consultant,
PRI Nadcap,
United Kingdom,
Joined Nov 1998
301
09:24 Aug-26-2019
Re: Lead Marker for RT
In Reply to Nafis at 15:09 Aug-21-2019 (Opening).

Hi,
I have seen radiographers use a typed or printed ID info on a transparent sheet, and the film when exposed to radiation has a small area (same size as the ID) covered with lead. After exposure to radiation, the film cassette was opened in the dark room and then the ID sheet was placed on the unexposed area and just that small ID bit exposed to light in a device.
This then transferred to ID info onto the film.

You have to be careful not to mix films up, but it is an alternative to using lead for ID.
You still need to use lead markers when testing larger areas with multiple shots (such as welds)


Godfrey

    
 
 Reply 
 

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