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Technical Discussions
Nick Welland
Other, Quality and NDT
Aben Technical Services, Australia, Joined Oct 1999, 42

Nick Welland

Other, Quality and NDT
Aben Technical Services,
Australia,
Joined Oct 1999
42
02:13 Jan-11-2010
Ultrasonic test block

Gentlemen,
What is the designation "TIF-block" referring to? Is it a block for setting gain levels?
Regards
Nick

    
 
 Reply 
 
Christoph Schnitger
Christoph Schnitger
11:17 Jan-11-2010
Re: Ultrasonic test block
In Reply to Nick Welland at 02:13 Jan-11-2010 (Opening).

Hello Nick,

sometimes a gamma projector called " bloc " . There was the former company " Sauerein " which produced a kind of gamma projector called " Gammamat TIF "

Maybe only an idea !

    
 
 Reply 
 
Nick Welland
Other, Quality and NDT
Aben Technical Services, Australia, Joined Oct 1999, 42

Nick Welland

Other, Quality and NDT
Aben Technical Services,
Australia,
Joined Oct 1999
42
04:09 Jan-14-2010
Re: Ultrasonic test block
In Reply to Christoph Schnitger at 11:17 Jan-11-2010 .

Christoph,
I should have been more specific: it is an ultrasonic reference block with what appears on the sketch to be three cross-drilled holes. The item is from a European document.

(I have seen the Saurwein Gammamat-TIF, also remember fondly the excellent Gammalux personal alarm)
regards
Nick

    
 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
10:37 Jan-16-2010
Re: Ultrasonic test block
In Reply to Nick Welland at 04:09 Jan-14-2010 .

Nick

EN 583-2 has a 3 SDH block for setting sensitivity on material between 20mm and 40mm thick (Table B2 Reference blocks and reflectors for Class 1 objects.

Could it possibly read ToF instead of TIF, in which case it could be a TOFD block from Annex A of EN 583-6?

    
 
 Reply 
 
Ingo witzel
Engineering, - - quality control
Germany, Joined Sep 2009, 3

Ingo witzel

Engineering, - - quality control
Germany,
Joined Sep 2009
3
18:52 Jan-16-2010
Re: Ultrasonic test block
In Reply to Nick Welland at 02:13 Jan-11-2010 (Opening).

If it has crossed drill holes it was probably used to set gain levels to check welding seams.
Usually they have to be calibrated once a year (compared to a master block).
Most test blocks have flat bottom holes.

    
 
 Reply 
 

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