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- since 1996 -

Sonatest Ltd
From our three distinct business centres in the UK, USA and CANADA, Sonatest design and produce a leading range of high performance ultrasonic NDT equipment and accessories.

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Technical Discussions
N.Kuppusamy
Consultant
Hi-Tech NDT Inspection Services (S) Pte Ltd, Algeria, Joined Jul 2000, 4

N.Kuppusamy

Consultant
Hi-Tech NDT Inspection Services (S) Pte Ltd,
Algeria,
Joined Jul 2000
4
03:28 Jul-31-2000
Penetrant Testing

I have few questions regarding Penetrant Testing,

1. What is the nature of Penetrant and Developer, i.e.,whether
they are acid or base
2. What is the suitable cleaning method for dry developers?
3. Preheating the Penetrant/Specimen is recommended or not, what
is the effect of preheating?
4. What is the relationship between Dragoutloss and viscosity
5. How the rate of penetration is related to Viscosity, Specific
gravity and surface tension
6. What method shall be employed to inspect out side weld of
open ethelene storage tank
7. What is the suitable cleaning method for metals, rusted and
scaled surfaces
If any one knows the correct answer, please send you email

by
N.Kuppusamy


    
 
 
Suman dey
Suman dey
07:06 Dec-31-2000
Re: Penetrant Testing
Could u please help me to understand te relation between surface tension and penetration

Regards
Suman Dey


    
 
 

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