Mail Inbox - November 2011

A too high fluorescent background brightness?

November 2011

A more-than-thirty year friend of ours, who has been a Level 3 trainee with us as instructors, in the ‘80s, Claude BOURIGEAUD, a consultant engineer in ASSISTEC-CB, sent us the underneath question:
"Which criteria make it possible to claim that the fluorescent background is too high?

A Non-Compliance Report (NCR) has been issued by a NADCAP auditor on this topic, up to now failing to give us “true criteria"; he presented us with subjective criteria only.
Can someone shed some light on it? (UV light, for a better understanding?)
Thank you. Sincerely yours."

Mail Inbox - Editorial April 2011

Capillary pressure

October 2011

In December 2010 and January 2011, two readers from North America asked us almost the same question about the pattern of indications on Known Defects Standards (KDS) used in Penetrant Testing, during repeated tests.

A third question, on the same topic, made us write a paper published on our Website(*).

Mail Inbox - DPCNews 036

Waste-water treatment and Penetrant Testing

July/August 2011

Further to the DPCNewsletter published last month in the ‘‘News’’ section, we have received the underneath e-mail from Alain CARTAILLAC MORETTI, Tech & sales dept Manager in the French PT/MT supplier Babb-Co/Sherwin-Babb-Co:

[Translated from French] ''Here is my comment on your “information” letter: Water treatment: PT, a polluting method.

Mail Inbox - DPCNews 035

Penetrant Testing - Non-aqueous wet developer:

How to apply a thin, even layer from a spray can?

June 2011

Further to our last month DPCNewsletter, we received a certain number of congratulations and comments