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Mail Inbox - Editorial November 2009

Written by Administrator
Sunday, 01 November 2009 10:16

Once again the end of Penetrant Testing is at our hands' reach

November 2009

Our last month editorial brought us an unexpected number of emails from our readers the world over. Our readers live in more than 110 countries.

As an example we have been allowed to publish in its entirety, at the end of this editorial a point of view we received.

We were far from thinking that this topic would seem valuable to so many people to write about. We cannot publish all the messages we got and the answers we have sent.
We think it more useful to present a summary.

Last Updated ( Wednesday, 25 May 2011 19:53 )

Mail Inbox - DPCNews 017

Written by Administrator
Thursday, 01 October 2009 10:16

PT products for special applications (Follow-up)

October 2009

Many of our American friends read the papers that we wrote and published on our website. Quite often we even get support letters and some questions are asked.

We suggest you have a thorough look at the papers published on the monthly "The Penetrant Professor", address as following:

In its November 2009 issue there is a comment on our own DPCNewsletter #017 issued in October 2009 which deals with PT products for special applications.

Last Updated ( Wednesday, 25 May 2011 19:36 )

Mail Inbox - DPCNews 011

Written by Administrator
Wednesday, 01 April 2009 10:15

The volatile organic compounds (VOC) and Penetrant Testing/Magnetic Testing (PT/MT)

April 2009

We received an email from a European reader, about the VOC and our DPCNewsletter n° 011.
It comes as follows (edited for clarification):
"Hello Patrick,
Just read your DPCNewsletter n°011 about VOC's, etc.
Are you aware there is already a new Directive 2004/42/CE replacing 1999/13/CE? The vapour pressure is no longer the basic but it is the initial boiling point: products boiling at less than 250°C (482°F) are VOC, while those with a higher initial boiling point are not.

Last Updated ( Wednesday, 25 May 2011 19:24 )

Mail Inbox - DPCNews 004

Written by Administrator
Wednesday, 01 October 2008 19:05

Apply dry developers the right way

October 2008

One of our readers sent us a comment about dry developer grain size.

Here is his letter, edited for a better understanding:
‘‘The technical data sheet of the dry developer xxx shows there is no particle sized under 0.1 µm, while you state a 1/100 µm (10 nm) figure. If the dust-storm cabinet comes with a 5 µm filter, no particle at all may go through; hence the developer formulae is not modified.’’

Last Updated ( Wednesday, 25 May 2011 19:18 )

Mail Inbox - DPCNews 003

Written by Administrator
Friday, 01 August 2008 16:25

Dry powder density

August 2008

As  SUGGESTED by one of our readers, there is a very simple method not to have to check the developer; it is good enough to replace it every day.

Last Updated ( Wednesday, 01 June 2011 09:26 )
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