The Technical Committee of 17^th World Conference on Non-destructive Testing welcomes the NDT colleagues from various parts of the world to send us papers. All papers must be written in English. Author can choose his presentation orally or poster but it will be decided finally by the technical committee.

* Entire abstract (including abstract title, authors, affiliation) must not exceed 300 words. Please add keywords within 5 words.

* Author can send more than one abstract in English online through 17^th World Conference website: www.17wcndt.com or e-mail: chsndt2008@163.com, or e-mail of the Chinese Society for NDT: chsndt@public2.sta.net.cn. After receiving the acceptance notice of the abstract from the technical committee, authors then send his paper (in English) through the same way. Transmitting through fax will not be accepted.

* When sending the abstract please complete an author's registration form on-line in which you will make selections of topics, oral presentation or poster.

* Authors will be informed the acceptance of abstract by the technical committee of the conference until Jan. 31, 2008.

* Before sending the paper, authors should make registration of the conference on-line and pay for the participation fee until Apr.30, 2008 otherwise their papers will not be collected in the conference proceeding (CD).

* Previously published abstract and paper cannot be submitted.

* Participants of the conference will get one booklet of abstracts and a CD disc of conference proceeding collected of all papers.

* The title of the abstract must be written according to the example.

* Author and co-author lined in order.

* Company name, city and country.

*Abstract.

*Keywords.

Preparing Testing by Providing Critical Systems

D. Rouillard, P. Casteran, P.Felix, R.Castanet; Bordeaux; France

The objective of this study was….