Edward,

You English does the job.

The next concept to keep in mind is that a laboratory can give bad
results from a standard test method.  What I'm saying is that even if
we had standard test methods for all materials for testing declarable
substances, there would still be a need to check the credentials of
the testing lab that wants your business.

John



At 06:54 AM 10/21/2006, you wrote:
>Actually,what I understand  what is written below, that certificates
>of such labs worth nothing : both in terms of complying and
>non-complying as well.
>Or maybe my English worth nothing???
>Edward
>
>
>________________________________
>
>From: Leadfree on behalf of John R. Sieber
>Sent: Fri 20/10/2006 18:12
>To: [log in to unmask]
>Subject: [LF] Standard Test Methods for Declarable Substances
>
>
>
>Fellow Travelers,
>
>The other day, you heard from Tim McGrady regarding, among other
>things, the lack of standard methods for testing of declarable
>substances in materials.  As a member of IEC TC111 WG3, I want to
>spread the word about the situation with the tests methods we have
>under development.  Specifically, I want to address the status of the
>IEC TC111 document 111/54/CDV aka CDV 62321 and the question of
>whether laboratories can reference our documents.  For various
>reasons, there are probably many uncontrolled copies of drafts of
>these methods out there in the world.  Many changes have been made to
>older versions and many changes will be made to the latest version.
>
>The CDV was recently rejected in voting by the P-member countries of
>TC111.  That means WG3 must go back and decide how to proceed.  We
>think it may take as long as an additional year to fix the problems
>and complete the voting/review cycles that remain in the IEC
>process.  WG3 will continue working toward our goal of creating valid
>test methods.
>
>If you purchase analyses and the laboratory reports that their test
>methods conform with an IEC CDV or other draft document, it means
>nothing except that they are following procedures that have not been
>validated and approved by IEC.  The terms CDV and draft mean the
>document is not an official standard.  That may seem self-evident,
>but labs may be selling testing services according to CDV 62321.  The
>results of such testing would not be defensible as conforming to an
>international standard.
>
>Even with no standard test method to reference, the results of
>testing by a contract laboratory may be defensible if the laboratory
>has an accredited quality system AND has documented the procedures as
>part of their quality system AND validated the scopes of their
>procedures according to ISO 17025 or another recognized quality
>system standard.  Their customers have the ability to request quality
>system records demonstrating the scopes of test methods, the
>validation process, and its results.
>
>Caveat emptor!
>
>John
>
>
>
>John R. Sieber, PhD
>Research Chemist
>
>National Institute of Standards and Technology
>Chemical Science and Technology Laboratory
>Analytical Chemistry Division
>100 Bureau Drive, Stop 8391
>Gaithersburg, MD  20899-8391 USA
>
>[log in to unmask]
>Tel:  1.301.975.3920
>Fax:  1.301.869.0413
>www.cstl.nist.gov/
>
>Identification of commercial items in this document does
>not imply endorsement by NIST or that items are
>
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