Randy,
     
     One category you will probably use to evaluate test labs is 'test 
     report quality'.  If a report lacks the kind of detail and clarity 
     that would allow you to perform an EMC scan 6-12 months later (i.e., 
     auditing the continuing compliance of your current production) with 
     the confidence that your EUT configuration, cabling, etc., is 
     identical, then you will not know if any variances in EMC results are 
     due to the:
        - product's design tolerances, 
        - sourcing of components,
        - manufacturing practices, or simply
        - EUT configuration, cable routing, etc..
     
     ANSI C63.4 section 10 is 'Test Report Content' and would be a starting 
     point for development of your own checklist of requirements.
     
     Regards,
     
     Doug Kealey
     Scientific-Atlanta Inc.
     770-236-7456
     [email protected]


______________________________ Reply Separator 
_________________________________ Subject: Lab qualification
Author:  "Randall Flinders" [SMTP:[email protected]] at IMS 
List-Post: [email protected]
Date:    10/5/98 11:33 AM
     
     
Hello group.
     
I am facing the task of writing a corporate procedure for qualifying EMC
Test 
Labs as vendors.  The procedure will approve each vendor on a test by test 
basis, and a spec by spec basis.  (For example - one lab may be approved for

radiated emissions, but not for EFT testing, while another lab may be
approved 
for testing to FCC Part 15, but not to AS/NZS 3548.)
     
Could anyone suggest any documents which I can use I the preparation of this

procedure?  If anyone has faced this task in the past, pointers would be 
appreciated as well.  So far, the only document I have found to use as a
guide 
is ISO Guide 25-B.  Any other suggestions would be appreciated.
     
Regards,
     
     
Randy Flinders
EMC Engineer
Emulex Network Systems
(714) 513-8012
[email protected]

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