No, it means that the specific sample tested may not be representative of other similar manufactured products — i.e. they only guarantee the test results for the specific sample involved.

Depedning on what type of thing it is, you might need to replace 'equipment' with 'unit' or even 'item' — though clearly they have used 'objet' in order to keep it as general as possible.

Just as an aside, 'equipment under test' is often shortened in such documents to 'EUT', and if it has been used elsewhere, that could be used here too (even though of course it really mean 'equipment that has been tested')

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Note added at 7 mins (2007-07-13 10:23:22 GMT)
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You have to read it as: "ne préjuge pas de la conformité ... à l'objet essayé"

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Note added at 9 mins (2007-07-13 10:25:28 GMT)
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This is a very standard disclaimer in such test documents, meaning "the one we tested was OK (or not), but that doesn't necessarily mean all the other (supposedly identical) ones made will be". if something is sailing a bit close to the wind, a test customer will often pre-select a good example in order to make sure it passes! (or worse, 'massage' it to make sure!)

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Note added at 41 mins (2007-07-13 10:56:56 GMT)
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EUT is used perhaps more in some fields than others; in my case, I came across it specifically in an electronics testing context, where whole systems were often tested, so it was possibly more appropriate than 'device'