Interesting, like an echo from the 60s. Got worried when I saw your message, storage conditions are questions that arise up and then, and sulphur compounds could be a problem decades ago. Plastics that contain sulphur in any form today are e.g. PPS, PSU, PES and CSM, i.e. polyphenylen sulphide etc, but I can't see that any of these belong to antistatic sheets and tapes and trays. Looking forward to what others will say. We use a lot of antistatic material, so I'm curious.
Ingemar Hernefjord
Ericsson Microwave Systems

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]
Sent: den 31 januari 2005 23:18
To: [log in to unmask]
Subject: [TN] Sulfide contamination


I have heard that certain plastic trays, pallets, antistatic sheets, tapes,
etc. could contain sulfide as a plasticiser, which could lead to sulfide
contamination of components coming into contact with these items. Is this a
fact? Is sulfide contamination a risk if there is no brown paper or
cardboard involved?

Lothar Thole
Product Engineering Manager
Vision Systems

14 Park Way
Technology Park
MAWSON LAKES SA 5095
AUSTRALIA.



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