As a matter of interest, what kind of paper do you use?
I would guess shiny is better than matt finish for example to stop
particulate contamination of the surface.
Also I would have thought (I may be wrong) that bleached paper may
contain halide ions for example.

I have interest in this area as I need to store ~500 boards after
cleaning for SIR testing.
The boards must be and stay v. clean.
Any hints or tips greatly appreciated.

Regards

Carl.

>>Reply to your message of 21/10/98 23:47
>We're getting them interleaved with paper and sealed ;
>Found that even better than just stacking them up with desiccant ; for
>few reasons .
>The desiccant and indicators have usually  too localized effectiveness
;
>
>that's why Jim keeps the qty so low .
>The ESD bag is indeed a luxury ; but I suppose he's got a reason for it
>.
>To keep segments (ground?) of copper from picking up a charge, Jim ? .
>Did you measure it ; traced it ; or is it just one of the safe theories
>?
>For us with paper insulation and only the edge (insulated) contact we
>skipped it .
>Wrong ?
>
>> ----------
>> From:         Jim Marsico 516-595-5879[SMTP:[log in to unmask]]
>> Sent:         Thursday, 22 October 1998 3:12
>> To:   [log in to unmask]
>> Subject:      Re: [TN] Shelf Life/Storage for Bare PCB
>>
>> We require that all boards are individually wrapped in tarnish
>> inhibiting
>> paper, and placed in a sealed ESD bag with a humidity indicator and
>> desiccant.
>> (No more than 10 PWBs per bag.)
>>
>> ################################################################
>> TechNet E-Mail Forum provided as a free service by IPC using LISTSERV
>> 1.8c
>> ################################################################
>> To subscribe/unsubscribe, send a message to [log in to unmask] with
>> following text in the body:
>> To subscribe:   SUBSCRIBE TechNet <your full name>
>> To unsubscribe:   SIGNOFF TechNet
>> ################################################################
>> Please visit IPC's web site (http://www.ipc.org) "On-Line Services"
>> section for additional information.
>> For technical support contact Hugo Scaramuzza at [log in to unmask] or
>> 847-509-9700 ext.312
>> ################################################################
>>
>
>################################################################
>TechNet E-Mail Forum provided as a free service by IPC using LISTSERV
1.8c
>################################################################
>To subscribe/unsubscribe, send a message to [log in to unmask] with
following text in the body:
>To subscribe:   SUBSCRIBE TechNet <your full name>
>To unsubscribe:   SIGNOFF TechNet
>################################################################
>Please visit IPC's web site (http://www.ipc.org) "On-Line Services"
section for additional information.
>For technical support contact Hugo Scaramuzza at [log in to unmask] or
847-509-9700 ext.312
>################################################################
>
>
>>End of message

Dr. Carl Levoguer
CMMT
National Physical Laboratory
Queens Rd, Teddington, Middlesex.
TW11 0LW
Direct Line : +44 181 943 6263
Fax: +44 181 943 6453

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################