Dr.WG Kenyon sent me a copy of a test to detect the presence of lead( more
specifically lead oxide) that was simple and able to detect 0.1 of a
microgram. He sent it to me as a friend so you will need to contact him if
you are interested.
Dewey
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]]On Behalf Of Gabriela Bogdan
Sent: Wednesday, August 25, 2004 10:22 AM
To: [log in to unmask]
Subject: Re: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES, ETC.
So, Would it be useful for a quick ckeck of component leads, solder balls or
solder joints?
Gaby
----- Original Message -----
From: "McCullen, Jack T" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, August 25, 2004 6:14 PM
Subject: Re: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES, ETC.
> Some Info from Web Site.
>
> LeadCheck Swabs can be used to screen for lead solders used in household
> plumbing. In 1986 lead solders were banned from use on plumbing lines
> that brought incoming water to a tap. While the law bans the use of
> solder in excess of 0.2% lead, the truth of the matter is that the
> lowest concentration of lead found in household solder is 37%. Since the
> detection limit of LeadCheck Swabs for lead in solder is 2%, a LeadCheck
> Swab quickly turns pink to red when testing commonly used tin/lead
> solders. LeadCheck Swabs will not turn pink when testing 0.2%, or "lead
> free" solder.
>
>
> Regards,
> Jack
>
>
> -----Original Message-----
> From: Leadfree [mailto:[log in to unmask]] On Behalf Of Lee Whiteman
> Sent: Wednesday, August 25, 2004 8:45 AM
> To: [log in to unmask]
> Subject: Re: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES, ETC.
>
> Danielle,
>
> The gadget is called Lead Check. I heard about it from one of our
> students in our Lead Free Class. Got a sample this morning.
>
> Their website is: http://www.leadcheck.com/. I have not tried it yet so
> I can't comment on its effectiveness, but in theory it sounds
> interesting.
>
> Lee Whiteman
> Senior Manufacturing Engineer
> American Competitiveness Institute
> Telephone: (610) 362-1200; Ext. 208
> FAX: (610) 362-1290
>
> This message is for informational purposes only and does not supersede,
> modify, or create any agreements with ACI. Information contained in this
> message does not bind ACI or its affiliates to any commitment, either
> express or implied, unless ratified in writing by an authorized
> representative.
>
>
> -----Original Message-----
> From: Leadfree [mailto:[log in to unmask]] On Behalf Of Danielle Casha
> Sent: Wednesday, August 25, 2004 11:29 AM
> To: [log in to unmask]
> Subject: Re: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES, ETC.
>
>
> Such a tool may not be necessary. At a recent Pb Free presenatation
> here in Toronto Canada, Peter Biocca, of Kester solder was able to show
> those in attendance a small disposable pen sized gadget that, when
> rubbed on a solder joint, would turn pink if there was lead present, at
> a cost of aprox $1.00US per. Perhaps this is the kit that Gaby mentions?
> However, I do realize that such a tool has its limits . . .
>
> Danielle
>
> -----Original Message-----
> From: Bev Christian [SMTP:[log in to unmask]]
> Sent: Wednesday, August 25, 2004 11:14 AM
> To: [log in to unmask]
> Subject: Re: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES,
> ETC.
>
> Gaby,
> What kit? I was speaking of an inductively coupled plasma optical
> emission spectrometer, which costs close to $200K (US). And I also
> mentioned a Dremel tool. Here in North America a Dremel tool is a well
> known brand of a handheld multitool for grinding and sanding small
> objects (well usually not as small as 20 mil leads!) Bev
>
> -----Original Message-----
> From: Gabriela Bogdan [mailto:[log in to unmask]]
> Sent: August 25, 2004 11:04 AM
> To: (Leadfree Electronics Assembly Forum); Bev Christian
> Subject: Re: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES, ETC.
>
>
> It was a theoretical question, and I hope too that we will not have to
> do such absurd tests. By the way- what is the sensitivity of the kits
> for lead checking? Does it make sense to introduce them in the incoming
> inspection? Gaby
>
> ----- Original Message -----
> From: "Bev Christian" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, August 25, 2004 3:58 PM
> Subject: Re: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES, ETC.
>
>
> > Guenter,
> > Then this totally takes me, the OEM, out of the picture for producing
> > the
> original data for the material contents. I am now totally captive of my
> suppliers (and their suppliers) to provide this information, since it is
> physically impossible to get that data myself. (And I am NOT going to
> be "Grinding or scraping" as Gaby mentioned, I hope factiously. And how
> would I do that Gaby, with a Dremel tool?!) All I can do is perform an
> ICP-OES analysis to get overall cadmium and lead content of my PCBA (or
> perhaps individual components we suspect) as a validation of the data
> received from my suppliers.
> > Bev Christian
> > RIM
> >
> > -----Original Message-----
> > From: Guenter Grossmann [mailto:[log in to unmask]]
> > Sent: August 25, 2004 4:31 AM
> > To: [log in to unmask]
> > Subject: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES, ETC.
> >
> >
> > We had several requests already to do such an analysis. The problem is
>
> > not only the removal of the homogeneous material but the analysis down
>
> > to 0.1% isn't easy and costs a fortune. In my opnion, the only
> > possibility to go handle the legislation is a delivery specification
> > indicating that the parts delivered must comply with the RoHS since
> > only the producer is able, by avoiding non conformal materials, to
> > ensure RoHS compatibility.
> >
> > Best regards
> >
> > Guenter
> >
> > EMPA
> > Swiss Federal Laboratories for Materials Testing and Research Centre
> > for Reliability Guenter Grossmann, Senior Engineer
> >
> > 8600 Duebendorf
> > Switzerland
> >
> > Phone: xx41 1 823 4279
> > Fax : xx41 1 823 4054
> > mail: [log in to unmask]
> >
> >
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To unsubscribe, send a message to [log in to unmask] with following text in
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To temporarily stop/(start) delivery of Leadree for vacation breaks send:
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Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
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To unsubscribe, send a message to [log in to unmask] with following text in
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