HEY G.
HAVE WE LOOKED AT THIS YET?
-----Original Message-----
From: Fites, Robin [mailto:[log in to unmask]]
Sent: Wednesday, August 25, 2004 12:59 PM
To: [log in to unmask]
Subject: Re: [LF] Antw: Re: [LF] INTERPRETATION OF EU DIRECTIVES, ETC.
There are test kits for lead in soil that are more sensitive. An example is
Cole Parmer 99038-00, Lead Soil Test Kit. I believe this test kit will test
positive for any lead amount that is greater than 400 ppm. The sample size
can be reduced if a higher limit for lead is desired.
Robin Fites
Principal Materials Engineer
Harman/Becker Automotive Systems
1201 S. Ohio St.
Martinsville, IN 46151
Phone 765-352-2351
Fax 765-342-0478
[log in to unmask] - Note new e-mail address.
nospam231
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of McCullen, Jack T
Sent: Wednesday, August 25, 2004 11:14 AM
To: [log in to unmask]
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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