> From: Bob Richards
> Sent: Wednesday, January 17, 2007 9:24 AM
>
> I remember hearing someone at UL say that for this type test,
> a special "UL Cheescloth" was needed, one that had a
> non-standard threadcount. I would suspect, based on other UL
> type tests specs, that this special cheesclo
> From: Price, Ed
> Sent: Wednesday, January 17, 2007 9:35 AM
>
> Here's an interesting site about cheesecloth; everything from
> straining maple syrup to bookbinding, but they never seem to
> have heard about flammability testing.
>
> http://www.raglady.com/items.jsp?category=66
> http://www.
In message <113354.84762...@web56502.mail.re3.yahoo.com>, dated Wed, 17
Jan 2007, Bob Richards writes
>I would suspect, based on other UL type tests specs, that this special
>cheescloth is manufactured the same way that ordinary cheesecloth was
>manufactured in the early 20th century. :-)
Much
I found the paragraph below on their site at:
http://www.ctia.org/industry_topics/topic.cfm/TID/4
CTIA is also involved in a collaborative effort with IEEE, a prominent
technical-standard setting organization, to develop new industry-wide
standards for battery design and performan
In message
,
dated Wed, 17 Jan 2007, "Tarver, Peter"
writes
>It's easy to find cheesecloth, but finding the right kind of
>cheesecloth is a takes more effort.
... and convincing your accreditation assessor takes even more, I
expect.
--
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and w
> Sent: Wednesday, January 17, 2007 11:47 AM
> To: emc-p...@ieee.org
> Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
>
> > From: Ferry, Allen
> > Sent: Wednesday, January 17, 2007 8:10 AM
> >
> > The CTIA has a certification scheme for
Wednesday, January 17, 2007 9:25 AM
To: ieee
Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
"Tarver, Peter" wrote:
It's probably impossible to make any clear determination regarding this,
because there are far too many variables (climate, fertilization
te
"Tarver, Peter" wrote:
It's probably impossible to make any clear determination regarding this,
because there are far too many variables (climate, fertilization
techniques, bleaching techniques, ad infinitum) that could effect this.
The key point is to purchase cheesecloth with appropriate threa
, January 17, 2007 11:47 AM
To: emc-p...@ieee.org
Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
> From: Ferry, Allen
> Sent: Wednesday, January 17, 2007 8:10 AM
>
> The CTIA has a certification scheme for Cell phones
>
> http://www.ctia.org/certification/
> From: Ferry, Allen
> Sent: Wednesday, January 17, 2007 8:10 AM
>
> The CTIA has a certification scheme for Cell phones
>
> http://www.ctia.org/certification/
Allen -
The CTIA certification is against communication protocols and the like,
not safety.
Regards,
Peter L. Tarver, PE
ptar...@iee
emc-p...@ieee.org
Subject
Re: Cell Phone Catches Fire, Burns
> From: John Woodgate
> Sent: Wednesday, January 17, 2007 8:04 AM
> To: emc-p...@ieee.org
> Subject: Re: Cell Phone Catches Fire, Burns Man Over Half His Body
>
> ted.eck...@apcc.com writes
> >I can get the necessary cotton and cheese cloth from numerous local
>
Thanks Ted...some comments interspersed below
> To increase the power densities of lithium batteries, manufacturers have
> used thinner dielectric and insulating materials. The problem with the
> cell phone batteries, and with the recent group of laptop battery
> failures,
> is largely due to mat
> From: John Barnes [mailto:jrbar...@iglou.com]
> Sent: Tuesday, January 16, 2007 6:13 PM
>
> Peter,
>
> A tin whisker problem, perhaps?
The article makes no claims regarding the age of the phone, so whether
or not it was "lead-free" is unknown. There's usually insufficient
public follow-up
In message
,
dated Wed, 17 Jan 2007, ted.eck...@apcc.com writes
>I can get the necessary cotton and cheese cloth from numerous local
>sources at almost no cost.
How do you know that the materials from different suppliers (or batches)
have the same ignition characteristics? Is there a standard
mailto:emc-p...@ieee.org] On Behalf Of Jim
Bacher
Sent: 17 January 2007 14:05
To: emc-p...@ieee.org
Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
For the fun of it, I took a look at my cell phone. It does not have a
safety mark on it and the battery pack does not have a safe
cc
AMemc-p...@ieee.org
Subject
Re: Cell Phone Catches Fire, Burns
Man Ove
You know...is there a piece of safety testing knowledge to be gained here?
Well...actually a couple... First of all...for a product as ubiquitous as
a cell phone...you would think that the manufacturer would perform battery
short testing...then look for a standard or directive that calls for it.
For the fun of it, I took a look at my cell phone. It does not have a
safety mark on it and the battery pack does not have a safety mark on
it. A cell phone that has been through a third party certification would
have the proper battery protection, but would one that has not been
through the third
Richard Hughes
From: j...@jmwa.demon.co.uk
To: emc-p...@ieee.org
Sent: Wed, 17 Jan 2007 9.38AM
Subject: Re: Cell Phone Catches Fire, Burns Man Over Half His Body
In message <201048ea81ba0745aca78e4cc8839001769...@desmdswms201.des.grplnk.net
<mailto:201048EA81BA0745ACA78E4CC88390017
Thanks John,
Without being familiar with the standards under the RTTE - does your statement
mean that there will or won't be a fuse link in a battery supply?
I can think of a large number of devices that have high discharge rate high
capacity batteries that do not have fuse links.
One of the one
In message
<201048ea81ba0745aca78e4cc8839001769...@desmdswms201.des.grplnk.net>,
dated Wed, 17 Jan 2007, "Haynes, Tim (SELEX) (UK Capability Green)"
writes
>What protection is there in a phone design if the case when an
>electronic component fails with a short?
In Europe, the LVD doesn't app
Hi All
Are mobile phones designed with a fuse-link in series wit the battery?
I have not examined any phone in detail, but the way mine behave makes me
believe that the on/off is an electronic switch and that some power is drawn
>from the battery all the time for running the clock (no pun intend
Peter,
A tin whisker problem, perhaps?
Printed circuit boards (PCB's) assembled with lead-free solders and
lead-free platings can exhibit some hitherto-almost-unknown failure
modes:
* Tin whiskers.
* Tin pest (tin plague, tin leprosy, tin disease, tin blight).
* Kirkendall voids.
* Sensiti
rting standards.
Best regards,
Rich
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Price, Ed
Sent: Tuesday, January 16, 2007 8:47 AM
To: emc-p...@ieee.org
Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
From: Brian O'Connell [mailto:
The injury was worse because most of the victim's clothing was nylon.
Cotton would have ignited and burned more slowly and not turned into a
sticky molten mass.
-
This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list.Website: http://www.ieee-pses.org/
In message <4461.64.9.83.7.1168975265.squir...@www.ntcnet.com>, dated
Tue, 16 Jan 2007, cb...@ntcnet.com writes
>I don't care what you guys think...I now have a solid reason to tell my
>12 year old daughter why I don't think she should have her own cell
>phone
>
>:-)
These days, that counts as
In message
,
dated Tue, 16 Jan 2007, don_borow...@selinc.com writes
>Offer her a clunky old cell phone with a NiCd or NiMH battery, for her
>own safety (seems to me there were fewer battery fires back then). She
>probably won't want it because it is too big and old to be cool ;-).
Just like Da
emc-p...@ieee.org
cc
01/16/2007 02:33 Subject
PM Re: Cell Phone Catches Fire, Burns
Ma
"Price, Ed" ,
emc-p...@ieee.org
Subject
Re: Cell Phone Catches Fire, Burns
?
>>
>>
>>
>> Regards,
>>
>>
>>
>> Chris
>>
>>
>>
>> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Price,
>> Ed
>> Sent: 16 January 2007 16:47
>> To: emc-p...@ieee.org
>>
_
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Price, Ed
Sent: 16 January 2007 16:47
To: emc-p...@ieee.org
Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
From: Brian O'Connell [mailto:oconne...@tamuracorp.com]
Sent: Tuesday, January 16, 2007
Could it be the phone was beyond recognition??
Regards,
Chris
_
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Price, Ed
Sent: 16 January 2007 16:47
To: emc-p...@ieee.org
Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
From: Brian
From: Brian O'Connell [mailto:oconne...@tamuracorp.com]
Sent: Tuesday, January 16, 2007 8:21 AM
To: emc-p...@ieee.org
Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
dead link, try this:
http://www.nbc11.com/news/10753602/detail.html
I find it interesting that the Va
> To:
> Subject: RE: Cell Phone Catches Fire, Burns Man Over Half His Body
>
> dead link, try this:
>
> http://www.nbc11.com/news/10753602/detail.html
>
>
>> -Original Message-
>> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Tarver,
dead link, try this:
http://www.nbc11.com/news/10753602/detail.html
> -Original Message-
> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Tarver,
> Peter
> Sent: Tuesday, January 16, 2007 7:42 AM
> To: Tarver, Peter
> Subject: Cell Phone Catches Fire, Burns Man Over Half
The tinyurl somehow didn't survive 20 minutes. Below is the long form
of the URL of an Associate Press release.
http://www.foxnews.com/story/0,2933,243888,00.html
Regards,
Peter L. Tarver, PE
ptar...@ieee.org
> > From: "Tarver, Peter"
> > Date: Tue, 16 Jan 2007 07:41:47 -0800
> > To: "Tarve
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