Hi,

The requirement is for "The petroleum spirit to be used for the test is
aliphatic solvent hexane having a maximum aromatics content of 0,1 % by
volume, a kauri-butenol value of 29, an initial boiling point of
approximately 65 °C, a dry point of approximately 69 °C and a mass per unit
volume of approximately 0,7 kg/l."

Our Chemist researched it and found it is Hexane, 95+%.  The Aldrich Cat.
No. is 20,875-2.  The CAS number is 110-5A-3.

The Isopropyl Alcohol is 100% (not rubbing alcohol) and is a very aggressive
solvent.  It is at least as harsh as the Hexane.

Ned Devine
Entela, Inc.
Program Manager III
Phone 616 248 9671
Fax  616 574 9752
e-mail  [email protected] 



-----Original Message-----
From: Robert Johnson [mailto:[email protected]]
Sent: Sunday, October 08, 2000 11:20 PM
To: E Eszlari
Cc: [email protected]
Subject: Re: Label Rub test per IEC60950



As I recall, the chemical that was described is what is sold in the US as
kerosene. It appeared way back in the early UL standards that way.
Since this is a petroleum distillate characterized mainly by its molecular
weight and what temperature it comes off the refining process, describing it
is
kind of like coming up with a chemical formula for milk. Too messy to try.
The
term kerosene was not sufficient to properly describe it worldwide, so this
description was what was recommended by those in the business.
Many have also used cigarette lighter fluid for the test. Functionally it is
pretty equivalent, just a lighter distillate. The container's much more
convenient.

Bob

E Eszlari wrote:

> Hi Doug,
>
> I think you will find that the common mineral spirit found in your local
> hardware store is used by most companies to perform the test in order to
get
> a good idea if the label and print will pass. I have found that UL will
> accept the results. By the way, the gallon of mineral spirits I have at
home
> is also labeled "petroleum spirit". If you are doubtful of this test
result,
> you may want to have an agency such as UL do the test for you or use an
> approved label system.
>
> In my experience I have found mineral spirit to be a more harsh chemical
> than Isopropyl Alcohol. The alcohol test is performed on labels that are
> used in medical environments per IEC 60601.
>
> Ed
>
> >From: "Massey, Doug C." <[email protected]>
> >Reply-To: "Massey, Doug C." <[email protected]>
> >To: "'IEEE Forum'" <[email protected]>
> >Subject: Label Rub test per IEC60950
> >Date: Fri, 6 Oct 2000 10:22:27 -0400
> >
> >
> >Does anyone know what the trade name for the chemical used for the rub
test
> >in 60950 clause 1.7.15 is ?
> >The standard calls it "petroleum spirit", then describes an aliphatic
> >solvent hexane, with several properties, none of which are a chemical
> >formula.
> >
> >Is it common mineral spirits available at most hardware stores?
> >
> >Also, is Isopropyl Alcohol a more harsh solvent than the petroleum
spirits?
> >
> >Thanks
> >
> >Doug Massey
> >Safety Approvals Engineer
> >LXE, Inc.
> >Norcross, GA., USA
> >Ph.  (770) 447-4224 x3607
> >FAX (770) 447-6928
> >e-mail: [email protected]
> >
> >Cruise our website at: http:\\www.lxe.com
> >
> >
> >
> >-------------------------------------------
> >This message is from the IEEE EMC Society Product Safety
> >Technical Committee emc-pstc discussion list.
> >
> >To cancel your subscription, send mail to:
> >      [email protected]
> >with the single line:
> >      unsubscribe emc-pstc
> >
> >For help, send mail to the list administrators:
> >      Jim Bacher:              [email protected]
> >      Michael Garretson:        [email protected]
> >
> >For policy questions, send mail to:
> >      Richard Nute:           [email protected]
> >
> >
>
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
>
> Share information about yourself, create your own public profile at
> http://profiles.msn.com.
>
> -------------------------------------------
> This message is from the IEEE EMC Society Product Safety
> Technical Committee emc-pstc discussion list.
>
> To cancel your subscription, send mail to:
>      [email protected]
> with the single line:
>      unsubscribe emc-pstc
>
> For help, send mail to the list administrators:
>      Jim Bacher:              [email protected]
>      Michael Garretson:        [email protected]
>
> For policy questions, send mail to:
>      Richard Nute:           [email protected]




-------------------------------------------
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.

To cancel your subscription, send mail to:
     [email protected]
with the single line:
     unsubscribe emc-pstc

For help, send mail to the list administrators:
     Jim Bacher:              [email protected]
     Michael Garretson:        [email protected]

For policy questions, send mail to:
     Richard Nute:           [email protected]


-------------------------------------------
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.

To cancel your subscription, send mail to:
     [email protected]
with the single line:
     unsubscribe emc-pstc

For help, send mail to the list administrators:
     Jim Bacher:              [email protected]
     Michael Garretson:        [email protected]

For policy questions, send mail to:
     Richard Nute:           [email protected]

Reply via email to