Mercury
French hatters were the first to use mercuric nitrate, Hg(NO3)2, solutions during the felting process. This solution raised the scales on the fur shafts, helping them to mat more smoothly while also working to separate the fur from the animal skin. This process exposed felt workers to toxic levels of mercury vapors.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Olav Folland
Sent: Tuesday, September 02, 2014 10:58 AM
To: [log in to unmask]
Subject: Re: [TN] R: [TN] fluids covered by RoHS?
Felting (as in hats) used mercury. Thus the "Mad Hatter"
Olav
On 09/01/2014 11:21 AM, Yuan-chia Joyce Koo wrote:
> tanning of leather uses Cr.
> On Sep 1, 2014, at 11:31 AM, Robert Kondner wrote:
>
>> Makes me think for the "Mad Hatter" from Alice in Wonderland.
>>
>> Was that Lead, Mercury or Arsenic they used in processing leather?
>>
>> Bob
>>
>> -----Original Message-----
>> From: TechNet [mailto:[log in to unmask]] On Behalf Of Bev Christian
>> Sent: Saturday, August 30, 2014 8:05 PM
>> To: [log in to unmask]
>> Subject: Re: [TN] R: [TN] fluids covered by RoHS?
>>
>> Phil,
>> Well our lawyers said that if we out a leather holster in a box with
>> a smart phone, then, yes, the leather holster must meet RoHS.
>>
>> I can't imagine virgin processed hydrocarbon oil having any of the
>> six substances covered by RoHS. A good XRF should be able to tell
>> you quick enough, if you need confirmation.
>>
>> However, I should warn you about BNST, which the Canadian government
>> is banning. See the material below, which I copied from the ECD page
>> and thus why the link to a company. I have no monetary connection
>> myself to ECD.
>>
>> "BNST Substances Restricted in Canada - July 2014 The substance group
>> BNST was added to the Canadian Regulation "Prohibition of Certain
>> Toxic Substances Regulations, 2012 (the Prohibition Regulations)"
>> under the Canadian Environmental Protection Act, 1999, and these
>> regulations came into force on March 14, 2013. BNST is an
>> abbreviation for "Benzenamine, N-phenyl-, Reaction Products with
>> Styrene and 2,4,4-Trimethylpentene". Risk assessment under the
>> Canadian chemical management plan led to the identification of risk
>> management measures that were necessary and the subsequent
>> restriction of BNST.
>>
>> BNST may be found in lubricants that are sometimes used for
>> high-speed electrical motors in electronic products such as DVD players.
>>
>> The Prohibition Regulations prohibit the manufacture, use, sale,
>> offer for sale or import of BNST and is also applicable to products
>> containing BNST with a limited number of exemptions. The restriction
>> takes effect starting March 14, 2015. Permits to continue using the
>> substance for up to three years after the 2015 prohibition date are
>> also possible. An application for a permit must be submitted to the
>> Minister of the Environment and it must contain the information
>> specified in Schedule 4 of the Prohibition Regulations.
>>
>> The Prohibition Regulation is available for download from the Canada
>> Gazette.
>>
>> ECD Compliance can assist manufacturers with this regulation."
>> http://web.ecdcompliance.com/contact-us
>>
>>
>> Here is also a Canadian government page.
>> http://www.ec.gc.ca/ee-ue/default.asp?lang=en&n=4FB2776F-1
>>
>>
>>
>> Regards,
>> Bev
>> -----Original Message-----
>> From: TechNet [mailto:[log in to unmask]] On Behalf Of GABRIELE SALA
>> Sent: Thursday, August 28, 2014 4:18 PM
>> To: [log in to unmask]
>> Subject: [TN] R: [TN] fluids covered by RoHS?
>>
>> Hi Phil,
>>
>> Is oil or coolant essential part of your EEE? I mean does your EEE
>> needs such oil to run? If yes it is in the scope of RoHS.
>> Probably oil does not contain any of the 6 substances controlled by
>> RoHS (Lead (Pb), Mercury (Hg), Hexavalent chromium (Cr(VI)), Cadmium
>> (Cd), Polybrominated Biphenyl flame retardants (PBB), and
>> Polybrominated Diphenyl Ether flame retardants (PBDE) By the way, you
>> need to check with your supplier or by reading Data Sheet and MSDS as
>> well. It could be contained flame retardant like: PBB or PBDE?
>>
>> If oil is used as part of the process you run on such EEE, in that
>> case oil is considered as a consumables and out of the scope of RoHS
>> II (2011/65/EU).
>>
>> Gabriele
>>
>> -----Messaggio originale-----
>> Da: TechNet [mailto:[log in to unmask]] Per conto di Nutting, Phil
>> Inviato: giovedì 28 agosto 2014 21:40
>> A: [log in to unmask]
>> Oggetto: [TN] fluids covered by RoHS?
>>
>> We have a unit that is being requested by the customer to be RoHS
>> compliant.
>> This unit uses Diala dielectric oil and ethylene glycol as coolant.
>> To date
>> we have coded RoHS compliant parts by adding a G prefix to our letter
>> revision of the assembly. Therefor when reviewing a Bill of
>> Materials we can quickly see what is and is not RoHS compliant. Our
>> internal process calls for all revisions of all parts to have a G
>> prefix to call the top level (finished [product) RoHS compliant.
>>
>> We have batteries in these and I know they are not covered by the
>> RoHS directive.
>>
>> Should I be concerned with the oil or coolant?
>>
>> Phil Nutting | HVP Development Engineer | Excelitas Technologies
>> Corp
>>
>> Lab: +1 978.224.4332 | Office: +1 978.224.4152
>> 35 Congress St, Salem, MA 01970 USA
>> [log in to unmask]<mailto:[log in to unmask]>
>> www.excelitas.com<http://www.excelitas.com/>
>>
>>
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