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Previous by Date: Subject: Re: Do surgical masks = 'respirators'? Date: Tue, 25 Jan 2011 07:25:04 -0800 Author: "Holland, Duv**At_Symbol_Here**CDCR"

Next by Date: Subject: 5 Re: [DCHAS-L] Do surgical masks = 'respirators'? Date: Tue, 25 Jan 2011 11:53:44 -0500 Author: List Moderator

Hello:

I have an associated question to Bradley's that shows my lack of knowledge:
what is/are the respiratory regulatory issues surrounding the operation of 
a
grinder/mill, specifically one that can generate over 1 kilogram of
material?

Thanks in advance, Jim
On Tue, Jan 25, 2011 at 8:53 AM, Norwood, Brad
wrote:

>  All,
>
> As an analytical laboratory, we operate under the Laboratory Standard
> 1910.1450 of the OSHA regulations.  We have excellent engineering control
s,
> and have done monitoring for the the atmosphere contaminants that would b
e
> of concern.  We don=92t meet the OSHA threshold for any of those.
>
> That being said, we sometimes have to grind samples in knife mills, and
> this can generate some dust (though still well below the threshold).  Per
> 1910.134 Appendix D (*
> http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS
&p_id=9784
> *)
> we conduct and document training to ensure that our employees have a firm
> basis upon which to choose a dust mask appropriate to their task and
> comfort.
>
> Now, my toxicology group wants to order surgical masks, and since 1910.13
4
> defines a =93respirator=94 as:
>
> *Filtering facepiece (dust mask)* means a negative pressure particulate
> respirator with a filter as an integral part of the facepiece *or with th
e
> entire facepiece composed of the filtering medium* (emphasis added).
>
> In light of the above definition, I am forced to ask:  is a surgical mask
> considered a =91respirator=92?  Do I now need to document a) that there i
s no
> condition which *requires* use of a respirator/surgical mask/form of
> protection in the toxicology section and b) that if not, all of the
> toxicologists are also trained in accordance with Appendix D to 1910.134?
>
> 
>
>
>
> Dr. Bradley K. Norwood
> Laboratory Director
> Arista Laboratories
> 1941 Reymet Road
> Richmond, VA  23237
> (804) 271-5572 ext. 307
> (804) 641-4641 (cell)
> *brad.norwood**At_Symbol_Here**aristalabs.com* 
>
>
> ************** D i s c l a i m e r ***************
> This e-mail message is confidential and may contain legally privileged
> information. If you are not the intended recipient you should not read,
> copy, distribute, disclose or otherwise use the information in this e-mai
l.
> Please also telephone us (804-271-5572), or fax us (804-271-5594),
> immediately and delete the message from your system. E-mail may be
> susceptible to data corruption, interception and unauthorized amendment, 
and
> we do not accept liability to such corruption, interception or amendment 
or
> the consequences thereof.
>
>
>
>
>
>




Hello:
=A0
I have an associated question to Bradley's that shows my lack of k
nowledge: what is/are the respiratory regulatory issues surrounding the ope
ration of a grinder/mill, specifically one that can generate over 1 kilogra
m of material? 

=A0
Thanks in advance, Jim 

On Tue, Jan 25, 2011 at 8:53 AM, Norwood, Brad <
span dir="ltr"><Brad.No
rwood**At_Symbol_Here**aristalabs.com> wrote:



All,
=A0
As an analytical laboratory, we operate under the Laboratory Standard 
1910.1450 of the OSHA regulations.=A0 We have excellent engineering control
s, and have done monitoring for the the atmosphere contaminants that would 
be of concern.=A0 We don=92t meet the OSHA threshold for any of those.

=A0
That being said, we sometimes have to grind samples in knife mills, an
d this can generate some dust (though still well below the threshold).=A0 P
er 1910.134 Appendix D (http://www.osha.gov/pls/oshaweb/owadisp.show_document?
p_table=STANDARDS&p_id=9784) we conduct and document
 training to ensure that our employees have a firm basis upon which to choo
se a dust mask appropriate to their task and comfort.

=A0
Now, my toxicology group wants to order surgical masks, and since 1910
.134 defines a =93respirator=94 as:
=A0
Filtering facepiece (dust mask) means a negative pressur
e particulate respirator with a filter as an integral part of the facepiece
 or with the entire facepiece composed of the filtering medium (emph
asis added).

=A0
In light of the above definition, I am forced to ask:=A0 is a surgical
 mask considered a =91respirator=92?=A0 Do I now need to document a) that t
here is no condition which requires use of a respirator/surgical mas
k/form of protection in the toxicology section and b) that if not, all of t
he toxicologists are also trained in accordance with Appendix D to 1910.134
?

=A0
<sigh>
=A0
=A0
=A0
Dr. Bradley K. Norwood
Laboratory Director
Arista Laboratories
1941 Reymet Road
Richmond, VA=A0 23237
(804) 271-5572 ext. 307
(804) 641-4641 (cell)
brad.norwood**At_Symbol_Here**aristalabs.com
=A0
=A0
************** D i s c l a i m e r **
************* 
T
his e-mail message is confidential and may contain legally privileged infor
mation. If you are not the intended recipient you should not read, copy, di
stribute, disclose or otherwise use the information in this e-mail. Please 
also telephone us (804-271-5572), or fax us (804-271-5594), immediately and
 delete the message from your system. E-mail may be susceptible to data cor
ruption, interception and unauthorized amendment, and we do not accept liab
ility to such corruption, interception or amendment or the consequences the
reof.

=A0
=A0
=A0
=A0
=A0

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