Thanks..good to know. Joyce

On Sat, Jan 14, 2012 at 7:53 PM, Allan Fish <[email protected]> wrote:

>  don't know how it is with the smell of head cement, but with anesthesia
>> agents, if you can smell it, is 200 ppm or more.  That's considered a
>> no-no.  Joyce
>>
>
> Xylol (a mixture of the meta and para Xylene isomers) can be smelled from
> 0.08 to 3.7 ppm according to WIkipedia (if you can believe them).  I know
> it's a penetrating odor.
>
> You can smell toluene at 4 ppm according to eco-usa.net (whoever they
> are).
>
>
> a.
> --
> Allan Fish
> Greenwood, IN
> [email protected]
>
>
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