Robert,

I recall vaguely that the manufacturer recommended 150 injections.  I
always change them after approximately that many.  Maybe I am too
cautious?

>  > I always use two septa on our H/Device, SGE 3041872 www.sge.com.
>>
>>  Even if the chromium reactor isn't quite high enough to be
>>  flush with the
>>  metal top of the H/Device furnace, it will still seal this way.
>
>The difference is that yours are not teflon coated while the ones used
>here are coated (like the 3 layer SGE TCS series). The coated ones are
>not so flexible and will therfore not seal a reactor which is too short.
>
>I just used the septa which where already in use here in the lab.
>For the next order I will check the price of the SGE.
>Any experience how many injections can be performed on them?
>
>regards,
>Robert
>
>--
>Robert van Geldern
>Leibniz Institute for Applied Geosciences (GGA)
>S3: Geochronology and Isotopehydrology
>Stilleweg 2, 30655 Hannover, Germany
>phone: +49-(0)511-643-2313 (office), -2539 (lab)
>fax: +49-(0)511-643-3665
>mailto:[log in to unmask]


--


********************************
Steve Nelson
Dept. of Geology
S389 ESC
Brigham Young University
Provo. Utah  84602

voice:    1-801-422-8688
lab:      1-801-422-5124
FAX:      1-801-422-0267

CARPE CARP:  seize the fish
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