Screw Headspace vials gasket should pay attention to the problem

Time:2018/11/13 Pageviews:2 Share:

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The problem that the gasket used in the Screw Headspace vials should be noted

There are many types of elastomeric gaskets used in Screw Headspace vials, some of which are listed in the table below. Low-priced butyl rubber gaskets have limited applications because of their adsorption to non-polar compounds and the lower temperature range. In addition, it also has a role for polar compounds such as ethanol. Fluorinated silicone rubber mats are more common and have a wider temperature range.

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Headspace Seal Type Maximum Operating Temperature Chemically Inert Price

Butyl rubber mat 80 degrees difference low

Fluorine silicone rubber mat 210 degrees good

VITON rubber mat 200 degrees high

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