100ml250ml 500ml Dopak sample bottle sealing PTFE, Rubber, EPDM, septum for Petroleum liquids
EPDM (Ethylene Propylene Diene Monomer) septum is a type of synthetic rubber commonly used in laboratory and industrial settings. It is primarily used as a sealing material in various applications, including as a septum for sealing sample vials or containers.
EPDM septa are often used in chromatography and analytical chemistry techniques, such as gas chromatography (GC) and high-performance liquid chromatography (HPLC). They are placed on the top of the vial or container, providing a reliable and airtight seal.
The septum allows for the injection of a needle or syringe to introduce or withdraw samples or reagents without compromising the integrity of the contents.
EPDM is favored for septa due to its excellent chemical resistance, low extractability, and ability to maintain a secure seal even under varying temperature conditions.
Feature
1.EPDM is highly resistant to a wide range of chemicals, including acids, bases, solvents, and many organic compounds.
2.EPDM septa can withstand a broad temperature range, typically from -40°C to 120°C (-40°F to 248°F).
3.EPDM septa provide a reliable and airtight seal when properly applied to vials or containers.
4.EPDM has low extractable compounds, meaning it releases minimal substances into the samples, making it suitable for sensitive analyses where sample purity is crucial.
Detail
Product name:20mm crimp-top headspace vials
Color:clear, amber
size:22.8*75mm
volume:20ml
Material:Borosilicate Glass
Certification:ISO9001, SGS
Application:GC Analysis
Packing:100pcs/pk
Matching Brands:Waters, Shimadzu, Varian, Thermo fihser
Package:100pieces/pack