Septa are made of silicone rubber with one side having a RED PTFE face, while the opposite side has an ultrathin covering of polypropylene to prevent needle coring when penetrating septa. Compare this item PTFE / Silicone Septa for Sample Screw Caps National Scientific Extremely clean, natural-colored PTFE laminated to clear Silicone.
PTFE White Silicone PurePakTM Septa: (C4020-32) PurePak PTFE/Silicone septa are an excellent choice for the analysis of volatile organic compounds at low concentrations or operation at higher conditioning temperatures. The septa are packed in a glass Purepak jar to assure low background, low permeability and the highest performance of any
PTFE silicone septa, Caps and Septa – Membrane Solutions PTFE silicone septa, Caps and Septa Request a Quote Introduction MS ® caps and septa are available for different types of sample vials. Its vial products improve your laboratory productivity, by reducing costs and saving time. Features Most close space tolerance
Alibaba volatile organic analysis vials with septa and screw cap Supplier: EP Scientific Products. Description: 40 mL clear EPA VOA vial, thin septa (.060) EPA VOA Open Top Vials Available in clear or amber borosilicate glass. Assembled polypropylene caps and 0.060" or .125” PTFE/silicone septa. Vials are directly compatible with autosamplers.
Quality Environmental Containers. VOA VIALS are most often used for volatile organic compound analysis. Available in clear 33 expansion and amber 51 expansion borosilicate glass. Open top vials come assembled with polypropylene caps with low-bleed 0.125" PTFE/silicone septa inserted (.135" septa for E-series vials). Sizes.
Aijiren's 2 mL screw top vials are constructed from Type 1 borosilicate glass, with low metal content, to protect your sample from destabilizing or leaching. Our 2 mL glass vials are available in both amber and clear versions. The associated 9 mm vial screw cap comes with your choice of septa constructed from either PTFE/silicone, PTFE/silicone
Alibaba volatile organic analysis vials with PP cap. To be used for environmental analysis, EPA vials must be clean and free of substances that might influence the analysis. Glass Vials that meet these requirements are called EPA vials, or sometimes VOA (volatile organic analysis) vials.
resealable materials. PTFE/Silicone septa are formulated for different hardness (durometer) meeting requirements of various needle types. Formulations offering highly consistent performance, lowest background/blank value, and good chemical compatibility, effective sealing/resealing and low penetration force make PTFE/silicone septa suitable for
27261-U: black polypropylene hole cap, thread for 8-425, PTFE/silicone, Top Hat (septa and closure designed to fit together tightly), for use with 2 mL vial, 4.6 mm opening, pkg of 100 ea
Available in several sizes and styles of containers, including the popular 40mL autosampler vials cleaned, certified and ready to use Include Certificate of Analysis Includes: Sampling and storage containers Autosampler compatible vials Culture tubes Low TOC water Recommended for: TOC testing USP method 643 testing
Table 2. Cap and septum chemical compatibility. High performance septa Thin PTFE PTFE/Silicone* PTFE/Silicone/PTFE* PTFE/Red rubber Flouroelastomer Butyl Temperature range 40 °C to 300 °C** Up to 260 °C –40 °C to 200 °C –40 °C to 200 °C –40 °C to 90 °C –40 °C to 260 °C –50 °C to 150 °C Use for multiple injections
PTFE/blue high-purity silicone septum Translucent blue silicone is specially formulated and treated to reduce background from extractables or outgassing of volatile contaminants. The silicone elastomer layer is dense but still easily pierced by most headspace sampling needles. Black rubber septa
VOA Screw Cap Vials. Why Choose VOA Vials? These vials are specifically designed for use with volatile organic compounds, as recommended by EPA 40 CFR 141. They are available in both clear and amber borosilicate glass and have a temperature range of -40ºC to 125ºC.
27236 Septa, PTFE/Silicone tan PTFE/silicone septa, diam. × thickness × PTFE thickness 20 mm × 0.125 in. × 2 mil, pkg of 100 ea Pricing and availability is not currently available. Properties material PTFE face silicone body tan PTFE/silicone septa white silicon nitride septa packaging pkg of 100 ea parameter 250 °C temp. limit O.D. 20 mm
40ml Volatile Organic Chemical sampling vial PTFE/silicone septa Organic Chemical Analysis The “Hows” and “Whys” of Sampling for Organic Compound Analysis OR. Precleaned 40 mL glass vials With Teflon lined rubber septa.