Foil Gas Sampling Bag, 12" x 19", 10 L, CHROMSPEC, Roberts Nickel Plated On/Off Valve with 1/4" Barbed Stem

Multi-Layer Foil Gas Sampling Bags

Our Multi-Layer Foil Gas Sampling Bags are the best choice for collecting and storing H2S. Ideal for sampling and storing for low molecular weight compounds such as Methane, CO, CO2, Hydrogen, and inert gases which are not stable in Tedlar®, ALTEF, or FEP. Water and vapor proof, these opaque, flexible bags protect light sensitive compounds. They provide up to 5 day sample stability for many VOC's, with minimal adsorption. Opaqueness protects samples from ultraviolet light. Foil layers provide very low permeability and complete moisture barrier

Maximum operating temperature: 190 °F

Nickel Plated HR® ON/OFF Valve with 1/4" Diameter Barbed Stem & Separate Plastic 1/4" Jaco®Fitting with Fluoropolymer Faced Septum

You get the features of both the HR® Valve and the Jaco® Fitting on one bag

HR® Features:

Nickel Plated to resist damage from most aggressive chemicals

1/4" Barbed Stem for attaching tubing, helps keep tubing in place

Leak resistant seal in closed position, prevents sample loss. However, when stem is not closed, sample air passes into the ambient air outside valve

Jaco® Features:

Polypropylene molded construction is inexpensive compared to metal fittings

Replaceable fluoropolymer faced septum with large area, allows repeated punctures with common lab syringes.

Allows reuse of valve by only replacing septum.

Option of cap with septum or cap with tubing, allows syringe sample extraction or attachment of tubing by changing caps.

Compression ferrule secures tubing onto fitting, which provides a superior grip compared to metal fittings.

Standard Jaco can be used with 1/4" tubing. Jaco for 1/2" and 3/8" tubing also available.