Entech has developed the most extensive line of canisters and systems for gaseous sample collection available. Learn more about solutions and exciting innovations in vapor intrusion, helium diusion, and time integrated sampling technologies.

Entech is the only manufacturer that tests 100% of our canisters for chemical inertness by verifying the recovery of a mix of several challenging compounds. All Entech canisters feature the proprietary Silonite® coating which maximizes the recovery of the widest range of compounds possible.

MiniCans™ are the next generation of air sampling canisters from Entech. Designed for rapid heating during analysis, Silonite® treated MiniCans™ allow the recovery of a wider range of compounds than any other sampling canister; including semi-volatiles through the full diesel range and up to C25 hydrocarbons. Like their larger 6L cousins, MiniCans™ excel at recovering compounds that are incompatible with tube sampling technology (including H2S, mercaptans, formaldehyde, amines, ammonia, and many other thermally labile compounds).

Despite the MiniCan’s small size, advances in GC/MS sensitivity allow for detection limits which easily surpass EPA Method TO-14A requirements. Superior performance with a low shipping weight, economical and robotics friendly design, make the MiniCan™ an ideal solution for advanced air monitoring applications. Available in Mini CansTM sizes of 100ml to 1400ml.

Entech’s Silonite® canisters feature a large volume capacity for detection of volatile chemicals down to the low part per trillion range. The inert and durable internal Silonite® coating provides a high-quality, long-term sample storage solution. Losses in the valve are also avoided by utilizing the all new Toxic Organics Valve™ (TOV) with ultra-compact polished surfaces and leak-tight fittings.

A high quality, integrated valve guard is securely welded to the canister for superior light-weight valve protection without any stresses to the valve stem associated with “strapped-type” valve guards. These canisters are certified to meet or exceed the technical specifications required for EPA methods TO-14A and TO-15. High quality performance is verified for EVERY canister with our demanding chemical inertness tests.

Entech introduces a packless, repairable valve designed specifically for Toxic Organics sampling and analysis. It features an ultra-compact, passivated sample path with no internal weld scars, and a Silonite® coating option for superior inertness and durability. The Toxic Organics Valve has been specifically designed to ensure complete recovery of low level TO-14A and TO-15 target compounds. Best of all, the Toxic Organics Valve is repairable! A low cost kit is available so you can easily maintain valves at the peak of scientific reliability and performance.

• Packless System For the ultimate reliability in a metal sealing valve.
• Ultra-Compact Design No other valve in it’s class can come close to matching the analytical transparency of the TOV.
• Silonite® Flow Path A Silonite® treated flow path is avaliable for superior inertness, corrosion resistance, and trustworthy sampling.
• Repairable! Ever throw away an entire valve because it can no longer seal properly? A low cost repair kit is now available for the TOV!
• TO-14A and TO-15 Ready The Toxic Organics Valve and Entech’s Silonite® canisters are the most reliable way to collect samples for EPA methods TO-14A and TO-15

Time-Weighted-Average (TWA) VOC concentrations can be determined by sampling into canisters at a constant flow rate. Canisters can be filled to nearly atmospheric pressure using an ultra-clean, mechanical flow controller. Sapphire orifices combined with pressure regulation offer superior flow stability when compared to needle valve or frit regulated controllers.

The CS1200E provides excellent stability at low fill rates for reliable Time-Weight-Average (TWA) sampling and can be used with Micro-QT™ or TOV™ Silonite® canisters. Different orifices are available to fill a 6L canister over 1, 3, 8 or 24 hours, or even a full week. A stand is available for use with the 1.4 MiniCan™ and 1L Bottle-Vac™ samplers.

• Maintains constant fill rates over 1, 3, 8, 24 hours or 1 week into 6L Canisters.
• Does not require power to operate
• Flow rate preset in the laboratory to eliminate the need for field adjustment.
• Easy field flow verification
• Provides full isolation from the lab to the field to eliminate contaminant exposure
• Larger Diaphragm for more precise control at slow flow rates.  Allows 24 hour sampling into 1.4L MiniCans and 32 oz Bottle-Vacs
• Filter and cover at inlet to keep dust out of entire sampling system and rain off of filter
• Internally polished and Silonite coated inlet line improves recovery of heavy VOCs.
• Capped off front to back during shipping to the field when using Micro QT Valve version