X-Can Series EPA-Compliant VOC Sampling Canisters

Overview

The X-Can Series VOC Sampling Canisters are precision-engineered, electropolished stainless steel canisters designed for the quantitative collection, stabilization, and transport of ambient, indoor, or source-emission air samples containing volatile organic compounds (VOCs). Based on the widely accepted Summa canister design principle, the X-Can series conforms to U.S. Environmental Protection Agency (EPA) Methods TO-12, TO-14A, and TO-15—regulatory protocols governing the sampling, storage, and subsequent gas chromatography–mass spectrometry (GC-MS) analysis of C2–C12 hydrocarbons and oxygenated VOCs at sub-part-per-trillion (pptv) concentration levels. Each canister features a proprietary internal passivation process—including silonite or similar inert surface treatment—to minimize analyte adsorption, catalytic degradation, and memory effects. The canisters operate as sealed, pressure-rated vessels (typically rated to 30 psig), enabling both grab and integrated time-weighted average (TWA) sampling when paired with compatible flow controllers or timed inlet systems.

Key Features

• Inert, electropolished interior surface with proprietary silonite-type coating for ultra-low VOC reactivity and high recovery (>95% for target compounds per EPA validation studies)
• Swagelok® stainless steel bellows-seal valve assembly ensuring leak-tight integrity (<1×10⁻⁸ atm·cm³/s He leak rate) and long-term valve cycle durability
• Available in standard volumetric configurations: 1 L, 3 L, 6 L, and 15 L—each calibrated to NIST-traceable standards
• Pre-evacuated to ≤10 mtorr and certified VOC-free prior to shipment; supplied with individual certificate of cleanliness and residual gas analysis (RGA) report
• Robust 316 stainless steel construction with laser-etched serial number and lot traceability for GLP/GMP-compliant sample chain-of-custody workflows

Sample Compatibility & Compliance

The X-Can Series is validated for use with EPA Methods TO-12 (ambient air), TO-14A (target compound list including BTEX, chlorinated solvents, carbonyls), and TO-15 (broad-spectrum untargeted VOC profiling). It supports sampling across diverse matrices: ambient urban/rural atmospheres, workplace indoor air, fenceline monitoring zones, landfill/industrial stack effluents, and compressed gas cylinder purity verification. All canisters comply with ISO 16000-6 for indoor air VOC sampling and meet ASTM D5466 requirements for inertness testing. When used in conjunction with EPA-compliant analytical laboratories, data generated from X-Can samples satisfy reporting criteria under 40 CFR Part 63, Part 60, and state-level air toxics programs. Each batch undergoes third-party certification per EPA Contract Laboratory Program (CLP) specifications.

Software & Data Management

While the X-Can canister itself is a passive sampling device, its integration into regulated workflows requires rigorous documentation control. When deployed with the optional X-Timer programmable sampling controller, users gain audit-ready digital logs compliant with FDA 21 CFR Part 11 (electronic records and signatures). The X-Timer stores up to 100 independent sampling event schedules—including start/stop timestamps, duration, and valve actuation confirmation—with encrypted onboard memory and USB-C data export. Its stainless steel housing (6.2″ H × 4″ W × 3″ D; 1.13 kg) supports field deployment in temperatures ranging from –20 °C to +50 °C. Battery life exceeds 240 hours on a single charge (Li-ion, 7.4 V, 4,400 mAh), and all firmware updates are delivered via secure over-the-air (OTA) protocol with SHA-256 signature verification.

Applications

• Ambient air quality monitoring networks (e.g., EPA SLAMS, CASTNet)
• Indoor air quality assessments per ASHRAE Standard 62.1 and LEED IEQ credit requirements
• Fenceline and perimeter monitoring for refineries, chemical plants, and wastewater treatment facilities
• Short-term emission event characterization (e.g., flaring, tank degassing, maintenance releases)
• Reference standard verification and cylinder gas purity validation for calibration gas producers
• Method development and interlaboratory comparison studies under ISO/IEC 17043 proficiency testing schemes

FAQ

Are X-Can canisters interchangeable with legacy Summa-brand canisters in existing lab workflows?
Yes—X-Can canisters share identical dimensional tolerances, valve interface geometry (¼”-28 UNF), and pressure rating specifications, enabling drop-in replacement without hardware or software modification.
What cleaning and certification documentation accompanies each canister?
Each unit ships with a Certificate of Conformance, residual gas analysis (RGA) chromatogram, and vacuum integrity test record, traceable to NIST SRM 1640a (benzene) recovery validation data.
Can X-Can canisters be reused, and what is the recommended maximum reuse cycle?
Under strict adherence to EPA Method TO-15 cleaning protocols (pressurized purge with zero-air/N₂ followed by bake-out at 150 °C), reuse is permitted up to 10 cycles—subject to post-cleaning RGA verification and laboratory-specific QA/QC review.
Is the X-Timer compatible with non-X-Can sampling systems?
Yes—the X-Timer’s universal 24 V DC output and dry-contact relay interface support integration with any electromechanical sampling valve, including those used with Tedlar bags, sorbent tubes, or other pressurized canister systems.
Do you provide method-specific validation packages for regulatory submissions?
Qualified customers may request application notes aligned with EPA Region-specific guidance, including SOP templates, QC checklist forms, and raw data file structure specifications compliant with EQuIS and AQS database ingestion requirements.