Environmental air sampling gas standards meet lab requirements for two separate sources of calibration standards.

• High-quality
• No rental or demurrage fees required
• Fast delivery provides freshest standard possible

Our high-quality air sampling gas calibration standards are provided by Spectra/Linde and Scott/Air Liquide—meeting lab requirements for two separate sources of calibration standards. Each comes with a certificate of analysis and unique serial number. All cylinders are disposable and do not require rental or demurrage fees. Recertification of cylinders is available directly with Restek's suppliers. All cylinders are drop-shipped from Restek's suppliers to provide fast delivery and the "freshest" standard possible. Minimum 12-month stability on all cylinders.