Parker Hannifin Corporation manufactures both Parker Balston and domnick hunter branded analytical gas generators designed to eliminate high-purity gas cylinders from the laboratory. Parker on-site gas generator technologies produce a continuous supply of ultrahigh-purity gases for GC, FT-IR, TOC, ICP, AA and LC-MS analytical instruments. Parker is a global Fortune 250, ISO9001 and ISO14001 certified manufacturer. Parker manufactures gas generation systems in the USA, EU, and Asia, supported by a world-wide field sales and service organization.