Many process applications begin with the trial of our catalog sizes. Specific details on these products can be found in our comprehensive catalog. GFS manufactures over 6,000 organic and inorganic analytical reagent chemicals and specialties in a lean manufacturing operation. We have most chemicals needed for laboratory, bench, analytical, quality control, materials characterization, scientific or research work. Our ultra-high purity doubledistilled Veritas and ACS Superior brand acids and Watermark brand reagents are used throughout the world. GFS In-Spec chemicals set the standard for spectrophotometry calibration. Our AMCO Clear Water Analysis Division manufactures the highest water calibration standards available for water treatment plants around the globe.