PSA-GCB-Mix 3 Back Catalog number: 674522 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended ME 20300 Aqueous Ethanol Standard (3,0g/l), 10 x 1,2ml Price on request 675933 D5-Propachlor ESA sodium salt, 5mg Price on request 673047 Hexadecyltrimethylammonium bromide, 250mg Price on request