Precision and Recovery Stock Solution, 1.2ml, nonane Back Catalog number: EPA-1613PAR Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended EPA-537PDS-R1 EPA Method 537 Analyte Primary Dilution Standard, 2000ng/ml in MeOH, 1,2ml Price on request 31022 2,4-Dichlorophenylacetic acid Price on request 93967 tert-Butyl hydroquinone (TBHQ) Price on request