EPA 1620 Standard 5 Back Catalog number: 52143 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675034 Sodium dodecylbenzenesulfonate (hard type) (ABS 10 Price on request 93103 Aroclor 1242 Price on request 673308 Formetanate hydrochloride, 10.0 µg/ml, Acetonitri Price on request