Method 1640 Tuning Standard Back Catalog number: 52147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2894.24-K-IO Bis(2-ethylhexyl) phthalate-3,4,5,6-d4, 1000µg/mLin isooctane, 1ml Price on request 11443.21-100-IO Tris-p-tolyl phosphate-d21,100 µg/mL,isooctane,1mL, Price on request 72115 Butylated hydroxyanisole (BHA) Price on request