Method 1640 Tuning Standard Back Catalog number: 53147 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673874 Azoxystrobin Metabolite R401553, 10.0 µg/ml, Acet Price on request 680420 Bis(2-ethylhexyl) maleate, 250mg Price on request 61232 Aroclor 1232 in Transformer Oil Price on request