EPA Method 552,552.1,552.2 Internal Std Back Catalog number: 30105 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA10060100AC Alachlor D13 (2,6-diethylphenyl D13), 100 ng/µl, 1.1ml Price on request 10534.28-100-IO 25-Hydroxyvitamin D2 (95%) Price on request S-4049-005-10ME Methanol QC Reference mixture V Trimethylamine, 50 ppb (weight by weight), in methanol; Unit: 10x10mL Price on request