Gas Internal/Surrogate Standard Back Catalog number: 92805 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 94008 EPA Method 8150 - Methyl Derivatives Price on request S-4307-100-MEX5 Aromatic Acids Standard 2289,8 1,2-Benzenedicarboxylic acid (Phthalic acid) 2290,8 1,3-Benzenedicarboxylic acid (Isophthalic acid) 2291,8 1,4-Benzenedicarboxylic acid (Terephthalic acid) 2292,9 4-Methyl-1,2-benzenedicarboxylic acid (4-Me Price on request 50771 SCV-MS-WQ1-conc Price on request