EPA Method 8240A Internal Standard Back Catalog number: 22003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 19253 OLM 04.2 Additional Analytes - Semi-Volatiles Price on request 684311 D10-N-Nitrosodiethylamine, 100µg/ml in MeOH, 5ml Price on request 72101 Ascorbic acid Price on request