EPA Method 509 Internal Standard Back Catalog number: 30097 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4355-10-5ME ISO 8165-2 Internal Control Stock Solution 1 S-4355 1 Internal standard, 10 µg/mL, in methanol, 5mL 2,4-Dibromophenol [615-58-7] 2061,6 Price on request 59415 Thiocyanate (SCN-) Price on request 64042 Aroclor 1242 in Transformer Oil Price on request