CWA BTEX Back Catalog number: 38396 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11907.20-100G Fluorescein disodium salt dihydrate, 90%,neat,neat,100g, Price on request 94293 Phenol Standard Price on request 31053 EPA Method 552.1 - Haloacetic acid esters Price on request