Solids (Total Solids, TSS, & TDS) Back Catalog number: 50799 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95143 Prometon Price on request XA20920000AL Phenanthrene, 100µg/mL in Acetonitrile, 1ml Price on request 32103 EPA Method 551.1 Internal Standard Price on request