Solids (Total Solids, TSS, & TDS) Back Catalog number: 50799 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CFN98838 Kaempferol, >98%, 20mg Price on request Q147 Fluorescent Brightener Agent OB-2 [4,4''-Bis(5-methyl-2-benzoxazolyl)stilbene], 97%, 5g Price on request 21002 EPA Method 8260 - Surrogate Standard Price on request