885	WATER AND WASTEWATER TREATING CHEMICALS
88508  *	Activated Carbon and Filter Elements
88515  *	Algae and Microbe Control Chemicals (Copper Sulfate, etc.)
88516  *	Algae and Microbe Control Chemicals (For Air Conditioning and Cooling Water)
88528  *	Antifoaming Agents
88532  *	Boiler Water Chemical Treating Compounds
88538  *	Chlorine, Liquefied
88540  *	Chlorinating and Oxidizing Agents: Bromohydantoins, Chloroisocyanurates,
 	Hypochlorites, etc. (For Swimming Pool Disinfection)
88544  *	Corrosion, Scale, and Sludge Control Chemicals: Alum, Amines (Morpholine, etc.),
 	Sodium Sulfite, etc.
88546  *	Counteractant and Degreaser, Odor
88548  *	Descaling Compounds
88560  *	Ferrous Sulfate and Ferrous Chloride
88564  *	Filter Aids: Diatomaceous Earth, Fuller's Earth, etc.
88566  *	Fluoride and Other Drinking Water Additives
88570  *	Hardness Control Chemicals: Chelating Agents (Phosphonates, etc.),
 	Polyphosphates, Polymer Flocculants, etc.
88574  *	Nitrogen and Oxygen, Liquid
88576  *	Odor Control Chemicals, etc.
88577  *	Polymer Flocculants (For Color, Thickening, Dewatering, Coagulant Aid) (Not
 	Hardness Control)
88578  *	pH Control Chemicals: Caustic Soda, Lime, Muriatic Acid, Quicklime, Soda Ash, etc.
88579  *	Reagents, Buffer (For Water Treatment)
88580  *	Resins, Sodium Ion Exchange (For Water Softening)
88582  *	Sewer and Septic Treating Chemicals
88584  *	Sodium Hydroxide
88595  *	Water Testing Kits (For Chlorine, Hardness, pH, etc.)