Detergents are found in water from industrial and public wastewater discharges. The most commonly used are linear-alkyl-sulfonates (LAS) and alkylbenzene-sulfonates (ABS). LASs are biodegradable and quickly destroyed by microorganisms.

The total concentration of LAS/ABS anionic detergents in natural water should be kept below 0.1 mg/L and in public wastewater discharge it should be between 1 and 20 mg/L.

• Method: Checker Disc
• Range: 0.00-1.30 mg/L
• Smallest Increment: 0.02 mg/L
• Chemical Method: Methylene blue
• Number of Tests: 35
• Weight: 1245 g