Specifications HI96782-25 Range 0.00 to 3.50 mg/L (as SDBS) Resolution 0.01 mg/L Accuracy ±0.10 mg/L ±5% of reading at 25 °C Wavelength 610 nm Cuvette Type 13 mm diameter Method Adaptation of the Standard Method for the Examination of Water and Wastewater, 23rd Edition, 5540C, Anionic Surfactants as MBAS Method ID #093 # of Vials 25 HI96782-25 Surfactants, Anionic Pre-dosed Reagent Set 13 mm Vial I96782-25 is a kit of pre-dosed reagents in vials for the determination of Anionic Surfactants. There are vials for 25 tests to be used with Hanna’s HI801 and HI802 spectrophotometers. These high-quality reagents are manufactured in our state-ofthe-art facility and are clearly marked with lot number and expiration date for traceability. The method used is compliant with ISO 7875/1 and ensures very precise results in a wide range (from 0.00 to 3.50 ppm). The procedure involves the addition of a very representative sample volume (5 mL) and the use of 13 mm (internal diameter) cuvettes, with a longer optical path than many other vials on the market. This ensures accurate absorbance measurements and greater repeatability of results. Furthermore, the 13 mm vial has more headspace than other kinds of vial and this implies a great benet: optimal sample extraction and results more precise. Signicance and Use Surfactant analysis is crucial for water quality assessment in natural and wastewater environments. Anionic surfactants, negatively charged and common in detergents, are particularly important to monitor. Unlike cationic (positively charged) or non-ionic surfactants, anionic variants can signicantly impact aquatic ecosystems by reducing surface tension and oxygen levels. They also interact dierently with water treatment processes and aquatic organisms. The most widely used anionic surfactants include sodium dodecyl sulfate (SDS), sodium dodecylbenzene sulfonate (SDBS), sodium dodecane sulfonate (SDSA), sodium dioctyl sulfosuccinate (SDOSSA). Monitoring anionic surfactants helps ensure regulatory compliance, evaluate treatment e´cacy, and protect aquatic life. Regular testing of these specic surfactants is essential for environmental protection and maintaining water quality standards. Application Water, wastewater, surface water, formulations, degreasing baths, wash solutions, process analysis. Method Adaptation of the Standard Method for the Examination of Water and Wastewater, 23rd Edition, 5540C, Anionic Surfactants as MBAS. This method is compliant to ISO 7875/1 5 Reasons to Choose Hanna 1. The method is compliant to ISO 7875/1 2. Representative sample: 5 mL 3. Wide range: 0.00 to 3.50 mg/L (as SDBS) 4. Optimal sample extraction (13 mm vial has more headspace) 5. Thanks to the 16 mm diameter vials, the emulsion is dissolved very quickly Procedure guides on inside lid 11 COD and Vials 11.34 | www.hannainst.com Pre-dosed Reagents
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