258999 Fluoride ISA Reagent Powder Pillows

Reagent Powder Pillows measure fluoride (0.1-10.0 mg/L F⁻ and 0.1-100.0 mg/L F⁻) and nitrate (0.1-100.0 mg/L NO₃-N) in drinking water, wastewater and other liquids. Article 258999 uses Fluoride ISE method (8323, 8358). Each product package contains 100 Powder Pillows.

Before starting analysis:

• It is required to collect the sample with clean glass or plastic bottles.
• The sample and calibration solutions are required to be at the same temperature (±2 °C) to ensure accurate testing results.
• It is recommended to increase the sample temperature to room temperature before evaluation.

Procedure for F⁻ evaluation

To perform analysis of the sample containing fluoride in the range 0.1-100.0 mg/L F⁻, it is required to add 25 mL of sample and Nitrate ISA Powder Pillow to beaker. Stir the beaker content, rinse the probe with deionized water and dry with cloth. Put the probe in the solution and press READ. If it is required to conduct calibration, push CALIBRATE and READ. Measure the remaining standard solutions, press DONE and STORE. See manual for additional information regarding determination of the fluoride in the range of 0.1-10.0 mg/L F⁻ and nitrate in the range of 0.1-100.0 mg/L NO₃-N.

Sample preparation

It is recommended to store containers tightly closed in a dry, cool and well-ventilated place. It is required to keep the product in properly labeled containers.