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CKIC / Changsha Kaiyuan Instruments Co., Ltd
Fluorine Determination in the Analysis Sample of Solid Waste

Fluorine Determination in the Analysis Sample of Solid Waste

Product catalog summary

Introduction
This document outlines the procedure for determining fluorine content in solid waste samples using the 5E-FL2350 Fluorine/Chlorine Analyzer.

Sample Preparation
Samples should be air-dried and ground to a size of ≤0.2mm for analysis.

Instrument Specifications

Analyzer: 5E-FL2350 Fluorine/Chlorine Analyzer
Oxygen Flow: 500ml/min, purity 99.5%
Vapour Flow: 2ml/min
Main Furnace Temperature: 1100℃
Condensator Temperature: 20℃
Calibration Standard: GBT4633-2014
Nominal Sample Mass: 100 mg
Analysis Time: 45 minutes per test

Method Approval
The method is approved by GBT4633-2014, ISO11724, and ASTM D5987 standards.

Procedure

Prepare the instrument as per the operator’s manual, ensuring all components are checked.
Perform three blank sample titrations to initialize the system.
Conduct combustion pretreatment with two empty crucibles at the start of each day.
Weigh 0.5g of the solid waste sample, cover with silica sand, and load into crucibles.
Start the analysis with the prepared samples.
Use calibration substances after every 10 duplicate sample analyses to check calibration.
Repeat steps 4 to 6 until all samples are processed.

Note: Refer to the operator’s manual for calibration details.

Typical Results
The document provides typical results for coal samples, indicating fluorine content in micrograms per gram (μg/g) with an average value calculated from multiple tests.

Catalog excerpts

Fluorine Determination in the Analysis Sample of Solid Waste-1

Fluorine Determination in the Analysis Sample of Solid Waste Sample Preparation Samples may be analyzed as air dried Crush and grind to make the sample size <0.2mm Instrument 5E-FL2350 Fluorine/Chlorine Analyzer Instrument Settings Oxygen : Flow 500ml/min; purity 99.5% Vapour :2ml/min Main Furnace Temperature:1100 °C Condensator temp. :20°C Calibration Standard: GBT4633-2014 Nominal Sample Mass: 100 mg Analysis Time: 45 minutes/per test Special Modifications to Unit None Method Approval GBT4633-2014 and ISO11724 and ASTM D5987

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Fluorine Determination in the Analysis Sample of Solid Waste-2

1. Prepare instrument as outlined in the operator' s instruction manual (check the solutions, pure water content and electrodes, oxygen gas flow and etc.) 2. Do three blanks sample "Fkt" titration (initialize the titration system) 3. Combustion pretreatment with two empty crucibles (this process only for first time of using of each day) 4. Weigh a portion (0.5g) of solid waste sample in crucible, then cover the sample with a flat layer of silica sand 5. Load two crucibles with sample as prepared in step4 , then" start" analysis 6. 2 samples of calibration substance to check the calibration after...

Open the catalog to page 2

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