AS 1038.8.1-1999

1 - AS 1038.8.1-1999 COAL AND COKE - ANALYSIS AND TESTING - COAL AND COKE - CHLORINE - ESCHKA METHOD
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE
5 - 2 REFERENCED DOCUMENTS
5 - 3 DEFINITIONS
5 - 4 PRINCIPLE
5 - 5 SAFETY
6 - 6 REAGENTS
6 - 6.1 General
6 - 6.2 Eschka mixture
6 - 6.3 Nitric acid
6 - 6.4 Silver nitrate solution (0.025 mol/L)
6 - 6.5 Potassium thiocyanate solution (0.025 mol/L)
6 - 6.6 n-Hexanol
6 - 6.7 Ammonium iron(III) sulfate indicator
6 - 7 APPARATUS
6 - 7.1 General
6 - 7.2 Muffle furnace
6 - 7.3 Crucible
6 - 7.4 Silica plate
6 - 8 SAMPLE
6 - 8.1 General
7 - 8.2 Equilibration
7 - 9 PROCEDURE
7 - 9.1 Determination of the blank
7 - 9.2 Determination
7 - 10 CALCULATION
8 - 11 REPORTING OF RESULT
8 - 12 PRECISION
8 - 13 TEST REPORT

Sets out the determination of the chlorine content of coal and coke by the Eschka procedure.

This Standard sets out a method for the determination of the chlorine content in coal and coke by the Eschka procedure.NOTE: The presence of residual halogen-bearing organic float-and-sink liquids in coal samples will affect the determination of chlorine.

First published as part of AS K152.8-1965 (endorsement of BS 1016.8-1959 without amendment).AS K152.8-1965 withdrawn 1978.AS K152.8-1965 revised and redesignated as AS 1038.8-1980.Revised and redesignated in part as AS 1038.8.1-1992.Second edition 1999.Reconfirmed 2013. Originated as part of AS K152.8-1965 (endorsement of BS 1016.8-1959 without amendment). Previous edition AS 1038.8.1-1992. Second edition 1999.