IS 1355 : 1984 Methods of determination of chemical composition of ash of coal and coke

1 Scope

1.1 This standard prescribes the methods of test for theanalysis of ash of coal and coke. The standard contains definitionsof terms and methods of preparation of ash.

1.2 Should any inconsistency exist between the requirements ofthis standard and those, if any, given in standards for individualmaterials, the latter shall prevail.

1.3 Test methods not described in this standard, and notspecified in the standard for individual materials shall be subjectto agreement between the purchaser and the vendor.

2 References

IS 2 :1960Rules for rounding off numerical values

IS 436 : Part 1 : Sec 1 : 1964 Methods for samplingof coal and coke:Part 1 Sampling of coal, Section 1 Manualsampling

IS 436 : Part 1 : Sec 2 :1976 Methods for sampling of coal and coke:Part 1 Sampling of coal, Section 2Mechanical sampling

IS 436 : Part 2 :1965Methods for sampling of coal and coke:Part 2 Sampling of coke

IS 264 :1976Specification for nitric acid

IS 265 :1976Specification for hydrochloric acid

IS 266 :1977Specification for sulphuric acid

IS 321 :1964Specification for absolute alcohol

IS 323 :1959Specification for rectified spirit

IS 1070 :1977Water for general laboratory use

IS 1350 : Part 1 :1969Methods of test for coal and coke :Part 1 Proximate analysis

IS 4311 :1967Methods for the determination of mineralmatter in coal

IS 5069 : Part 2 :1969 Methodsof test for brown coals andlignites :Part 2 Determination of ash