Grading of Coal | Coal Controller's Organization

Grading of Coal

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Gazette Notification regarding switch over from UHV to GCV.

SO No 357 Grading of Lignite 23-01-2023A-Wn

Is.770.1977

Is.437.1979

Is.436.1.1.1964

BIS is.1350.4.1.1974 Coarbon and Hydrogen

BIS of Test of Coal And Coke

BIS Is.1353.1993 Caking Index

BIS Is.9127.1.1992 Patrographic

BIS Is.1350.2.1975 Caloric Value

Grading of Coal

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