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ISO 19579:2006
Solid mineral fuels - Determination of sulfur by IR spectrometry
ISO 19579:2006 specifies an alternative method of determining the total sulfur content of hard coal, brown coal, and lignite by high-temperature combustion and infrared absorption using commercially available instruments.
This method has been shown to be applicable to coal samples having an ash yield of less than 40 %.
International Organization for Standardization [iso]