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Derivatives from coal pyrolysis - Carbon black feedstock - Specifications and test methods
90.93 Standard confirmed
Liquid chlorine for industrial use — Method of sampling (for determining only the volumetric chlorine content)
90.93 Standard confirmed
Liquid chlorine for industrial use — Determination of the content of chlorine by volume in the vaporized product
90.93 Standard confirmed
Liquid chlorine for industrial use — Determination of water content — Gravimetric method
90.93 Standard confirmed
Sulphur for industrial use — Determination of ash at 850-900 degrees C and of residue at 200 degrees C
90.93 Standard confirmed
Sulphur for industrial use — Determination of loss in mass at 80 degrees C
90.93 Standard confirmed
Sulphur for industrial use — Determination of acidity — Titrimetric method
90.93 Standard confirmed
Sulphur for industrial use — Determination of arsenic content — Silver diethyldithiocarbamate photometric method
90.93 Standard confirmed