ISO 913:1977
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Sulphuric acid and oleum for industrial use Determination of ash Gravimetric method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
26-02-2019
English, French
01-11-1977
Based on evaporation of a test portion in a platinum dish, followed by ignition in an electric furnace, controlled at (850 50) C, and weighing. - Replaces ISO Recommendation R 913-1968.
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