ISO 1952:1976
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Brown coals and lignites Method of extraction for the determination of sodium and potassium soluble in dilute hydrochloric acid
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
09-18-2018
English, French
06-01-1976
The sample of brown coal or lignite is extracted with boiling 0,005 N hydrochloric acid and the extract centrifuged. The sodium and potassium in solution are determined by any precise analytical method (for example, gravimetric method or flame photometric method).
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