ISO 1952:1976
Withdrawn
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Brown coals and lignites — Method of extraction for the determination of sodium and potassium soluble in dilute hydrochloric acid
Available format(s)
Hardcopy , PDF
Language(s)
English, French
Published date
01-06-1976
Withdrawn date
09-04-2025
Superseded by
€65.00
Excluding VAT
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).
| Committee |
ISO/TC 27
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
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