w
13021
Abstract
The method ist applicable to ores containing between 2 and 50 % (m/m) iron oxide. The method has been chosen to avoid interference from platinum which may occur with the use of platinum crucibles. Specifies principle, reagents, apparatus, sampling and preparation of samples, procedure, expression of results and test report.
General information
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Status : WithdrawnPublication date : 1985-06
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Edition : 1Number of pages : 3
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- ICS :
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Aluminium ores
Life cycle
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Now
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00
Preliminary
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10
Proposal
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20
Preparatory
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30
Committee
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40
Enquiry
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50
Approval
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60
Publication
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90
Review
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90.93
1990-12-01
International Standard confirmed
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90.20
1994-11-30
International Standard under systematic review
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90.60
1995-06-30
Close of review
-
90.20
1999-11-25
International Standard under systematic review
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90.60
2000-06-30
Close of review
-
90.93
2000-08-04
International Standard confirmed
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90.20
2004-11-25
International Standard under systematic review
-
90.60
2005-07-15
Close of review
-
90.20
2010-07-15
International Standard under systematic review
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90.60
2010-12-17
Close of review
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90.93
2010-12-20
International Standard confirmed
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90.20
2015-10-15
International Standard under systematic review
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90.60
2016-03-17
Close of review
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90.99
2016-04-11
Withdrawal of International Standard proposed by TC or SC
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90.93
1990-12-01
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95
Withdrawal
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00
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