w
11092
Abstract
The process of sample preparation consists of several operations three of which are fundamental: particle size reduction by crushing or grinding and milling; mixing; decrease of sample mass by dividing the sample (sample division). In most cases, the drying process of the sample is also necessary.
General information
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Status : WithdrawnPublication date : 1983-12
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Edition : 1Number of pages : 7
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- ICS :
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Coals
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
-
50
Approval
-
60
Publication
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90
Review
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90.20
1992-11-30
International Standard under periodical review
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90.60
1993-06-30
Close of review
-
90.93
1994-04-11
International Standard confirmed
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90.20
1998-11-30
International Standard under periodical review
-
90.60
1999-07-15
Close of review
-
90.93
1999-10-12
International Standard confirmed
-
90.20
2005-05-25
International Standard under periodical review
-
90.60
2005-11-15
Close of review
-
90.20
2005-11-15
International Standard under periodical review
-
90.60
2006-07-15
Close of review
-
90.20
2011-07-15
International Standard under periodical review
-
90.60
2011-12-17
Close of review
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90.93
2013-02-27
International Standard confirmed
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90.99
2017-12-07
Withdrawal of International Standard proposed by TC or SC
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90.20
1992-11-30
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95
Withdrawal
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00
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