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Reference number
ISO 549:1981
© ISO 2024
International Standard
ISO 549:1981
Manganese ores — Determination of combined water content — Gravimetric method
Edition 2
1981-12
Read sample
ISO 549:1981
4629
TC
ISO/TC 132
ISO 549:1981
Manganese ores — Determination of combined water content — Gravimetric method
Published
(Edition 2, 1981)
This publication was last reviewed and confirmed in 2022. Therefore this version remains current.
ISO 549:1981
ISO 549:1981
4629
Language
English
French
Format
PDF
Paper
PDF
Paper
CHF
42
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General information
Status
:
Published
Publication date
:
1981-12
Stage
: International Standard confirmed [
90.93
]
Edition
: 2
Number of pages
: 3
Technical Committee :
ISO/TC 132
ICS
:
73.060.20
RSS
updates
Life cycle
Now
Published
ISO 549:1981
A standard is reviewed every 5 years
Stage:
90.93
(Confirmed)
00
Preliminary
10
Proposal
20
Preparatory
30
Committee
30.00
1981-04-01
Committee draft (CD) registered
40
Enquiry
50
Approval
50.00
1981-04-01
Final text received or FDIS registered for formal approval
50.20
1981-11-01
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
50.60
1981-11-01
Close of voting. Proof returned by secretariat
60
Publication
60.60
1981-12-01
International Standard published
90
Review
90.93
1996-07-15
International Standard confirmed
90.20
2000-11-25
International Standard under systematic review
90.60
2001-08-28
Close of review
90.93
2001-08-28
International Standard confirmed
90.20
2005-11-15
International Standard under systematic review
90.60
2006-07-15
Close of review
90.20
2008-07-15
International Standard under systematic review
90.60
2008-12-17
Close of review
90.93
2008-12-20
International Standard confirmed
90.20
2013-10-15
International Standard under systematic review
90.60
2014-03-19
Close of review
90.99
2014-12-02
Withdrawal of International Standard proposed by TC or SC
90.93
2016-02-23
International Standard confirmed
90.20
2021-01-15
International Standard under systematic review
90.60
2021-06-05
Close of review
90.93
2022-03-25
International Standard confirmed
90.20
International Standard under systematic review
90.60
Close of review
90.99
Withdrawal of International Standard proposed by TC or SC
95
Withdrawal
95.20
2014-12-10
Withdrawal ballot initiated
95.60
2015-03-10
Close of voting
95.99
Withdrawal of International Standard
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