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11-22 Nov 2024: Follow ISO at COP29
Reference number
ISO 2531:1991
© ISO 2024
ISO 2531:1991
Ductile iron pipes, fittings and accessories for pressure pipelines
Edition 4
1991-10
Withdrawn
ISO 2531:1991
7469
ICS
23
23.040
23.040.10
ISO 2531:1991
Ductile iron pipes, fittings and accessories for pressure pipelines
Withdrawn
(Edition 4, 1991)
New version available:
ISO 2531:2009
General information
Status
:
Withdrawn
Publication date
:
1991-10
Stage
: Withdrawal of International Standard [
95.99
]
Edition
: 4
Number of pages
: 47
Technical Committee :
ISO/TC 5/SC 2
ICS
:
23.040.10
23.040.40
77.140.75
RSS
updates
Life cycle
Previously
Withdrawn
ISO 2531:1986
Now
Withdrawn
ISO 2531:1991
Stage:
95.99
00
Preliminary
10
Proposal
20
Preparatory
20.00
1986-03-01
New project registered in TC/SC work programme
30
Committee
30.00
1986-10-01
Committee draft (CD) registered
30.99
1987-07-03
CD approved for registration as DIS
40
Enquiry
40.00
1987-07-03
DIS registered
40.20
1988-07-07
DIS ballot initiated: 12 weeks
40.60
1989-01-01
Close of voting
50
Approval
50.00
1990-01-31
Final text received or FDIS registered for formal approval
50.20
1991-05-31
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
50.60
1991-05-31
Close of voting. Proof returned by secretariat
60
Publication
60.60
1991-10-24
International Standard published
90
Review
90.20
1995-11-30
International Standard under systematic review
90.60
1996-04-15
Close of review
90.92
1996-04-15
International Standard to be revised
95
Withdrawal
95.99
1998-08-20
Withdrawal of International Standard
Revised by
Withdrawn
ISO 2531:1998
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