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Reference number
ISO 1720:1974
© ISO 2024
ISO 1720:1974
Rock drilling — Extension drill-steel equipment for percussive long-hole drilling — Rope-threaded equipments 1 1/2 to 2 in (38 to 51 mm)
Edition 1
1974-07
Withdrawn
ISO 1720:1974
6340
ISO 1720:1974
Rock drilling — Extension drill-steel equipment for percussive long-hole drilling — Rope-threaded equipments 1 1/2 to 2 in (38 to 51 mm)
Withdrawn
(Edition 1, 1974)
New version available:
ISO 10207:1991
,
ISO 10208:1991
General information
Status
:
Withdrawn
Publication date
:
1974-07
Stage
: Withdrawal of International Standard [
95.99
]
Edition
: 1
Number of pages
: 6
Technical Committee :
ISO/TC 82
ICS
:
73.100.30
RSS
updates
Life cycle
Now
Withdrawn
ISO 1720:1974
Stage:
95.99
00
Preliminary
10
Proposal
20
Preparatory
30
Committee
40
Enquiry
50
Approval
60
Publication
60.60
1974-07-01
International Standard published
90
Review
90.93
1981-12-01
International Standard confirmed
90.93
1986-09-01
International Standard confirmed
95
Withdrawal
95.99
1991-01-01
Withdrawal of International Standard
Revised by
Published
ISO 10207:1991
Published
ISO 10208:1991
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