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ISO 722:1991

Rock drilling equipment — Hollow drill steels in bar form, hexagonal and round

Jan 24, 1991

General information

90.93     Dec 6, 2022

ISO

ISO/TC 82

International Standard

73.100.30     77.140.60  

French   English  

Buying

Published

Language in which you want to receive the document.

Scope

Specifies the dimensions for seven nominal sizes. This third edition cancels and replaces the second edition (1985), which has been technically revised (addition of round drill steels and extension of the range of sizes).

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 722:1985

NOW

PUBLISHED
ISO 722:1991
90.93 Standard confirmed
Dec 6, 2022

National adoptions

Rock drilling equipment — Hollow drill steels in bar form, hexagonal and round

90.93 Standard confirmed

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