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ISO 561:1989

Coal preparation plant — Graphical symbols

Nov 30, 1989

General information

90.93     May 16, 2023

ISO

ISO/TC 27/SC 1

International Standard

01.080.30     73.120  

French   English  

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Published

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Scope

The symbols have been selected in accordance with the following principles: a) the plants should be widely used; b) the symbols should be easy to draw and readily be distinguishable one from another; c) the principle and not the appearance of any particular type of machine should be represented, d) where a single symbol represents a group of items for which separate symbols are s-tandardized nationally, the ISO symbol should be readily distinguishable from any one of the national symbols.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 561:1974

NOW

PUBLISHED
ISO 561:1989
90.93 Standard confirmed
May 16, 2023

REVISED BY

ABANDON
ISO/PWI 561

ABANDON
ISO/DIS 561

National adoptions

SRPS ISO 561:1994  
ISS

Coal preparation plant — Graphical symbols

90.93   Standard confirmed

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