International Standard
ISO 561:1989
Coal preparation plant — Graphical symbols
Reference number
ISO 561:1989
Edición 2
1989-12
International Standard
Vista previa
ISO 561:1989
4651
No disponible en español
Publicado (Edición 2, 1989)
Esta norma se revisó y confirmó por última vez en 2023. Por lo tanto, esta versión es la actual.

ISO 561:1989

ISO 561:1989
4651
Idioma
Formato
CHF 96
Convertir Franco suizo (CHF) a tu moneda

Resumen

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.

Informaciones generales

  •  : Publicado
     : 1989-12
     : 1992-07
     : 1992-07
    : Norma Internacional confirmada [90.93]
  •  : 2
     : 13
  • ISO/TC 27/SC 1
    73.120  01.080.30 
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