ISO/DIS 21557

Mining — Mining methods — Classification and Specification
This document establishes a classification of mining methods by ore grade and recovery, cost of infrastructure, ore extraction, labour and machine costs, underground support costs and geotechnical factors.
OEN:
ISO
Langue:
English
Code(s) de l'ICS:
73.020
Statut:
Brouillon
Date de Publication:
1969-12-30
Numéro Standard:
ISO/DIS 21557