GB/T 31089-2014
Computation and requirement of recovery ratio of coal mine (English Version)

Standard No.

GB/T 31089-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 31089-2014

Scope

This standard specifies the terms, calculation methods and requirements for coal mine recovery rate. This standard applies to underground coal mines.

GB/T 31089-2014 history

• 2014 GB/T 31089-2014 Computation and requirement of recovery ratio of coal mine