GB/T 20475.5-2020
Classification for content of harmful elements in coal―Part 5：Fluorine

Standard No.

GB/T 20475.5-2020

Language

Chinese

Release Date

2020

Published By

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

Lastest

GB/T 20475.5-2020

Scope

This part of GB/T 20475 specifies the classification, naming and code designation of coal according to the range of dry base fluorine content w (Fd), as well as the collection, preparation and determination of coal samples. This section applies to coal exploration, production and processing, sales and utilization.

GB/T 20475.5-2020 Referenced Document

• GB/T 4633 Determination of fluorine in coal
• GB/T 474 Method for preparation of coal sample
• GB/T 475 Method for manual sampling of commercial coal
• GB/T 482 Sampling of coal seams

GB/T 20475.5-2020 history

• 2020 GB/T 20475.5-2020 Classification for content of harmful elements in coal―Part 5：Fluorine

GB/T 20475.5-2020 -All Parts