Coal quality analysis results

No.

Term name

English name

definition

symbol

Permissible synonyms

Synonyms of disuse

2.4.1

Received base

As received basis

The status of coal has been received as a benchmark

Ar

 

Application base

2.4.2

Air drying base

Air based

Coal with air humidity reaching equilibrium

Ad

 

Analytical base

2.4.3

Dry base

Dry basis

In the hypothetical state of coal without water

d

 

Dry basis

2.4.4

Dry ash-free base

Dry ash-free basis

Based on hypothetical anhydrous, ashless coal

Daf

 

Combustible

2.4.5

Dry mineral free base

Dry mineralmatter free basis

A hypothetical anhydrous, non-mineral state coal

Dmmf

 

Organic base

2.4.6

Constant humidity ashless

Moist ashfree basis

A hypothetical coal containing the highest internal moisture and no ash

Maf

 

 

2.4.7

Constant humidity and no mineral base

Moist mineral matter-free-baisis

Based on the hypothetical coal with the highest internal moisture and no mineral status

M,mmf

 

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