Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:3:p16
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 3 (pt 16/21)
Character Range: 603341–606023

baked carbon anodes during the year.
ΣQi is the quantity of fuel type (i), measured in the appropriate unit, consumed in the production of baked carbon anodes during the year and estimated in accordance with the requirements set out in the following Divisions:
 (a) if fuel type (i) is a solid fuel—Division 2.2.5;
 (b) if fuel type (i) is a gaseous fuel—Division 2.3.6;
 (c) if fuel type (i) is a liquid fuel—Division 2.4.6.
Si is the mass of sulphur content in baked carbon anodes that is consumed in the production of aluminium during the year, expressed as a percentage of the mass of the baked carbon anodes, and is taken to be 2.
Ashi is the mass of ash content in baked carbon anodes that is consumed in the production of aluminium during the year, expressed as a percentage of the mass of the baked carbon anodes, and is taken to be 0.4.
Note: The default value for Hw is 0.5% of GA.

4.81  Method 2—aluminium (baked carbon anode production)
 (1) Subject to this section, method 2 is the same as method 1 under section 4.80.
 (2) In applying method 1 under section 4.80, the method for sampling and analysing fuel type (i) for the factors Si and Ashi must be determined by sampling and analysing the fuel type for sulphur and ash content, as the case may be, in accordance with:
 (a) for solid fuels—method 2 in Division 2.2.3; and
 (b) for gaseous fuels—method 2 in Division 2.3.3; and
 (c) for liquid fuels—method 2 in Division 2.4.3.

4.82  Method 3—aluminium (baked carbon anode production)
 (1) Subject to this section, method 3 is the same as method 1 under section 4.80.
 (2) In applying method 1 under section 4.80, the method for sampling and analysing the fuel type (i) for the factors Si and Ashi must be determined by sampling and analysing the fuel type for sulphur and ash content, as the case may be, in accordance with:
 (a) for solid fuels—method 3 in Division 2.2.4; and
 (b) for gaseous fuels—method 3 in Division 2.3.4; and
 (c) for liquid fuels—method 3 in Division 2.4.4.

Division 4.4.4—Aluminium production (perfluoronated carbon compound emissions)

4.83  Application
  This Division applies to aluminium production.

Subdivision 4.4.4.1—Aluminium—emissions of tetrafluoromethane in aluminium production

4.84  Available methods
 (1) Subject to section 1.18, one of the following methods must be used for estimating emissions of tetrafluoromethane released during a year from the operation of a facility that is constituted by the production of aluminium:
 (b) method 2 under section 4.86;
 (c) method 3 under section 4.87.
Note: There is no method 1 or 4 for this provision.
 (2) However, for incidental emissions another method may be used that is