Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:4:p7
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 4 (pt 7/13)
Character Range: 124431–127511

was operating.
 (5) If method 1 is available for the source, the total mass of emissions of the gas for a year calculated under this section must be reconciled against an estimate for that gas from the site for the same period calculated using method 1 for that source.

1.27A  Emissions from a source where multiple fuels consumed
  If more than one fuel is consumed for a source that generates carbon dioxide that is directly measured using method 4 (PEM), the total amount of carbon dioxide is to be attributed to each fuel consumed in proportion to the carbon content of the fuel relative to the total carbon content of all fuel consumed for that source.

1.28  Calculation of emission factors
 (1) Data obtained from periodic emissions monitoring of a gas stream may be used to estimate the average emission factor for the gas per unit of fuel consumed or material produced.
 (2) In this section, data means data about:
 (a) volumetric flow rates estimated in accordance with section 1.31; or
 (b) gas concentrations estimated in accordance with section 1.32; or
 (c) consumption of fuel or material input, estimated in accordance with Chapters 2 to 7; or
 (d) material produced, estimated in accordance with Chapters 2 to 7.

Subdivision 1.3.3.2—Method 4 (PEM)—use of equipment

1.29  Overview
  The following requirements apply to the use of equipment for PEM:
 (a) the requirements in section 1.30 about location of the sampling positions for the PEM equipment;
 (b) the requirements in section 1.31 about measurement of volumetric flow rates in a gas stream;
 (c) the requirements in section 1.32 about measurement of the concentrations of greenhouse gas in the gas stream;
 (d) the requirements in section 1.33 about representative data.

1.30  Selection of sampling positions for PEM equipment
  For paragraph 1.29(a), the location of sampling positions for PEM equipment must be selected in accordance with an appropriate standard.
Note: Appropriate standards include:
                 * AS 4323.1—1995 Stationary source emissions—Selection of sampling positions.
                 * AS 4323.1‑1995 Amdt 1‑1995 Stationary source emissions—Selection of sampling positions.
                 * ISO 10396:2007 Stationary source emissions—Sampling for the automated determination of gas emission concentrations for permanently‑installed monitoring systems.
                 * ISO 10012:2003 Measurement management systems—Requirements for measurement processes and measuring equipment.
                 * USEPA Method 1 Sample and Velocity Traverses for Stationary Sources (2000).

1.31  Measurement of flow rates by PEM equipment
  For paragraph 1.29(b), the measurement of the volumetric flow rates by PEM of the gas stream must be undertaken in accordance with an appropriate standard.
Note: Appropriate standards include:
                 * ISO 10780:1994 Stationary source emissions – Measurement of velocity and volume flowrate of gas streams in ducts.
                 * ISO 14164:1999 Stationary source emissions. Determination of the volume flow rate of gas streams