Climate Change (Unique Emissions Factors) Regulations 2009

22 Sampling and testing requirements for the periodic source testing option

• (1) A coal purchasing participant, coal importing participant, or a natural gas purchasing participant using the periodic source testing option to calculate a unique emissions factor for N₂O and CH₄ in relation to a class of coal or natural gas must collect information about,—

  • (a) the total tonnes of the class of fuel combusted in the particular equipment during the measurement period; and

  • (b) the mean gross calorific value of the class of fuel combusted in the particular equipment during the measurement period.

  (2) A waste combustion participant using the periodic source testing option to calculate a unique emissions factor in relation to a class of used or waste oil, used tyres, or waste must,—

  • (a) if the person wishes to use the method specified in regulation 23(2)(a) to calculate total energy input to the particular equipment from the class of fuel during the measurement period,—

    • (i) collect information about the total tonnes of the class of fuel combusted in the particular equipment during the measurement period; and

    • (ii) collect representative samples of the class of fuel for which the unique emissions factor is sought during the measurement period in accordance with the procedures in,—

      • (A) for solid fuels, CEN/TS 14778–1:2005 or CEN/TS 15442:2006:

      • (B) for used or waste oil, ASTM D4057–06, ASTM D4177–95 (2005), or ISO 3170:2004; and

    • (iii) have the following tests carried out on each of the samples of the fuel by a person or laboratory that is accredited as complying with ISO 17025:2005 by International Accreditation New Zealand, an overseas accreditation agency with whom International Accreditation New Zealand has a mutual recognition agreement, or an overseas accreditation agency recognised under New Zealand’s mutual recognition arrangements to carry out the tests:

      • (A) for solid fuels, CEN/TS 15400:2006 (gross calorific value); or

      • (B) for used or waste oil, ASTM D240–02 (2007) (gross calorific value):

  • (b) if the person wishes to use the method specified in regulation 23(2)(b) to calculate total energy input to the particular equipment from the class of fuel during the measurement period,—

    • (i) record the total quantity of energy generated from the particular equipment through its combustion of the class of fuel during the measurement period in terajoules; and

    • (ii) estimate the efficiency, on a gross energy basis, of the particular equipment during the measurement period; and

    • (iii) if the class of fuel is a class of used or waste oil, calculate—

      • (A) the total number of tonnes of obligation fuel component of the used or waste oil combusted by the particular equipment during the measurement period; and

      • (B) the calorific value of the used or waste oil by obtaining samples and carrying out tests in accordance with paragraph (a)(ii) and (iii).

  (3) A participant using the periodic source testing option must, at sufficient intervals during the measurement period to ensure that the data is repesentative,—

  • (a) measure in accordance with the procedures in ISO 10780:1994 or ISO 14164:1999 the volumetric flow rate for the stacks from which gases resulting from combustion of the class of fuel are emitted ; and

  • (b) have tests to measure CH₄ and N₂O concentrations (and if relevant for waste combustion participants, CO₂ concentrations) by volume in the gas stream from the stacks carried out in accordance with one of the following standards by a person or laboratory that is accredited as complying with ISO 17025:2005 by International Accreditation New Zealand, an overseas accreditation agency with whom International Accreditation New Zealand has a mutual recognition agreement, or an overseas accreditation agency recognised under New Zealand’s mutual recognition arrangements to carry out the tests:

    • (i) ISO 12039:2001:

    • (ii) USEPA—Method 3A—2006:

    • (iii) USEPA—Method 3C—1996:

    • (iv) VDI 2469–1 (measurement of nitrous oxide):

    • (v) ASTM D6348–03 (determination of gaseous compounds); and

  • (c) at the time of each of the measurements referred to in paragraph (b),—

    • (i) measure and record the pressure of the gas stream in the stacks in kilopascals; and

    • (ii) measure and record the temperature of the gas stream in the stacks in Kelvin; and

    • (iii) if the participant is a waste combustion participant and the class of fuel contains non-biomass, have tests to measure the non-biomass fraction of the CO₂ concentrations in the gas stream in the stacks carried out in accordance with ASTM D6866–08 by a person or laboratory that is accredited as complying with ISO 17025:2005 by International Accreditation New Zealand, an overseas accreditation agency with whom International Accreditation New Zealand has a mutual recognition agreement, or an overseas accreditation agency recognised under New Zealand’s mutual recognition arrangements to carry out the tests.

  (4) For the purposes of the tests referred to in subclause (3), sampling and measuring must be undertaken using devices that are regularly maintained and calibrated.