Regulations Limiting Carbon Dioxide Emissions from Natural Gas-fired Generation of Electricity — 19
Sampling 19 (1) Subject to subsection (2), the determination of the value of the elements related to carbon content referred to in section 18 must be based on fuel samples taken in accordance with this section. Carbon content provided by the supplier (2) If the supplier of the fuel has provided the carbon content of the fuel, the responsible person can obtain from that supplier the carbon content of the fuel for the specified sampling period and at the specified minimum sampling frequency rather than taking samples in accordance with subsection (3). Frequency (3) Each fuel sample must be taken at a time and location in the fuel handling system of the facility that provides the following representative samples of the fuel combusted at the applicable minimum frequency: (a) for natural gas, during each sampling period consisting of each year that the unit generates electricity or produces useful thermal energy, two samples taken that year, with each of those samples being taken at least four months after any previous sample has been taken, in accordance with whichever of the following standard that applies: (i) ASTM D4057-12, entitled Standard Practice for Manual Sampling of Petroleum and Petroleum Products , (ii) ASTM D4177-16e1, entitled Standard Practice for Automatic Sampling of Petroleum and Petroleum Products , (iii) ASTM D5287-08(2015), entitled Standard Practice for Automatic Sampling of Gaseous Fuels , and (iv) ASTM F307-13, entitled Standard Practice for Sampling Pressurized Gas for Gas Analysis ; (b) for refinery gas, during each sampling period consisting of each day that the unit generates electricity or produces useful thermal energy, one sample per day that is taken at least six hours after any previous sample has been taken, in accordance with any applicable standard referred to in paragraph (a); (c) for a type of liquid fuel or of a gaseous fuel other than refinery gas and natural gas, during each sampling period consisting of each month that the unit generates electricity or produces useful thermal energy, one sample per month that is taken at least two weeks after any previous sample has been taken, in accordance with any of the standards referred to in paragraph (a); and (d) for a solid fuel, one composite sample per month that consists of sub-samples, each having the same mass, that are taken from the fuel that is fed for combustion during each week that begins in that month and during which the unit generates electricity or produces useful thermal energy, and after all fuel treatment operations have been carried out but before any mixing of the fuel from which the sub-sample is taken with other fuels, and at least 72 hours after any previous sub-sample has been taken. Additional samples (4) For greater certainty, the responsible person who, for the purposes of these Regulations, takes more samples than the minimum required under subsection (3) must make the determination referred to in subsection (1) based on each sample taken — and in the case of composite samples, each sub-sample taken — including those additional samples. Significantly modified boiler units (5) In the case of a boiler unit referred to in subsection 3 (4), one fuel sample is required for the initial performance test and each subsequent performance test and it must be taken in accordance with one of the applicable standards set out in subparagraphs (3)(a)(i) to (iv).