Multi-Sector Air Pollutants Regulations (SOR/2016-151)

Marginal note:Sampling ports

• 71 (1) The location of the sampling port, and its traverse points, in the exhaust pipe for each test run must be determined in accordance with

  • (a) EPA Method 1 or EPA Method 1A, as applicable;

  • (b) ASTM D6522-11; or

  • (c) EC Method A.

• Marginal note:Pre-existing engines without sampling port

  (2) If a pre-existing engine does not have a sampling port that meets the requirements of any of those methods, each test run must

  • (a) be conducted at a single traverse point that is located at the centre of the exhaust pipe at a distance from the engine of at least twice the diameter of that pipe; and

  • (b) have the NO_x emission intensity of the engine expressed in ppmvd_15%.

• Marginal note:After-treatment control devices

  (3) If an after-treatment control device is used, either

  • (a) the location of the sampling port described by subsection (1) must also be downstream of the device; or

  • (b) for the purpose of paragraph (2)(a), the location of the single traverse point must be downstream of the device — rather than the engine — at a distance from the device of at least twice the diameter of the exhaust pipe.

Marginal note:Concentration of NO_x

• 72 (1) The concentration of NO_x in the engine’s exhaust gas for each test run must be determined in accordance with

  • (a) EPA Method 7;

  • (b) EPA Method 7A;

  • (c) EPA Method 7C;

  • (d) EPA Method 7E;

  • (e) EPA Method 320;

  • (f) ASTM D6348-12e1;

  • (g) ASTM D6522-11; or

  • (h) EC Method AP-77-3.

• Marginal note:Concentration of O₂

  (2) The concentration of O₂ in the engine’s exhaust gas for each test run must be determined in accordance with

  • (a) the EPA method entitled Method 3 — Gas Analysis for the Determination of Dry Molecular Weight, set out in Appendix A-2 to Part 60 of the CFR;

  • (b) EPA Method 3A;

  • (c) the EPA method entitled Method 3B — Gas Analysis for the Determination of Emission Rate Correction Factor or Excess Air, set out in Appendix A-2 to Part 60 of the CFR;

  • (d) ASTM D6522-11; or

  • (e) the method entitled Flue and Exhaust Gas Analyses, published by the American Society of Mechanical Engineers and cited as ASME PTC 19.10-1981.

• Marginal note:Moisture content

  (3) For each test run, if the concentration of NO_x in the engine’s exhaust gas is measured on a wet basis or if the NO_x emission intensity of the engine is to be expressed in g/kWh, the moisture content in that gas must be determined in accordance with

  • (a) EPA Method 4;

  • (b) EPA Method 320;

  • (c) ASTM D6348-12e1; or

  • (d) EC Method D.

• Marginal note:Volumetric flow rate

  (4) If the NO_x emission intensity of the engine is to be expressed in g/kWh, the volumetric flow rate of the engine’s exhaust gas must be expressed in m³/h, at 25°C and 101.325 kPa, and be determined in accordance with

  • (a) EPA Method 2;

  • (b) EPA Method 19; or

  • (c) EC Method B.

• Marginal note:Simultaneous measurement

  (5) For each test run, the following measurements must be taken simultaneously at the same traverse point in accordance with section 71:

  • (a) the concentration of NO_x in the engine’s exhaust gas;

  • (b) the concentration of O₂ in the engine’s exhaust gas;

  • (c) the moisture content in the engine’s exhaust gas, if applicable; and

  • (d) the volumetric flow rate of the engine’s exhaust gas, if applicable.

Marginal note:ppmvd_15%

73 If the NO_x emission intensity of the engine is to be expressed in ppmvd_15%, it must be determined for each test run by the formula

Marginal note:g/kWh

• 74 (1) If the NO_x emission intensity of the engine is to be expressed in g/kWh, it must be determined for each test run by the formula

  (1.88 × 10^-3 × C × Q × T)/BW

  where

  C

  is the concentration of NO_x in the engine’s exhaust gas, expressed in parts per million by volume, determined at a given percentage of oxygen (%O₂) in accordance with subsection 72(1);

  Q

  is the volumetric flow rate of the engine’s exhaust gas, expressed in m³/h, determined in accordance with subsection 72(4);

  T

  is the duration of the test run, expressed in hours to two decimal places; and

  BW

  is the brake work of the engine during the test run, expressed in kWh.

• Marginal note:Wet or dry basis

  (2) The elements C and Q described in subsection (1) must be expressed on the same basis, whether wet or dry.

Marginal note:NO_x emission intensity — average

75 The NO_x emission intensity of the engine determined by means of a performance test is the average of the three determinations — one for each test run — of its NO_x emission intensity.

Marginal note:NO_x emission intensity — deemed days

76 The average described in section 75 is deemed to be the NO_x emission intensity of the engine

• (a) for the day on which the performance test is conducted; and

• (b) for every subsequent day until its NO_x emission intensity is determined based on another performance test.

Marginal note:Performance tests

77 In addition to a performance test referred to in section 69, a performance test to determine the NO_x emission intensity, expressed in ppmvd_15% or g/kWh, of a regular-use engine must be conducted

• (a) within 12 months after the first hour of its operation after it first becomes a regular-use engine, if it is a modern engine that has a rated brake power of at least 75 kW;

• (b) within 12 months after any of sections 57 to 59 first applies in respect of the engine;

• (c) within 90 days after a person becomes, on a given date, an owner of an engine that is subject to a NO_x emission intensity limit referred to in any of sections 54 and 57 to 59, if

  • (i) they do not have a record of the information referred to in paragraph 100(i) and section 6 of Schedule 10 in respect of the most recent performance test, if any, conducted on the engine, and

  • (ii) that given date occurs

    • (A) less than 90 days before the end of the 12-month period referred to in paragraph (a) or (b), or

    • (B) after the end of that 12-month period; and

• (d) before an assignment, by a responsible person under subsection 67(1), of a NO_x emission value to an engine that is different from its default NO_x emission value described in subsection 66(2), if

  • (i) the NO_x emission value that they propose to assign is lower than the NO_x emission intensity for the engine determined by means of the most recent performance test conducted on the engine, or

  • (ii) that responsible person does not have a record of the information referred to in paragraph 100(i) and section 6 of Schedule 10 in respect of that most recent performance test.

Marginal note:Subsequent performance test

78 An engine with a rated brake power of at least 375 kW on which a performance test has been conducted under section 77 or this section must have a subsequent performance test conducted to determine its NO_x emission intensity, expressed in ppmvd_15% or g/kWh,

• (a) for a lean-burn engine, by the earlier of the completion of 17,520 hours of operation since the most recent of those performance tests and 36 months after that most recent performance test; and

• (b) for a rich-burn engine,

  • (i) by the earlier of the completion of 8,760 hours of operation since the most recent of those performance tests and 36 months after that most recent performance test, if the concentration of NO_x in the exhaust gas has been determined — under section 89 for at least one emissions check conducted in each 90-day period in accordance with paragraph 79(b) — not to exceed the NO_x emission intensity limit, expressed in ppmvd_15%, applicable to the engine, and

  • (ii) by the earlier of the completion of 4,380 hours of operation since the most recent of those performance tests and nine months after that most recent performance test, in any other case.

Emissions Checks

Marginal note:When emissions check required for certain engines

79 An emissions check to determine the concentration of NO_x in the exhaust gas must be conducted

• (a) on a lean-burn engine with a rated brake power of at least 375 kW,

  • (i) within 365 days after the assignment of a default emission value under subsection 66(1), and

  • (ii) within 365 days after the most recent performance test conducted on the engine under section 77 or 78 or the most recent emissions check conducted on the engine under this section; and

• (b) on a rich-burn engine referred to in subparagraph 78(b)(i), within 90 days after the most recent performance test conducted on the engine under section 77 or 78 or the most recent emissions check conducted on the engine under this section.

Marginal note:Using electrochemical analyzer

• 80 (1) An emissions check must be conducted by means of an electrochemical analyzer.

• Marginal note:Electrochemical analyzers

  (2) The electrochemical analyzer must

  • (a) be capable of simultaneously measuring the concentrations, in an engine’s exhaust gas, of each of the following gases by means of an electrochemical cell for each of those gases:

    • (i) O₂, CO and NO, for

      • (A) a rich-burn engine that is equipped with a three-way catalyst, and

      • (B) an engine whose NO_x in the exhaust gas consists of at most 10% NO₂, based on the results of the most recent performance test conducted on it, and

    • (ii) O₂, CO, NO and NO₂, in any other case;

  • (b) have a resolution, as specified by its manufacturer, that is at most

    • (i) 1 ppm, for CO, NO and, if applicable, NO₂, and

    • (ii) 0.1%, for O₂; and

  • (c) be equipped with a device that monitors the temperature of the NO electrochemical cell.

Marginal note:Calibration error checks and interference responses

81 Before an electrochemical analyzer is used for the first time to conduct an emissions check on an engine,

• (a) an initial sequence of calibration error checks must be conducted on the cells of the analyzer in accordance with section 83; and

• (b) an initial determination of the CO and NO interference responses of the cells of the analyzer must be conducted in accordance with section 84 for each of the calibration error checks in the sequence.