Weights and Measures Regulations (C.R.C., c. 1605)

266 (1) Subject to subsections (4) and (5), the limits of error set out in the tables to subsections (2) and (3) apply to all positive displacement bulk volumetric liquid meters, including vehicle-mounted meters, that are designed to measure volumes of 180 litres or more, or 40 gallons or more, of refined petroleum products such as gasoline and fuel oils, foodstuffs such as milk, liquid fertilizers of the solution type such as aqua ammonia, or other liquids of low viscosity.

(2) The limits of error set out in the following table apply to meters, generally of a size 65 mm or 2½ inches or smaller that are designed to measure liquids of low viscosity:

(3) The limits of error set out in the following table apply to meters, generally of a size 75 mm or three inches or larger that are designed to measure liquids of low viscosity:

(4) The acceptance limits of error and in-service limits of error set out in the tables to subsections (2) and (3) apply to known test quantities equal to or greater than that delivered by the meter in one minute at the maximum operating rate.

(5) The acceptance limits of error set out in Column II of the tables to subsections (2) and (3) apply only to tests made under controlled conditions such as bench tests and, for tests for acceptance limits of error under other conditions, the limits of error set out in Column III of those tables shall apply.

267 (1) Subject to subsections (4) and (5), the limits of error set out in the tables to subsections (2) and (3) apply to all positive displacement bulk volumetric liquid meters, including vehicle-mounted meters, that are designed to measure volumes of 180 litres or more or 40 gallons or more of heavy petroleum products, such as bunker oils, foodstuffs such as syrups, liquid cattle feed, fertilizers of high specific gravities or other liquids of high viscosity.

(2) The limits of error set out in the following table apply to meters, generally of a size 65 mm or 2½ inches or smaller, that are used to measure liquids of high viscosity:

(3) The limits of error set out in the following table apply to meters, generally of a size 75 mm or three inches or larger, that are used to measure liquids of high viscosity:

(4) The acceptance limits of error and in-service limits of error set out in the tables to subsections (2) and (3) apply to known test quantities equal to or greater than that delivered by the meter in one minute at maximum operating rate.

(5) The acceptance limits of error set out in Column II of the tables to subsections (2) and (3) apply only to tests under controlled conditions such as bench tests, and for tests for acceptance limits of error under other conditions, the limits of error set out in Column III of those tables shall apply.

268 (1) Subject to subsection (7), the limits of error set out in the tables to subsections (2) to (6) apply in respect of all meters that are designed to measure liquefied gases at ambient temperatures.

(2) The limits of error set out in the table to this subsection apply in respect of meters of a size from 25 mm to 50 mm or one inch to two inches, when tested using the liquefied gases the meters are intended to measure and using a narrow neck metal standard of the vapour displacement type.

(3) The limits of error set out in the table to this subsection apply in respect of meters of a size 25 mm or larger or one inch or larger, except meters referred to in paragraph (4)(a), when tested using the liquefied gases the meters are intended to measure and using a pipe prover standard or master meter standard.

(4) The limits of error set out in the table to this subsection apply in respect of

• (a) meters used to dispense liquid propane to motor vehicles, when tested using the liquefied gases the meters are intended to measure and using a pipe prover standard or master meter standard; and

• (b) meters of a size smaller than 25 mm or one inch, when tested using the liquefied gases the meters are intended to measure and using a pipe prover standard or master meter standard.

  	Column I		Column II	Column III
  Item	Known Test Quantity		Acceptance Limits of Error	In-Service Limits of Error
  	Litres	Gallons
  1	5	1	60 mL or 2 fluid ounces	120 mL or 4 fluid ounces
  2	10	2	85 mL or 3 fluid ounces	170 mL or 6 fluid ounces
  3	20 or more	4 or more	0.5% of known test quantity	1% of known test quantity

(5) The limits of error set out in the table to this subsection apply in respect of

• (a) meters used to dispense liquid propane to motor vehicles, when tested using the liquefied gases the meters are intended to measure and using a gravimetric prover standard; and

• (b) meters of a size smaller than 25 mm or one inch, when tested using the liquefied gases the meters are intended to measure and using a gravimetric prover standard.

  	Column I		Column II	Column III
  Item	Known Test Quantity		Acceptance Limits of Error	In-Service Limits of Error
  	Litres	Gallons
  1	from 25 to 45	from 5 to 10	1.5%	2%
  2	more than 45	more than 10	0.8%	1%

(6) The limits of error set out in the table to this subsection apply in respect of meters of a size 25 mm or larger or one inch or larger, except meters referred to in paragraph (5)(a), when tested using the liquefied gases the meters are intended to measure and using a gravimetric prover standard.

(7) The acceptance limits of error set out in Column II of the tables to subsections (2) to (6) apply only in respect of tests made under controlled conditions, and for tests made under other conditions the limits of error set out in Column III of those tables apply.

269 (1) Subject to subsection (4), the limits of error set out in the tables to subsections (2) and (3) apply to all slow-flow meters rated at 115 litres per hour or less or 25 gallons per hour or less for use in trade in pipeline systems to measure fuel oil, stove oil or kerosene supplied to furnaces and other heating equipment, or in any other system where the meter is permanently connected to a point of fuel consumption.

(2) The limits of error set out in the following table apply to meters designed to operate at 2.25 to 22.5 litres or more per hour or 0.5 to five gallons or more per hour:

(3) The limits of error set out in the following table apply to meters designed to operate at 0.10 to 3.4 litres or more per hour or 0.02 to 0.75 gallons or more per hour:

(4) The limits of error set out in the tables to subsections (2) and (3) refer to the results of bench tests made in accordance with specifications established by the Minister for slow-flow meters.