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

258 Where an automatic temperature-compensated or other type of compensated register is installed on a meter, an uncompensated register shall also be provided that indicates the uncompensated volume measured by the meter.

259 The purchaser’s cumulative register on a key-operated self-serve meter shall be designed so that it is readily visible to the purchaser at the time of delivery and will permit comparison with the quantity indication of the delivery shown by the primary indicator.

260 A meter shall have a sealable means of adjustment that will permit the meter to be adjusted to within 0.05 per cent of the quantity dispensed through the meter.

Performance

261 When a meter is tested for acceptance limits of error at any flow rate between its rated maximum flow and its rated minimum flow using a known test quantity of liquid set out in Column I of an item in the applicable table to sections 265 to 270, the meter is within the acceptance limits of error in respect of that quantity if the quantity registered by the meter does not differ from the known test quantity by an amount in excess of the amount set out in Column II of that item.

262 When a meter is tested for in-service limits of error at any flow rate between its rated maximum flow and its rated minimum flow using a known test quantity of liquid set out in Column I of an item in the applicable table to sections 265 to 270, the meter is within the in-service limits of error in respect of that quantity if the quantity registered by the meter does not differ from the known test quantity by an amount in excess of the amount set out in Column III of that item.

263 Where a meter is tested for acceptance limits of error or in-service limits of error using three consecutive tests conducted at any single rate of flow or at any flow rate of the same pattern that falls between its rated maximum flow and its rated minimum flow, the spread of the test results shall not exceed two fifths of the applicable limit of error for the meter.

264 [Revoked, SOR/90-118, s. 35]

• 265 (1) Subject to subsection (4), the limits of error set out in the tables to subsections (2) and (3) apply to slow-flow dispensers incorporating either meters or self-measuring pumps, dispensers for motor fuel of the service station type, meters on refuellers for small aircraft and boats, meters on vehicle tanks and to all other meters for use in measuring automotive or petroleum liquids in retail trade and that are not otherwise mentioned in the tables in this Division.

• (2) The limits of error set out in the following table apply to meters that register in metric units of volume:

  	Column I	Column II	Column III
  Item	Known Test Quantity	Acceptance Limits of Error	In-Service Limits of Error
  	Litres	Millilitres	Millilitres
  1	0.10	2	4
  2	0.20	2.5	5
  3	0.50	6	12
  4	1	10	20
  5	2	15	30
  6	5	30	60
  7	10	40	80
  8	20	50	100
  9	50	100	200
  10	100	220	440
  11	250 or more	3/16% of known test quantity	3/8% of known test quantity

• (3) The limits of error set out in the following table apply to meters that register in Canadian units of volume:

  	Column I	Column II	Column III
  Item	Known Test Quantity	Acceptance Limits of Error	In-Service Limits of Error
  	Pints	Fluid Ounces	Fluid Ounces
  1	½	1/8	¼
  2	1	¼	½
  	Quarts
  3	1	3/8	¾
  4	2	5/8	1¼
  	Gallons
  5	1	1	2
  6	2	1¼	2½
  7	5	2	4
  8	10	3½	7
  9	20	6½	13
  10	50 or more	3/16% of known test quantity	3/8% of known test quantity

• (4) 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.

• 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:

  	Column I	Column II	Column III
  Item	Known Test Quantity	Acceptance Limits of Error	In-Service Limits of Error
  1	Any volume of 225 litres or more up to 900 litres or of 50 gallons or more up to 200 gallons	3/16% of known test quantity	¼% of known test quantity

• (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:

  	Column I	Column II	Column III
  Item	Known Test Quantity	Acceptance Limits of Error	In-Service Limits of Error
  1	Any volume of 1 350 litres or more or of 300 gallons or more	1/8% of known test quantity	¼% of known test quantity

• (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:

  	Column I	Column II	Column III
  Item	Known Test Quantity	Acceptance Limits of Error	In-Service Limits of Error
  1	Any volume of 225 litres or more up to 900 litres or of 50 gallons or more up to 200 gallons	¼% of known test quantity	½% of known test quantity

• (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:

  	Column I	Column II	Column III
  Item	Known Test Quantity	Acceptance Limits of Error	In-Service Limits of Error
  1	Any volume of 1 350 litres or more, or of 300 gallons or more	3/16% of known test quantity	3/8% of known test quantity

• (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.

  	Column I		Column II	Column III
  Item	Known Test Quantity		Acceptance Limits of Error	In-Service Limits of Error
  	Litres	Gallons
  1	225 or more	50 or more	0.5% of known test quantity	1% of known test quantity

• (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.

  	Column I		Column II	Column III
  Item	Known Test Quantity		Acceptance Limits of Error	In-Service Limits of Error
  	Litres	Gallons
  1	225 or more	50 or more	0.25% of known test quantity	0.5% of known test quantity

• (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.

  	Column I		Column II	Column III
  Item	Known Test Quantity		Acceptance Limits of Error	In-Service Limits of Error
  	Litres	Gallons
  1	from 100 to 200	from 20 to 45	0.75%	1%
  2	more than 200	more than 45	0.75%	0.75%

• (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.