Weights and Measures Regulations — 268
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. TABLE 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. TABLE 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. TABLE 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. TABLE 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. TABLE 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. SOR/89-570, s. 6(F); SOR/90-118, s. 36