Weights and Measures Regulations (C.R.C., c. 1605)
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Regulations are current to 2024-11-26 and last amended on 2024-09-20. Previous Versions
PART VSpecifications Relating to Devices (continued)
DIVISION IXSolid Volume Measuring Machines
Interpretation
225 In this Division, machine means a machine for determining the computed volume of boxes and other solids on the basis of three mutually perpendicular linear measurements.
Design, Composition and Construction
226 Measuring faces on a machine shall be designed so that they may be held parallel when each of the three principal axes of the object are being measured.
227 A machine shall provide registration of measurement in terms of either cubic decimetres or cubic feet.
Performance
- SOR/2005-297, s. 42(F)
228 When a machine is tested in relation to a relevant local standard for acceptance limits of error by taking the measurement in turn of three lengths the product of which corresponds to a computed volume set out in Column I of an item in a table to section 230 or 231, the machine is within the acceptance limits of error in respect of that computed volume if the amount registered by the machine
(a) is not less than the computed volume by an amount in excess of the volume set out in Column II of that item; and
(b) does not exceed the computed volume by an amount in excess of the amount set out in Column III of that item.
- SOR/89-570, s. 6(F)
229 When a machine is tested in relation to a relevant local standard for in-service limits of error by taking the measurement in turn of three lengths the product of which corresponds to a computed volume set out in Column I of an item in a table to section 230 or 231, the machine is within the in-service limits of error in respect of that computed volume if the amount registered by the machine
(a) is not less than the computed volume by an amount in excess of the volume set out in Column IV of that item; and
(b) does not exceed the computed volume by an amount in excess of the amount set out in Column V of that item.
- SOR/89-570, s. 6(F)
230 The limits of error set out in the following table apply to all solid volume machines designed to establish the space in cubic decimetres taken up by packages, parcels and crates:
TABLE
| Item | Column I | Acceptance Limits of Error | In-Service Limits of Error | ||
|---|---|---|---|---|---|
| Column II | Column III | Column IV | Column V | ||
| Computed Volume | Under Registration of Volume | Over Registration of Volume | Under Registration of Volume | Over Registration of Volume | |
| Cubic Decimetres | Cubic Decimetres | Cubic Decimetres | Cubic Decimetres | Cubic Decimetres | |
| 1 | Up to 30 | 0.3 | 0.15 | 0.3 | 0.15 |
| 2 | 50 | 0.5 | 0.25 | 0.5 | 0.25 |
| 3 | 100 | 0.8 | 0.40 | 0.8 | 0.40 |
| 4 | 200 | 1.2 | 0.60 | 1.2 | 0.60 |
| 5 | 300 | 1.5 | 0.75 | 1.5 | 0.75 |
| 6 | Over 300 | 0.5% of computed volume | 0.25% of computed volume | 0.5% of computed volume | 0.25% of computed volume |
- SOR/89-570, s. 6(F)
231 The limits of error set out in the following table apply to all solid volume machines designed to establish the space in cubic feet taken up by packages, parcels and crates:
TABLE
| Item | Column I | Acceptance Limits of Error | In-Service Limits of Error | ||
|---|---|---|---|---|---|
| Column II | Column III | Column IV | Column V | ||
| Computed Volume | Under Registration of Volume | Over Registration of Volume | Under Registration of Volume | Over Registration of Volume | |
| Cubic Feet | Cubic Feet | Cubic Feet | Cubic Feet | Cubic Feet | |
| 1 | Up to 1 | 0.010 | 0.005 | 0.010 | 0.005 |
| 2 | 2 | 0.020 | 0.010 | 0.020 | 0.010 |
| 3 | 5 | 0.036 | 0.018 | 0.036 | 0.018 |
| 4 | 10 | 0.050 | 0.025 | 0.050 | 0.025 |
| 5 | Over 10 | 0.5% of computed volume | 0.25% of computed volume | 0.5% of computed volume | 0.25% of computed volume |
- SOR/89-570, s. 6(F)
DIVISION XVolumetric Liquid Measuring Machines in General
Interpretation
232 In this Division, machine means a volumetric liquid measuring machine and includes a volumetric liquid meter or a measuring tank for use in trade.
Design, Composition and Construction
233 A machine shall be designed and constructed to ensure complete delivery of the measured liquid and to prevent delivery of any unmeasured liquid.
234 All movable capacity indicators and means of adjustment on a machine shall be sealable.
235 (1) Component parts of a machine the removal or alteration of which could have an effect on the accuracy of measurement of the machine shall be sealable.
(2) Subsection (1) does not apply to a meter designed for measuring liquid food commodities.
236 Except as otherwise authorized by specifications established by the Minister, a machine shall register in units of volume of liquid at the temperature and pressure of the liquid in the measuring element of the machine.
Performance
- SOR/2005-297, s. 42(F)
237 A machine may be tested and calibrated using a liquid other than the liquid that the machine will measure in trade if the test liquid has hydraulic properties similar to the liquid that the machine will measure in trade or the test liquid is used with a correction factor that has been specified by the Minister.
Installation and Use
238 Where a machine is incorporated into a measuring system, the component parts of the system, including the liquid supply tank and any pump, piping, valve or delivery hose, shall be installed and used so as not to cause the machine to cease to measure accurately.
239 Unless otherwise authorized by specifications established by the Minister, a machine shall be installed so as to prevent the inter-mixing of liquids therein unless it is a machine approved for that purpose.
240 When a machine is installed in conjunction with piping other than a delivery hose or a short jumper hose, the piping shall be of rigid material.
DIVISION XIVolumetric Liquid Meters
Interpretation
241 In this Division,
- meter
meter means a volumetric liquid measuring machine for use in trade that is of the meter type or incorporates a meter; (compteur)
- registration
registration includes both visual indication and recorded representation of volume, unit price or monetary value. (enregistrement)
Design, Composition and Construction
242 The rated maximum flow of a meter shall be such that, when it is tested using refined petroleum products with normal lubricating properties such as kerosene or fuel oil, the meter will measure accurately without abnormal wear, and the meter shall be de-rated if necessary for use on products with lesser lubricating properties.
243 (1) The rated minimum flow of a meter designed to measure liquids other than liquefied gases shall be 20 per cent or less of the rated maximum flow of the meter.
(2) Subject to subsection (3), the rated minimum flow of a meter designed to measure liquefied gases shall be 33 per cent or less of the rated maximum flow of the meter.
(3) The rated minimum flow of a meter with a rated maximum flow of 90 L or less per minute that is designed to measure liquefied gases and to dispense liquefied gases to motor vehicles shall be 13 L or less per minute.
- SOR/90-118, s. 30
244 Unless otherwise authorized by specifications established by the Minister, a meter shall have an integral filter or close-coupled strainer appropriate to the type, design and size of the meter.
245 Unless otherwise authorized by specifications established by the Minister, all meters except slow-flow meters and slow-flow dispensers shall have an automatic air-vapour eliminator and a meter for liquefied gases shall also have a combination differential-pressure and back-pressure valve.
246 Any accessory for a liquid meter that can affect the accuracy of the meter shall be sealable.
247 [Revoked, SOR/93-234, s. 2]
248 [Revoked, SOR/90-118, s. 31]
249 (1) Subject to subsection (2), the means of registration on a meter shall be capable of advancement only by the liquid passing through the meter.
(2) A meter register may be designed to be reset to zero by mechanical advancement of the register elements if, during the resetting,
(a) the elements of registration are obscured until the zero position is reached; or
(b) the advancing movement, once started, cannot be stopped until the zero position is reached.
250 The indications on any resettable register, totalizer or ticket printer on a meter that is designed to measure flow in both directions shall advance or reverse according to the flow of the liquid.
251 When a meter has a totalizer or preset register, it shall be clearly differentiated from the delivery register.
252 A resettable register shall have means to return the register accurately to zero, and the money register of a computing type register shall return to zero at the same time that the quantity register is returned to zero.
253 A computing type register shall be designed to prevent any change of the price setting during a delivery and so as to automatically display the unit price at which the register is set to compute.
254 A meter with a rated maximum flow of 350 L or less per minute that is intended to be used to measure and deliver motor fuel to motor vehicles, watercraft and aircraft shall be designed to be inoperable after a delivery until the register is reset to zero.
- SOR/90-118, s. 32
- SOR/93-234, s. 2(E)
255 [Revoked, SOR/93-234, s. 2]
256 Unless otherwise authorized by specifications established by the Minister, a ticket printer shall be interlocked so that it can
(a) print only the quantity delivered; and
(b) deliver only the quantity for which a ticket is printed.
257 A meter that has a ticket printer shall be so designed that a jammed ticket can be removed without breaking the examination seals on the means of adjusting the registration.
- SOR/90-118, s. 33
- SOR/2014-111, s. 46
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