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

Regulations are current to 2016-11-21 and last amended on 2014-08-01. Previous Versions

  •  (1) Where a railway track scale that is designed for the in-motion weighing of individual coupled railway cars forming a train, and is used solely for determining transportation charges for commodities, is tested dynamically, the acceptance limits of error and in-service limits of error for the scale are the following:

    • (a) at least 70 per cent of the individual weights of the reference cars shall be within 0.2 per cent of the known individual static weight of those reference cars;

    • (b) not more than five per cent of the individual weights of the reference cars shall differ by more than 0.5 per cent from the known individual static weights of those reference cars; and

    • (c) the weight of an individual reference car shall not differ by more than one per cent from the known static weight of that reference car.

  • (2) Where a railway track scale referred to in subsection (1), used for a purpose other than determining transportation charges for commodities, is tested dynamically, the acceptance limit of error and in-service limit of error for each dynamic weighing are 0.15 per cent of the net known test load.

  • (3) The tests referred to in subsections (1) and (2) shall not be conducted more than 10 times.

  • (4) The reference cars and the length of the train used in the tests referred to in subsections (1) and (2) shall be representative of the types and weight range of the railway cars and length of the trains for which the railway track scale is intended to be used.

  • SOR/89-570, s. 6(F);
  • SOR/90-278, s. 6.

 Where a crane scale is designed for use in the weighing of freight to determine freight or shipping charges thereon, the acceptance and in-service of error are 0.5 per cent of the known test load, but not less than 0.125 per cent of the capacity of the scale.

  • SOR/89-570, s. 6(F).

 The acceptance limits of error and the in-service limits of error applicable to a continuous totalizing weighing machine shall be 0.5 per cent of the known weight of the material used to test the machine if the machine

  • (a) was designed for the in-motion weighing of commodities to determine freight or shipping charges or is used solely for this purpose; or

  • (b) was designed for the in-motion weighing of raw material such as sand, gravel, crushed rock, crude ore or other materials of comparable value or is used solely for this purpose.

  • SOR/89-570, s. 6(F);
  • SOR/2005-297, s. 18;
  • SOR/2012-28, s. 11.

 [Repealed, SOR/98-115, s. 22]

 The load discrimination of a machine equipped with a self-indicating or semi-self-indicating means of registration of either the analogue or the digital type shall be such that for the purpose of determining compliance with the acceptance limits of error or in-service limits of error for the machine and at any load from zero to maximum capacity, the addition to or removal from the load-receiving element of a weight corresponding to 1.4 times the value of the minimum increment of registration shall cause a change in registration equal to or greater than the value of the minimum increment of registration.

  • SOR/89-570, s. 6(F);
  • SOR/90-118, s. 26.

 An electronic computing machine, other than one for prepackaging use, shall clear all digital indications of total price and price per unit of weight and shall extinguish the tare indication either when the commodity is removed from the load-receiving element or before another commodity is weighed and its price is computed.

  • SOR/2012-28, s. 12.

 When an electronic computing machine is in prepackaging mode there shall be a visual indication on both the operator and customer sides of the machine, whether by the words “for prepackaging use” or words that convey the same meaning.

  • SOR/2012-28, s. 12.

 The junction boxes of an electronic machine, other than an electronic computing machine, shall be equipped with a sealing mechanism when they contain calibration adjustments.

  • SOR/2012-28, s. 12.

 When the indicator of an electronic machine, other than an electronic computing machine, is connected to two or more weighing locations, each of which may consist of one or more load-receiving elements,

  • (a) the indicator shall be equipped with a separate calibrating circuit for each weighing location, so that the adjustment of one circuit will not affect the calibration of any other;

  • (b) each calibrating circuit shall be marked to identify which weighing location it controls and that indication shall be clearly visible by any party to the transaction for which the machine is being used;

  • (c) the indicator shall be equipped with an automatic means to clearly identify any weighing location that is in use; and

  • (d) any interconnecting cable that may affect the calibration shall be identified to indicate the weighing location to which it is connected.

  • SOR/2012-28, s. 12.

Installation and Use

 [Repealed, SOR/98-115, s. 23]

 An installed machine shall be protected against wind, rain, blowing snow, extremes of temperature, variations in electromagnetic and electrostatic fields and any abnormal conditions of use to ensure that the machine can measure accurately and is not subject to premature deterioration in performance.

 Water from any source shall be drained away from the machine and all surfaces under the machine, including floors of pits, shall be kept dry.

 Before use, a portable machine shall be placed on a level and stable supporting surface and shall be properly levelled.

 [Repealed, SOR/98-115, s. 24]

 A machine shall, before use, be adjusted to register zero when there is no load on the load receiving element, unless another mode of operation is allowed for the class, type or design of machine by specifications established by the Minister or by a notice of approval.

  • SOR/2005-297, s. 41(F).

 [Repealed, SOR/98-115, s. 25]

DIVISION VIILinear Measuring Machines

Interpretation

 In this Division,

known test length

known test length means a sample of a material that is representative in thickness and texture of the kind of material that a machine is designed to measure, the length of which has been determined in relation to a local standard; (longueur de contrôle connue)

machine

machine means a linear measuring machine for use in trade. (appareil)

  • SOR/90-118, s. 28.

Design, Composition and Construction

 The measuring element on a machine shall be designed and constructed so as to reduce to a practicable minimum any slippage of material being measured.

 The registering element on a machine shall be readily returnable to a definite zero indication and means shall be provided on the machine to prevent the return of the registering element to less than zero registration.

 Registrations of length and money value shall be accurate when the machine is operated at any speed and in any manner to which it may reasonably be subjected in trade use and when it is operated in either a forward or a backward direction.

Performance

[SOR/2005-297, s. 42(F)]

 Where a test that consists of measuring a known test length set out in Column I of an item of the appropriate table to sections 216 to 219 is carried out on a machine, the machine is within the acceptance limits of error in respect of the known test length if the length registered by the machine is

  • (a) not less than the known test length by an amount greater than the amount set out in Column II of that item; and

  • (b) not more than the known test length by an amount greater than the amount set out in Column III of that item.

  • SOR/89-570, s. 6(F);
  • SOR/90-118, s. 29.

 Where a test that consists of measuring a known test length set out in Column I of an item of the appropriate table to sections 216 to 219 is carried out on a machine, the machine is within the in-service limits of error in respect of the known test length if the length registered by the machine is

  • (a) not less than the known test length by an amount greater than the amount set out in Column IV of that item; and

  • (b) not more than the known test length by an amount greater than the amount set out in Column V of that item.

  • SOR/89-570, s. 6(F);
  • SOR/90-118, s. 29.

 The limits of error set out in the following table apply to all fabric machines registering in terms of metric units of length:

TABLE

ItemColumn IAcceptance Limits of ErrorIn-Service Limits of Error
Column IIColumn IIIColumn IVColumn V
Known Test LengthUnder Registration of LengthOver Registration of LengthUnder Registration of LengthOver Registration of Length
MetresMillimetresMillimetresMillimetresMillimetres
1Up to 263106
2364108
35851610
471362513
51019103819
61525135025
7Over 1525 mm plus 1.5 mm per m of known test length13 mm plus 0.8 mm per m of known test length50 mm plus 3 mm per m of known test length25 mm plus 1.5 mm per m of known test length
  • SOR/89-570, s. 6(F).
 
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