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

Regulations are current to 2016-06-06 and last amended on 2014-08-01. Previous Versions

  •  (1) The tare function of an electronic machine shall operate only in a negative direction in relation to zero.

  • (2) The tare function control mechanism of an electronic machine shall be identified with the word “TARE”, the letters “TR”, or with words or letters that convey the same meaning.

  • (3) An electronic machine may be equipped with full-scale tare; however, the gross weight shall not exceed the rated capacity of the machine in accordance with the limits set out in section 170.

  • (4) The value of the minimum increment of tare of an electronic machine shall be the same as the value of the minimum increment of registration.

  • (5) The use of any mechanism to convert units of measurement (for example, a pound/kg switch) shall be inhibited when the tare is entered into the memory of an electronic machine, unless the mechanism converts all values of weight registration when activated.

  • (6) The tare function of an electronic computing machine shall be self-cancelling so that when any net weight is added to the tare, the total is computed, and when the gross weight is removed from the machine, the weight indication returns to zero in accordance with section 183, unless the machine is in prepackaging mode.

  • (7) A tare entry shall be automatically erased from an electronic computing machine’s memory only after the completion of the weighing operation. The entry of another price per unit of weight, the use of a “clear” mechanism or any other keying sequence shall not affect the tare entry.

  • (8) An electronic computing machine with a tare function shall be equipped with a power failure interlock mechanism that prevents the continuation of the weighing operation when there is a temporary loss of power. When there is a loss of power to an electronic computing machine, all visual indications of the tare function shall extinguish and remain extinguished even when power is restored.

  • (9) A negative weight value shall continue to be displayed on an electronic computing machine when the load-receiving element is empty and the tare function is in operation.

  • (10) There shall be a visual indication on or adjacent to the weight display of an electronic computing machine when the tare function is in operation.

  • (11) If an electronic machine, other than an electronic computing machine, displays only one weight value at a time, there shall be visual indication on or adjacent to the weight display that indicates that the tare function is in operation.

  • (12) If an electronic machine, other than an electronic computing machine, is capable of registering gross, net or tare weight, the weight values shall be clearly identified.

  • SOR/2012-28, s. 5.

 [Repealed, SOR/98-115, s. 13]

 A machine shall be equipped with means to balance it at zero-load and if supplementary material is used for that purpose it shall be so enclosed that it cannot shift position or be readily removed or altered in such a way that the balance condition of the machine is affected.

 A balance ball, balancing weight, spring adjustment, trim potentiometer or other zero adjusting means on a machine shall be operable only by a detachable tool, but on a machine of up to 15 kg or 30 pounds capacity, a balance ball may be operable without a detachable tool if the design provides for controlled friction to hold the balance ball in any set position.

  •  (1) The overall range of the zero-setting mechanism of an electronic machine that may be adjusted externally shall not exceed four per cent of the machine’s rated capacity unless the adjustment is made using a tool that is not permanently affixed to the adjustment mechanism. When activated, that adjustment mechanism shall return the weight indication to zero.

  • (2) The overall range of the zero-tracking mechanism of an electronic machine shall not exceed four per cent of the machine’s rated capacity.

  • (3) The zero-tracking mechanism of an electronic machine shall not be operator-controlled and the maximum weight value corrected at any one time by the zero-tracking mechanism shall not exceed 0.6 times the value of the minimum increment of registration.

  • SOR/2012-28, s. 6.

 When an electronic computing machine displays a weight value less than zero, the total price indicator shall not display any value and the other registration elements, excluding the indicating elements, shall be interlocked to inhibit the registration of negative weight values.

  • SOR/2012-28, s. 6.

 The luminosity contrast between the visual indications and the background of the indicator of an electronic machine shall have a ratio equal to or greater than 4 to 1.

  • SOR/2012-28, s. 6.

 In order to allow for the adjustment of the weight of a commodity, the weight signal of an electronic computing machine must be free-floating until the final weight of the commodity is obtained.

  • SOR/2012-28, s. 6.

 An electronic machine shall be equipped with the means to seal the coarse zero and span adjustment controls so that all other components and adjustments are readily accessible without breaking the seal. The means shall be readily observable upon examination without having to disassemble any part using tools that are not supplied with the machine.

  • SOR/2012-28, s. 6;
  • SOR/2014-111, s. 46.

 An electronic machine shall be equipped with a test system for verifying that each display segment is not continuously on or off. The test system shall permit verification of display segments without any tools or by a self-verifying automatic system that indicates the occurrence of any failure.

  • SOR/2012-28, s. 6.

 [Repealed, SOR/98-115, s. 14]

 When a machine is equipped with a ticket printer or a label printer, the printed numbers and letters shall be of such size, character and colour that they may be easily read under normal conditions of use.

  •  (1) An electronic machine, other than an electronic computing machine, shall not register or print any value when the load exceeds 105 per cent of the rated capacity of the machine.

  • (2) An electronic computing machine shall not register or print any value when the load exceeds the rated capacity of the machine by more than 10 times the value of the minimum increment of registration.

  • SOR/2012-28, s. 7.

 A machine equipped with an electronic digital means of registration shall be capable of giving visual confirmation that it has been returned to zero-load within a range equivalent to the greater of

  • (a) ¼ of the value of the minimum increment of registration, and

  • (b) 0.01 per cent of the capacity of the machine.

  • SOR/90-118, s. 21.
  •  (1) The value of the minimum increment of registration on a machine shall not be greater than 10 kg or 20 pounds unless the capacity of the machine exceeds 100 000 kg or 200,000 pounds, in which case the value of the minimum increment of registration shall not be greater than 20 kg or 50 pounds.

  • (2) The value of the minimum increment of registration on a tank scale that is designed for weighing alcohol or on a hopper scale that is designed for weighing grain in a terminal or transfer elevator shall not be greater than

    • (a) 5 kg or 10 pounds, if the capacity of the scale is equal to or less than 100 000 kg or 200,000 pounds;

    • (b) 10 kg or 20 pounds, if the capacity of the scale exceeds 100 000 kg or 200,000 pounds, but is equal to or less than 200 000 kg or 400,000 pounds; and

    • (c) 20 kg or 50 pounds, if the capacity of the scale exceeds 200 000 kg or 400,000 pounds.

  • (3) The value of the minimum increment of registration on a continuous totalizing weighing machine shall not be greater than 100 kg or 200 pounds.

  • (4) The value of the minimum increment of registration on an electronic computing machine shall not be greater than 10 grams or 0.01 pound.

  • (5) The maximum value of the minimum increment of registration that is permissible on an electronic machine, other than an electronic computing machine, is set out in the following tables:

    TABLE 1

    ItemColumn 1Column 2
    Capacity of MachineMaximum Value of Minimum Increment
    KilogramsKilogram(s)
    1over 100 00020
    2over 20 000 to 100 00010
    3over 10 000 to 20 0005
    4over 5 000 to 10 0002
    5over 2 000 to 5 0001
    6over 1 000 to 2 0000.5
    7over 500 to 1 0000.2
    8over 200 to 5000.1
    9over 100 to 2000.05
    10over 50 to 1000.02
    11over 20 to 500.01
    1220 and under0.005

    TABLE 2

    ItemColumn 1Column 2
    Capacity of MachineMaximum Value of Minimum Increment
    PoundsPound(s)
    1over 200,00050
    2over 40,000 to 200,00020
    3over 20,000 to 40,00010
    4over 10,000 to 20,0005
    5over 5,000 to 10,0002
    6over 2,000 to 5,0001
    7over 1,000 to 2,0000.5
    8over 500 to 1,0000.2
    9over 200 to 5000.1
    10over 100 to 2000.05
    11over 50 to 1000.02
    1250 and under0.01
  • (6) The value of the minimum increment of registration on an electronic machine, other than an electronic computing machine, that is converted from the Canadian system of units to the International System of Units shall not exceed the converted value set out in the following table:

    TABLE

    ItemColumn 1Column 2
    Present Value (Minimum Increment)Converted Value (Minimum Increment)
    Pound(s)Ounce(s)Kilogram(s)
    15020
    22010
    3105
    452
    521
    610.5
    70.580.2
    80.240.1
    90.120.05
    100.0510.02
    110.020.250.01
    120.010.1250.005
  • (7) The value of the minimum increment of registration of an electronic machine shall be equal to the number of kilograms or pounds obtained by using one of the following formulas:

    1 × 10n, 2 × 10n or 5 × 10n,

    where “n” represents a whole number, whether positive, negative or equal to zero.

  • SOR/90-118, s. 21;
  • SOR/2012-28, s. 8.
 
Date modified: