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Enabling statute: Weights and Measures Act
    Weights and Measures Regulations
      PART V: SPECIFICATIONS RELATING TO DEVICES
Disclaimer: These documents are not the official versions (more).
Source: http://laws.justice.gc.ca/en/W-6/C.R.C.-c.1605/253600.html
Regulation current to September 15, 2006

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DIVISION IV

STATIC LINEAR MEASURES

Interpretation

107. In this Division, “linear measure” means a static linear measure for use in trade.

Design, Composition and Construction

108. Rigid linear measures shall be smooth and straight and made of steel, brass, hardwood or such other dimensionally stable materials as will retain their shape and remain reasonably permanent under normal conditions of use.

109. The ends of linear measures made of wood or other materials susceptible to wear through use shall be protected by a material, not less durable than brass, permanently attached to the ends.

110. Tape linear measures shall be made of steel, woven tape or other suitable dimensionally stable and durable material.

111. The units of measurement on a linear measure shall be so identified as to prevent confusion between metric and Canadian units.

112. In any series of graduations on a linear measure, lines representing equal intervals, shall be uniform in size and character and spaced at equal intervals.

113. Where figures, words, symbols or combinations thereof are set out on a linear measure to define the value of sub-graduations, they shall not be so placed as to interfere with the accuracy of reading or to cause confusion to the user.

114. The width of a graduation line shall in no case be greater than the width of the minimum clear interval between graduations.

Performance

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

115. When a linear measure has an indicated length between ends or between one end and any graduation or between any two graduations and that length is set out in Column I of an item in a table to sections 118 and 119, and the linear measure is tested for acceptance limits of error in relation to a relevant local standard of length, the linear measure is within the acceptance limits of error in respect of such indicated length if the actual length determined by the test

(a) is not less than its indicated length, and

(b) does not exceed its indicated length

by an amount in excess of the amount set out in Column II of that item.

SOR/89-570, s. 6(F).

116. When a linear measure has an indicated length between ends or between one end and any graduation or between any two graduations and that length is set out in Column I of an item in a table to sections 118 and 119, and the linear measure is tested for in-service limits of error in relation to a relevant local standard of length, the linear measure is within the in-service limits of error in respect of such indicated length if the actual length determined by the test

(a) is not less than the indicated length, and

(b) does not exceed its indicated length

by an amount in excess of the amount set out in Column III of that item.

SOR/89-570, s. 6(F).

117. When a test referred to in section 115 or 116 is carried out on

(a) a tape linear measure, other than a land surveyor’s tape linear measure, the measure shall be supported on a flat surface;

(b) a metal tape linear measure that is designed to be used under tension and the measure has

(i) metric units of measurement and is 10 metres or less in length, it shall be subjected to a tension of 25 N,

(ii) metric units of measurement and is over 10 metres in length, it shall be subjected to a tension of 50 N,

(iii) only Canadian units of measurement and is 25 feet or less in length, it shall be subjected to a tension of 5 pounds, and

(iv) only Canadian units of measurement and is over 25 feet in length, it shall be subjected to a tension of 10 pounds;

(c) a woven tape measure that has metric units of measurement, it shall be subjected to a tension of 25 N;

(d) a woven tape measure that has only Canadian units of measurement, it shall be subjected to a tension of 5 pounds; and

(e) a metal tape measure that, when extended, becomes semi-rigid, it shall not be subjected to a tension during the test.

118. (1) Subject to subsection (2), the limits of error set out in the following table apply to all metal or woven fabric tape measures with graduations and markings in terms of metric units of length:

TABLE

 

 

Acceptance

Limits of Error

In­Service

Limits of Error

 

Column I

Column II

Column III

Item

Indicated Length

Over or Under

Indicated Length

Over or Under

Indicated Length

 

 

Metres 

Millimetres 

Millimetres 

  1

    0.2

  0.2

  0.2

  2

    0.5

  0.4

  0.4

  3

    1

  0.6

  0.6

  4

    1.5

  0.8

  0.8

  5

    2

  1

  1

  6

    3

  1.5

  1.5

  7

    5

  2

  2

  8

    7

  2.5

  2.5

  9

  10

  3

  3

10

  15

  3.5

  3.5

11

  20

  4

  4

12

  30

  5.5

  5.5

13

  50

  7.5

  7.5

14

  70

  9

  9

15

100

12

12

(2) The limits of error for rigid linear measures with graduations and markings in terms of metric units of length are twice the limits of error set out in the table to subsection (1).

SOR/89-570, s. 6(F).

119. (1) Subject to subsection (2), the limits of error set out in the following table apply to all metal or woven fabric tape measures with graduations and markings in terms of Canadian units of length:

TABLE

 

 

Acceptance

Limits of Error

In­Service

Limits of Error

 

Column I

Column II

Column III

Item

Indicated Length

Over or Under

Indicated Length

Over or Under

Indicated Length

 

 

Feet 

Inches 

Inches 

  1

    2 or less

1/64

1/64

  2

    3 to 6

1/32

1/32

  3

  10

3/64

3/64

  4

  15

1/16

1/16

  5

  20

3/32

3/32

  6

  30

3/32

3/32

  7

  50

1/8

1/8

  8

  75

3/16

3/16

  9

100

3/16

3/16

10

150

1/4

1/4

11

200

5/16

5/16

(2) The limits of error for rigid linear measures with graduations and markings in terms of Canadian units of length are twice the limits of error set out in the table to subsection (1).

SOR/89-570, s. 6(F).

DIVISION V

WEIGHING AND MEASURING MACHINES IN GENERAL

Interpretation

120. In this Division,

“machine” means a weighing machine or measuring machine for use in trade, other than one referred to in the Specifications Relating to Non-Automatic Weighing Devices (1998); (appareil)

“registration” includes both visual indication and recorded representation of quantity, unit price or monetary value. (enregistrement)

SOR/98-115, s. 7; SOR/2005–130, s. 7.

Design, Composition and Construction

121. A machine shall be of a design, composition and construction that will enable it to resist such exposure to vibration, the product measured, foreign matter, dirt, moisture and extremes of temperature as may be encountered in its intended service, so that wear of its moving components will be minimized, its accuracy will be maintained, its operating parts will continue to function properly and its means of adjustment will retain their settings.

122. and 123. [Repealed, SOR/98-115, s. 8]

124. Any electrical or electronic components, equipment or accessories attached to or used in conjunction with a machine that have or can have an effect on the accuracy of the machine shall function properly despite such steady-state and transient variations in the frequency, voltage and waveform of the electrical supply and disturbances in the surrounding electromagnetic and electrostatic field as may normally exist in the intended service.

125. When a machine requires an electrical power supply, the frequency, voltage and current requirements and any special limitations on the stability or quality of power supply required to enable the machine to measure accurately shall be marked on the machine.

126. A machine shall be provided with means of registration that are appropriate for the class, type or design of machine and for its intended service, installation and use.

SOR/2005-297, s. 41(F).

127. All registrations shall be clear, definite and easily legible under conditions of normal use of the machine.

128. [Repealed, SOR/98-115, s. 9]

129. Where a machine provides a printed record of the registration on a ticket or form, the ticket or form shall contain a statement of

(a) the quantity measured in the transaction or, where permitted or required by these Regulations or by specifications established by the Minister, a start and finish print such that the quantity measured can be calculated by subtraction;

(b) when the computed price is shown, the unit price for the commodity measured;

(c) the name, symbol or abbreviation appropriate to the unit of measurement registered and, as applicable, to the unit price and total price; and

(d) such further information as may be required by these Regulations or by specifications established by the Minister.

SOR/93-234, s. 2.

130. A machine equipped with an indicator or printer shall be capable of giving a visual or printed indication that the device has been properly returned to start position before any commodity is measured.

131. The graduations on an analogue type of indicator or printer for a machine shall conform to the following specifications:

(a) in any series of graduations the lines or marks of corresponding graduations shall be uniform in size and character;

(b) the width of a graduation line or mark shall not be greater than the width of the minimum clear interval between graduations;

(c) graduation lines or marks shall be varied in length or size so that they may be accurately read;

(d) in a series of graduations, intervals representing identical quantities shall not differ by a ratio greater than 1.2 to 1;

(e) graduations intended to have specific values shall be defined by figures, words, symbols or combinations thereof uniformly placed with reference to the graduations and as close thereto as practicable, but not so positioned as to interfere with the accuracy of reading; and

(f) graduations and their defining figures, words and names or symbols or abbreviations for the unit of measurement shall be such that they will not become obliterated or illegible under conditions of normal use of the machine.

132. The indicating element of an analogue type of indicator and the imprint of an analogue printer of a machine shall conform to the following specifications:

(a) the indicating portion of a poise or pointer and its relation to any associated series of graduations shall be such that there will be no confusion as to the quantity indicated or printed;

(b) the indicating portion of a poise or pointer shall reach but shall not obscure the finest graduation with which it is used;

(c) if the indicating portion of a pointer and the graduations are in the same plane, there may be a distance of not more than 1.0 mm or 0.04 inch between the end of the indicating portion and the end of the graduations, the distance being measured along the line of the graduations;

(d) the width of an indicating line or of the indicating portion of a pointer shall not be greater than the width of the narrowest graduation with which it is used; and

(e) the clearance between an indicating line or the indicating portion of a pointer and the reading surface of the graduations shall not be more than 1.5 mm or 0.06 inch unless adequate provision is made to prevent errors due to parallax.

133. [Repealed, SOR/98-115, s. 10]

134. Mechanical digital means of registration for a machine of the drum cyclometer or similar type shall conform to the following specifications:

(a) all digits except the last shall remain centrally aligned;

(b) there shall be means to show when the last digit is centrally aligned;

(c) any graduation lines on the finest indicating element shall provide a decimal or binary subdivision of the quantity between its successive digits;

(d) the digits representing a whole unit of measurement or a decimal multiple thereof shall be of uniform size, character and colour;

(e) the digits representing a decimal submultiple of the unit of measurement shall be set apart by a decimal point or comma; and

(f) where required by specifications for the particular class or type of machine, the digits representing a decimal or binary fraction of the unit of measurement shall be differentiated from the other digits by their size, character, colour or by a supplementary symbol.

SOR/2005-297, s. 41(F).

135. Electronic digital means of indication for a machine shall conform to the following specifications:

(a) all digits shall be of the same height;

(b) the digits representing a decimal submultiple of the unit shall be set apart by a decimal point or comma; and

(c) the brightness of the electronically displayed digits and other information shall be such that they may be easily read under normal conditions of use.

136. Associated with any digital registration by a machine there shall be suitably located defining words and the name, symbol or abbreviation for the unit or units of measurement appropriate in size and such that they will not become obliterated or illegible under normal conditions of use of the machine.

137. Indicators and printers for monetary values shall conform to the same specifications as indicators and printers for registration of units of quantity.

Performance

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

138. Within such limits of repeatability as may be required by these Regulations or by specifications established by the Minister, a machine shall be capable of repeating its registrations for each identical load or quantity delivered regardless of repeated manipulations of any or all of the elements of the machine in a manner approximating normal conditions of use of the machine.

139. (1) Subject to subsection (2), where a machine has or is installed with two or more means of registration that have the same units of measurement, the registrations shall be in accordance with the following criteria:

(a) in the case of electronic digital means of registration, the registrations thereof shall

(i) where the values of minimum increment of registration are the same, be in exact agreement, or

(ii) where the values of minimum increment of registration are not the same, be in agreement within 0.6 times the largest of those values of minimum increment of registration;

(b) in the case of mechanical digital means of registration, the registrations thereof shall be in agreement within 0.6 times the largest of the values of minimum increment of registration;

(c) in the case of analogue means of registration, the registrations thereof shall be in agreement within 0.25 times the largest of the values of minimum increment of registration; and

(d) in the case of combined digital and analogue means of registration, the registrations thereof shall be in agreement within 0.6 times the largest of the values of minimum increment of registration.

(2) A means of providing analogue registration that is of the servo-follower type and that is installed prior to January 1, 1976 shall be in agreement with any other analogue or digital means of registration connected to the same machine within twice the finest graduation.

SOR/90-118, s. 19; SOR/2005-297, s. 15.

140. The registration of monetary value on a machine provided with means of registration for monetary value shall be in mathematical agreement with the quantity indication and unit price, within such monetary limits as may be allowed by these Regulations or by specifications established by the Minister and the machine shall have words or symbols to differentiate clearly between the monetary value and the quantity registrations.

Installation and Use

141. A machine that has electrical components or equipment or accessories attached to or used in conjunction with it that have or can have an effect on the accuracy of the machine shall be connected to an electrical supply the characteristics of which are as specified by the manufacturer of the machine and the electrical wiring and other electrical installation affecting the machine shall be in accordance with the specifications of the manufacturer and with specifications established by the Minister for that class, type or design of machine.

SOR/2005-297, s. 41(F).

142. The installation and use of a machine shall be such as to ensure that it is protected from abnormal environmental factors such as excessive dust or extremes of temperature, vibration, electromagnetic or electrostatic fields that could have an adverse effect on its performance.

143. A machine, other than a scale used for prepackaging or a device described in subsection 4(2), shall be installed so that its primary means of indication can be clearly read by any party to the transaction for which the machine is being used, but, if such installation is not practicable, a secondary means of indication shall be provided to allow the parties to the transaction to read the indication.

SOR/2005-297, s. 16

144. The primary indicator of a machine shall be so located as to allow an unobstructed view of the load-receiving element or the delivery outlet of the machine or, if owing to particular circumstances that is not feasible, a convenient means shall be provided for direct communication between an observer at the indicator and an observer at the load-receiving element or the delivery outlet.

145. to 148. [Repealed, SOR/98-115, s. 11]

149. A machine shall not be installed or used in conjunction with any supplementary means of registration unless that means of registration conforms to the specifications for registration set out in this Part and to the specifications established pursuant to subsection 13(1) and section 27.

SOR/2005-297, s. 17.


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