The Measuring Instruments (Capacity Serving Measures) Regulations 2006

Regulations 2(1) and 14(1)

SCHEDULE 1 ESSENTIAL REQUIREMENTS

1.  The essential requirements are the relevant requirements relating to capacity serving measures contained in Annex I and MI-008, set out in this Schedule.

Definitions

2.  In this Schedule—

“influence quantity” means the quantity that is not the measurand but that affects the result of measurement;

“measurand” means the particular quantity subject to measurement; and

“rated operating conditions” means the values for the measurand and influence quantities making up the normal working conditions of a capacity serving measure.

Allowable Errors

3.—(1) Under rated operating conditions, the error of measurement shall not exceed the maximum permissible error (MPE) value set out in paragraph 12.

(2) Unless stated otherwise, MPE is expressed as a bilateral value of the deviation from the true measurement value.

Reproducibility

4.  The application of the same measurand in a different location or by a different user, all other conditions being the same, shall result in the close agreement of successive measurements. The difference between the measurement results shall be small when compared with the MPE.

Repeatability

5.  The application of the same measurand under the same conditions of measurement shall result in the close agreement of successive measurements. The difference between the measurement results shall be small when compared with the MPE.

Durability

6.  A capacity serving measure shall be designed to maintain an adequate stability of its metrological characteristics over a period of time estimated by the manufacturer, provided that it is properly maintained and used according to the manufacturer’s instruction when in the environmental conditions for which it is intended.

Reliability

7.  A capacity serving measure shall be designed to reduce as far as possible the effect of a defect that would lead to an inaccurate measurement result, unless the presence of such a defect is obvious.

Suitability

8.—(1) A capacity serving measure shall have no feature likely to facilitate fraudulent use whereas possibilities for unintentional misuse shall be minimal.

(2) A capacity serving measure shall be robust and its materials of construction shall be suitable for the conditions in which it is intended to be used.

Information to be borne by and to accompany the capacity serving measure

9.—(1) A capacity serving measure shall bear the following inscriptions:

(a) manufacturer’s mark or name;

(b) information in respect of its accuracy;

(c) measuring capacity;

plus, when applicable:

(d) identity marking;

(e) number of the EC-type examination certificate;

(2) The units of measurement used and their symbols shall be in accordance with the provisions of Community legislation on units of measurement and their symbols.

(3) All marks and inscriptions required under any requirement shall be clear, non-erasable, unambiguous and non-transferable.

Conformity evaluation

10.  A capacity serving measure shall be designed so as to allow ready evaluation of its conformity with the appropriate requirements of these Regulations.

Reference Conditions

11.—(1) Temperature: the reference temperature for measurement of capacity is 20 °C.

(2) Position for correct indication: free standing on a level surface.

MPE

12.  MPE

Table

	Line	Brim
Transfer Measure
< 100 ml	± 2 ml	- 0 + 4 ml
≤ 100 ml	± 3 %	- 0 + 6 %
Serving measure
< 200 ml	± 5 %	- 0 + 10 %
≤ 200 ml	± 5 ml + 2.5%	- 0 + 10 ml + 5 %

Materials

13.  A capacity serving measure shall be made of material which is sufficiently rigid and dimensionally stable to maintain capacity within the MPE.

Shape

14.—(1) A transfer measure shall be designed so that a change of contents equal to the MPE causes a change in level of at least 2 mm at the brim or filling mark.

(2) A transfer measure shall be designed so that the complete discharge of the liquid being measured will not be impeded.

Marking

15.—(1) The nominal capacity declared shall be clearly and indelibly marked on the capacity serving measure.

(2) A capacity serving measure may also be marked with up to three clearly distinguishable capacities, none of which shall lead to confusion one to the other.

(3) All filling marks shall be sufficiently clear and durable to ensure that MPEs are not exceeded in use.