Document ID: chunk:federal_register_of_legislation:F2018L01513:body:0:p6
Version: federal_register_of_legislation:F2018L01513
Segment Type: other
Provision Reference: 
Character Range: 18405–21403

sample shall have a space of adequate dimensions for the approval mark; this space shall be indicated in the drawing.

4.3. All markings shall be clearly legible and indelible.

              5. Approval
5.1. If the two samples submitted for approval conform to the provisions of paragraph 6. below, approval for this type of audible warning device, audible warning system, multiple audible warning system shall be granted.

5.2. An approval number shall be assigned to each type approved. Its first two digits (at present 00 for the UN Regulation in its original form) shall indicate the series of amendments incorporating the most recent major technical amendments made to the UN Regulation at the time of issue of the approval. The same Contracting Party may not assign this number to another type of audible warning device, audible warning system, multiple audible warning system.

5.3. The same approval number may be assigned to types of audible warning device, audible warning system, multiple audible warning system differing only with respect to rated voltage, rated sound frequency or frequencies or rated operating pressure.

5.4.  Communication on approval or refusal or extension or withdrawal of approval or production definitely discontinued of a type of audible warning device, audible warning system, multiple audible warning system pursuant to this UN Regulation shall be communicated to the Parties to the Agreement applying this UN Regulation by means of a form conforming to the model in Annex 1A to the UN Regulation.

5.5. On every audible warning device, audible warning device, audible warning system, multiple audible warning system which conforms to a type approved under this Regulation, there shall be affixed conspicuously, in an easily accessible place indicated on the approval form, an international approval mark comprising:

5.5.1. A circle containing the letter "E" followed by the distinguishing number of the country granting approval[2];

5.5.2. An approval number;

5.5.3. An additional symbol in the form of a figure in Roman numerals, showing the class to which the audible warning device, audible warning system, multiple audible warning system belongs.

5.6. Annex 2, Section I, to this Regulation gives an example of the arrangement of the approval mark.

5.7.  The Type Approval Authority or its duly accredited technical service shall verify the arrangements of the marks for ensuring effective control of the conformity of production before type approval is granted.

              6. Specifications
6.1. General specifications

6.1.1. The audible warning device, audible warning system, multiple audible warning system shall emit a continuous and uniform sound; its acoustic spectrum shall not vary substantially during its operation.

 For audible warning devices, audible warning system, multiple audible warning system supplied with alternating current, this requirement shall apply only at constant generator speed, within the range specified in