1 Scope
This standard specifies the technical requirements, test methods and inspection rules of warning triangles for motor vehicle (hereinafter referred to as warning triangles).
This standard applies to certain warning devices intended to be on board vehicles and to be placed on the carriageway in order to signal, by day and at night, the presence of a halted vehicle.
2 Normative references
The following standards contain provision which, through reference in this text, constitute provisions of this standard. Upon publication of this standard, all the editions cited are valid. All standards are subject to revision, and all parties using this standard are encouraged to investigate the possibility of applying the latest editions of the following standards.
GB/T 3978-1994 Standard illuminants and illuminating-viewing conditions
ISO 105-1978 Textiles - Tests for colour fastness
3 Definitions
For the purposes of this standard, the following definitions apply.
3.1 warning triangle
device capable of signaling, by day and at night, the presence of a halted vehicle and in the form of an equilateral triangle
3.2 type of warning triangle
warning triangles which do not differ in such essential respects as:
——the trade name or mark;
——the optical characteristics;
——the distinctive geometrical and mechanical features.
3.3 retro reflecting device
Foreword i
1 Scope
2 Normative references
3 Definitions
4 Technical requirements
5 Test methods
6 Inspection rules
Annex A (Normative) Shape and dimensions of the warning triangles
Annex B (Normative) Test device for clearance to ground
Annex C (Normative) Determination of the roughness of the road surface by “sandy beach” method
Annex D (Normative) Sequence table of type tests of warning triangle
