This standard specifies the terms and definitions, technical requirements and test methods for automobile seats, their anchorages and any head restraints.
It is applicable to:
a) seats, their anchorages and any head restraints of automobiles of Categories M1 and N;
b) seats, their anchorages and any head restraints of automobiles of Categories M2 and M3 not involved in GB 13057;
c) the design of the rear parts of seat-backs and design of devices intended to protect the occupants from the danger resulting from the displacement of luggage in a frontal collision, of vehicle of Category M1.
It does not apply to rearward-facing seats or to any head restraint fitted to these seats.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3730.1 Motor vehicles and trailers - Types - Terms and definitions
GB 11551-2014 The protection of the occupants in the event of a frontal collision for motor vehicle
GB 11552 The interior fittings of passenger car
GB 13057 Strength of the seats and their anchorages of passenger vehicles
GB/T 15089 Classification of power-driven vehicles and trailers
ISO 6487 Road vehicles - Measurement techniques in impact tests - Instrumentation
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3730.1 and GB/T 15089 and the following apply.
3.1
vehicle type
a category of motor vehicles which do not differ in the following essential respects:
a) the structure, shape, dimension, material and mass of the seats, although the seats may differ in covering material and color; differences not exceeding 5% in the mass of the approved type of seat shall be allowed;
b) the type and dimension of the adjustment, displacement and locking systems of seats and their seat-backs and parts;
