Main testing items and standards for car seats

I. Test Items

1. Functional Durability Test Items:

• Seat ingress/egress durability
• Seat jounce durability
• Headrest adjustment lifespan test
• Seat frame assembly durability test
• Seat height adjuster durability
• Seat longitudinal adjustment (slide rail) durability
• Forward-folding seat lifespan
• Seat armrest durability
• Seatback adjustment durability
• Seat vibration durability
• Reclining/rear-folding seat lifespan
• Simulated human ingress/egress durability test

2. Functional Operability Test Items:

• Seat operating force under extreme temperatures
• Automotive seat track performance
• Headrest rearward linear loading
• Headrest movement
• Backrest frame assembly stiffness
• Backrest frame assembly clearance
• Seatback adjustment function test
• Seat assembly longitudinal adjustment function test
• Seat static stiffness test
• Seat armrest strength and stiffness test
• Seat operational performance test

3. Comfort Test Items:

• Dynamic comfort test
• Seat system modal identification
• Pressure distribution test
• Seat vibration and noise test

4. Dimensional Measurement Test Items:

• Headrest dimensional standards
• Automotive front seat assembly requirements
• Seat reference point and seatback angle
• Seat H-point measurement
• Seat R-point measurement

5. Seat Strength and Regulatory Compliance Test Items:

• Seatbelt anchor point test
• Seat system strength test
• Seatback and adjustment mechanism strength test
• Seatback energy absorption test
• Front seat luggage impact headrest energy absorption test
• Side airbag static deployment test

6. Seat Material, Environmental, and Chemical Tests:

• Material performance tests (shape, dimensions, appearance, color difference, gloss, density, combustion characteristics, water absorption, Vicat softening temperature, heat deflection temperature, tensile strength, bending strength, fogging performance)

7. Reliability and Environmental Durability Performance:

• Temperature resistance, water resistance, humidity resistance, chemical resistance, vibration resistance, impact resistance, fatigue resistance, scratch resistance, salt spray resistance, light resistance, and comprehensive aging resistance

8. Prohibited and Restricted Substances Test:

• ELV prohibited substances, flame retardants, phthalate plasticizers, polycyclic aromatic hydrocarbons, asbestos, SVHC
• Volatile Organic Compounds (VOCs): odor, total carbon volatiles, benzene, toluene, xylene, individual VOCs, aldehydes, ketones, in-vehicle air quality

Test Equipment:

1. Robotic test system
2. Semi-anechoic chamber + 5T electromagnetic vibration test system
3. Walk-in environmental chamber
4. Four-post integrated vibration test system
5. Pyro-detonation test system
6. 3D coordinate measuring machine, body pressure distribution mat, and SAE standard dummy
7. Seat jounce test rig
8. Seat multi-functional durability test rig
9. Seat tilt-and-fold test rig
10. Pneumatic integrated test rig
11. Seat height adjuster test rig
12. Environmental reliability test equipment
13. Seat material and chemical test equipment

II. Test Standards:

1. National and Automotive Industry Standards:

• GB 15083-2006: Strength requirements and test methods for automotive seats, seat anchorages, and head restraints
• GB 11551-2003: Occupant protection in frontal collisions for passenger vehicles
• GB 11550-2009: Strength requirements and test methods for automotive seat head restraints
• GB 24406-2009: Strength of seats and vehicle anchorages for special school buses for primary students
• GB 13057-2003: Strength of seats and vehicle anchorages for buses
• QC/T 740-2005: Passenger vehicle seat assembly
• QC/T 805-2008: Technical specifications for passenger vehicle seat slide rails
• QC/T 55-1993: Dynamic comfort test method for automotive seats
• QC/T 633-2009: Test method for bus seats
• QC/T 56-1993: Performance test method for automotive seat cushion materials

2. Domestic Enterprise Standards:

• Chery B11 Seat Assembly Specification: Technical requirements for Chery passenger car seat assemblies
• Q/SQR 04.180-2004: Front seatback frame assembly
• EQCT-201-2000: Fatigue test for adjustable-backrest seat assemblies
• EQCT-164-1999: Performance test method for automotive seat upholstery

3. European and American Industry Standards:

• SAE J826-95: Devices for defining and measuring vehicle seating accommodation
• ECE R25: Uniform provisions concerning the approval of head restraints
• STE 9646364399 (FR&CN): General standard for complete seats
• Seat SDS 5.0 FORD: Seat system specification
• BMW PR 4301-4_2000: Seat noise requirements
• GMW14364: Ingress/egress/jounce seat durability test

4. Japanese and Korean Industry Standards:

• Nissan Design Specification: Seat assembly (front/rear)
• 87000NDS00: Seat assembly technical requirements
• SES E 602-08_2005: Seat reliability test
• ES 88000-10: Vehicle seats
• ES 88001-10: Vehicle seat strength
• 8103ZSYJ_0030_A1102990: Dongfeng Honda seat specifications