Standard No.:	QC/T 633-2022
English Name:	The seats of passenger vehicles
Chinese Name:	客车座椅
Professional Classification:	QC    Professional Standard - Automobile
Issued by:	MIIT
Issued on:	2022-04-08
Implemented on:	2022-10-1
Status:	valid
Superseding:	QC/T 633-2009 The seats of passenger vehicles
Language:	English
File Format:	PDF
Word Count:	7500 words
Price(USD):	225.0
Delivery:	via email in 1~3 business day

The seats of passenger vehicles 1 Scope This document specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of the seats of passenger vehicles. This document is applicable to the seats of M2 and M3 passenger vehicles. This document is not applicable to plastic seats of M2 and M3 Class A and Class I passenger vehicles and special student seats for school buses. 2 Normative references The following documents contain requirements which, through reference in this text, constitute provisions 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 11550 Strength requirement and test of automobile seats head restraints GB/T 13053-2008 Bus inner dimensions GB 13057 The strength of the seats and their anchorages of passenger vehicles GB 13094 The safety requirements for bus construction GB/T 13306 Plates GB 14166 Safety-belts, restraint systems, child restraint systems ISOFIX child restraint systems for occupants of power-driven vehicles GB 14167 Safety-belt anchorages, ISOFIX anchorages systems and ISOFIX top tether anchorages for vehicles GB 15083 Strength requirement and test method of automobile seats, their anchorages and any head restraints GB 18580 Indoor decorating and refurbishing materials - Limit of formaldehyde emission of wood-based panels and finishing products GB 18583 Indoor decorating and refurbishing materials - Limit of harmful substances of adhesives GB/T 24551 Safety belt reminder for motor vehicles GB/T 25750 Lockable gas spring technical specification GB/T 29120 Procedure for H-point and R-point determination GB/T 30512 Requirements for prohibited substances on automobiles GB/T 33276 Knitted fabrics and knitted composite fabrics for automotive interior GB/T 33389 Woven fabrics and woven composite fabrics for automotive interior GB 34660 Road vehicles - Requirements and test methods of electromagnetic compatibility GB 38262 Flammability of interior materials for buses HG/T 2006 Thermosetting powder coatings JB/T 5943 Construction machinery - General specifications for welding parts QB/T 2080 Flexible cellular polymeric materials-high-resilience polyurethane foam QB/T 2703 Automotive uphostery leather QB/T 4043 Polyvinyl chloride artificial leather for automotive QB/T 4194 Polyurethane synthetic leather used for vehicle QC/T 15 General test method for automobile plastic products QC/T 47 Automobile seat terminology 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 13053, GB 13094, GB 15083, GB/T 29120 and QC/T 47 as well as the following apply. 3.1 R point reference point of seat arrangement and design, whose position on the seat is measured by three-dimensional H point machine [GB/T 13053-2008, 3.4.12] 3.2 R' point vertical projection point of R point on the upper surface of the seat cushion [GB/T 13053-2008, 3.4.13] 3.3 G point intersection point of the vertical line tangent to the backrest surface and the upper surface of the seat cushion on the center plane of the seat; that of the extension line of the backrest surface and the upper surface of the seat cushion for semi-backrest seats [GB/T 13053-2008, 3.4.14] 3.4 height of seat cushion distance between the highest point of the upper surface of unsunk seat cushion in the center plane of the seat and the horizontal section of the floor at the footrest 4 Requirements 4.1 General requirements 4.1.1 The dimensions and specifications of seats shall meet those specified in Table 1. See Figure 1 for the schematic diagram of seat dimensions and specifications. The dimensions and specifications shall be measured with three-dimensional H point machine meeting the requirements of GB/T 29120, and the seat shall be placed at the design reference position specified by the manufacturer during the measurement.

Contents Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Requirements 5 Test methods 6 Inspection rules 7 Marking, packaging, transportation and storage