★Office Chair Classification and Code:
→first classification,light industrial products: classification code 3.
→second classification, furniture, classification code 305.
→third classification, office chair, classification code 305.5。
→office chair is divided 3 classes by adjusting way: I type, the angle of both chair seat and chair back rest can be adjusted. II type, only the angle of chair back rest can be adjusted. III type, the position and angle of chair back rest, chair seat, arm of chair all can not be adjusted.
→QB/T 2280-2016 Office Furniture-Office Work Chair.
→National furniture quality supervision and inspection center, National furniture and indoor environment quality supervision and inspection center
★Office chair inspection requirements: textile fabrics dry and color fastness, stability, seat impact.
→vertical downward static loading of chair arm, horizontal static load of chair arm, static load of chair base, reciprocating wear of chair casters.
→dropping, flame resistance, formaldehyde emission content,TVOC.
→safety including basic safety, sealing property, high and low temperature resistance, cycle life.
→STD-2000 2000N Chair Seat Tightness Detection Test Machine
→trailable force, displacement (stroke), positive pressure F(N), system air pressure P(Mpa), pressure hold (s), moving position, pressure F-pressure P curve, pressure F-S time curve, pressure P-S time curve.
→probe of loadcell can move downward, front back (left right).
→with many control mode: load set, load hold, air pressure set, constant pressure control, cyclic control and self-programming control, etc.
→max. Test force (positive pressure) 2000N
→max. System air pressure 2MPa
→relative error of load indication ≤±1%
→max. stroke of load: up-down movement ±100mm, left-right movement ±100mm
→load resolution 1/200000
→position resolution 0.01mm
→adjusting range of test speed 0.001~1000mm/min
→ZDW-50 Computer Control switch machine trailable force testing machine, QMZ-20 automobile door shaft torsion testing machine
→HYS-S200 Piston Ring Testing Machine, QWS-3 Vehicle Stabilizer Bar Side Force Testing Machine, JB-23 Protective Toe Safety Shoe Anti-impact Tester
→ZYS-1000 Seat Elevation Inspection Testing Machine
→Casters Testing Machine
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→HRJ Electronic Universal Testing Machine
→HRJ Torsion Testing Machine
→HRJ Spring Testing Machine
→HRJ High Speed Testing Machine,Low Speed Test System Machine
→HRJ Jack Verification System,Multi-functional Testing System
→HRJ Hydraulic Compression Testing Machine
→HRJ Steel strand Relaxation Testing Machine,Static Load Anchoring Test Machine,Tension Creep Rupture Strength Testing Machine
→HRJ Force Standard Machine
→HRJ Horizontal Tension Testing Machine
→HRJ Hydraulic Universal Testing Machine
→HRJ Wood-based Panel Testing Machine,Artificial Board Testing Machine
→HRJ Bending Testing Machine
→HRJ Dynamic Testing System/Fatigue Testing System
→HRJ Special Testing Machine
→GB15083 Strength requirement and test of automobile seats, their anchorages and any head restraints, applicable in the chair as well as its fix unit of Class M1 and Class N vehicles and the isolating device to prevent the movement of luggage Class M1 vehicles.
→GB14166-2013 The passenger seat belt, the restraint system, the child restraint system ISOFIX children's restraint system
→GB14167-2013 The car seat belt is installed with fixed point, ISOFIX fixed point system and upper belt fixed point
→GB27887-2011 The motor vehicle and child crew use the restraint system
→ISO6487:2002(Road vehicles-Measurement techniques in impact tests-Instrumentation)
→ISO17373:2005(Road vehicles-Sled test procedure for evaluating occupant head and neck interactions with seat/head Restraint designs in low-speed rear-end impact)