GB 19195-2003 General technical requirements for popular (entertainment) go-karts

This standard specifies the technical requirements and inspection rules for popular (entertainment) karts and their components. This standard applies to the identification inspection, delivery inspection and arbitration inspection of karts produced and used in China and imported karts. GB 19195-2003 General Technical Requirements for Popular (Entertainment) Karts GB19195-2003 Standard download decompression password: www.bzxz.net

All technical contents of this standard are mandatory. Foreword
GB19195—2003
This standard is formulated based on the General Rules and Safety of Karts and Their Equipment in Part VI of the 2001 International Rules of Karting promulgated by CIK/FIA (International Automobile Federation/International Karting Committee). This standard is proposed by Tianjin Quality and Technical Supervision Bureau. This standard is under the jurisdiction of Tianjin Tanggu District Quality and Technical Supervision Bureau. The drafting units of this standard are: Tianjin Tanggu District Quality and Technical Supervision Bureau, Xiamen Chengshin Rubber Industry Company, Shenzhen Haoshengzhe Kart Co., Ltd., Tianjin Oushen Kart Co., Ltd., and the 5701 Factory of the Chinese People's Liberation Army. The main drafters of this standard are: Liu Yuzhuo, Liu Yingru, Jian Jianzheng, Gu Feng, Guo Qi. This standard is published for the first time.
1 Scope
General Technical Conditions for Popular (Entertainment) Karts GB19195—2003
This standard specifies the technical requirements and inspection rules for popular (entertainment) karts (hereinafter referred to as karts) and their components. This standard applies to the appraisal inspection, delivery inspection and arbitration inspection of karts produced and used in China and imported karts. 2 Normative References
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, the parties to the agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For all undated referenced documents, the latest versions shall apply to this standard. GB/T2828 Batch-by-batch inspection counting sampling procedures and sampling tables (applicable to continuous batch inspection) GB19196 Kart classification and registration
GB19197 Kart field construction specifications
HG/T2177 Tire appearance quality
JB3677 Tightening torque specifications for threaded fasteners for automobiles JB/T5943 General technical conditions for welded parts of engineering machinery 3 Technical requirements
3.1 Basic requirements
The design, manufacture and maintenance of karts must meet safety requirements. There should be no defects that endanger the personal safety of drivers and other personnel. Karts are only allowed to be used when they are in a safe state. 3.2 Conditions of use
Karts must be used on sites that meet the requirements of GB19197. 3.3 Structure of karts bzxZ.net
Karts consist of three parts: frame (including body, seat and other accessories), wheels and engine. The schematic diagram of the indoor kart structure is shown in Figure 1; the structure of the outdoor popular kart is consistent with that of the competition kart. 3.4 Performance
3.4.1 Height
The highest point of the kart shall not be more than 650mm from the ground (excluding the headrest and roll cage). 3.4.2 Overall length
The overall length shall not be more than 2100mm (excluding the deflector). 3.4.3 Width
The overall width shall not be more than 1400mm (excluding the side bumper). 3.4.4 Wheelbase
1010 mm～1 270 mm.
3.4.5 Wheelbase
Not less than two-thirds of the wheelbase.
3.4.6 Minimum curb weight
Should meet the requirements of GB19196.
GB 19195—2003
Engine
Side box
3.4.7 Braking distance
Accelerator pedal
Anti-roll cage
Shoulder belt part of seat belt
Figure 1 Structural diagram of indoor kart
Steering wheel
Front fender
Waist belt part of seat belt
On a standard road surface with a road adhesion coefficient greater than 0.7, the braking distance at a speed of 30km/h is less than 7.5m. 3.4.8 Starting performance
For electric start karts, the starting time shall not exceed 5s. For recoil start karts, the number of starts shall not exceed three times. 3.5 Occupant protection
3.5.1 Occupant protection for indoor go-karts
Brake pedal
Bumper
Place a hybrid III or hybrid II 50th percentile male dummy in the indoor go-kart. When the car collides head-on with a fixed barrier at a speed of 35±km/h, it shall meet the following requirements: a) The dummy's head injury index (HIC) shall not exceed 1000; b) When the action time exceeds 3ms, the composite injury index at the center of mass of the dummy's chest shall not exceed 1000. The speed should be no more than 60g, and the extrusion deformation should be no more than 75mm;
The femoral pressure should be no more than 10kN;
The dummy can be taken out intact;
The fuel system is not allowed to leak during the collision, and the leakage after the collision is less than 30g/min; The seat belt is intact, and the seat belt buckle can be opened normally; f)
The frame is not allowed to break, and there should be no rigid parts intrusion into the driving compartment; g)
h) The seat and the seat fixing point are intact.
3.5.2 Occupant protection of outdoor popular karts After the outdoor popular kart collides head-on with a fixed barrier at a speed of 35km/h (or undergoes a pendulum test equivalent to the collision test), it should meet the following requirements:
The driving compartment is not allowed to be significantly deformed;
b) It should not affect the smooth entry and exit of the hybrid II male dummy; c) The frame should not break to cause the risk of occupant injury. 3.6 Noise
GB 19195—2003
The maximum noise value of a kart should not exceed 75dB. If the kart venue has other requirements for noise indicators, the requirements of the national environmental protection department should be followed.
3.7 Frame
3.7.1 The main frame material should be made of carbon structural steel or alloy structural steel. 3.7.2 The diameter of the main pipe of the frame should not be less than 30mm, and the wall thickness should not be less than 2mm (or equivalent profile). 3.7.3 The frame material should meet the use requirements, and the tensile strength of the frame material should not be less than 350MPa. 3.7.4 The fatigue life of the simulated frame should not be less than 10×10° times, and the frame should not have cracks or permanent deformation after the fatigue life test.
3.7.5 Elastic or hinged suspension is not allowed between the frame and the axle. 6 The quality of kart welds must comply with the provisions of JB/T5943. 3.7.6
3.7.7 Slag inclusions, cracks and pores are not allowed in the rear axle material. 3.7.8 The diameter of the rear axle shall not be less than 30mm, and the wall thickness shall not be less than 4.9mm. There shall be no more than three sets of bearings installed on the rear axle. 3.7.9 Worn and damaged parts shall not be repaired and reused, and the replaced materials shall not be reused. 3.7.10 The tightening torque of parts shall comply with the provisions of JB3677. The parts on the frame shall not be wrongly installed or missed, and shall be firmly fixed. No parts shall protrude from the rear bumper. Except for the brake disc and sprocket, the other parts shall not be lower than the frame bottom plate. 3.7. 11
3.7.12 The edge of the bottom plate shall not have hidden dangers of causing harm to the occupants. When drilling holes on the bottom plate, the diameter of the holes shall not be greater than 10mm, and the margins of adjacent holes shall not be less than four times the hole diameter. The floor is not allowed to exceed the front bumper. 3.8 Engine
3.8.1 The engine should be suitable for the working conditions of the kart. The engine configuration should meet the requirements of GB19196. 3.8.2 The two-stroke engine should be equipped with an exhaust muffler. The exhaust device should be located behind the passengers, its height should not exceed 450mm, and it should be facing the ground at a certain angle to the right of the travel direction. The exhaust device should not have sharp edges. 3.8.3 The wiring of the electrical system is reasonable, the connection of each contact is reliable, and there are insulation measures. 3.9 Braking system
3.9.1 The braking device can act on at least two rear wheels at the same time. A butterfly disc brake device with good heat dissipation should be used. 3.9.2 The brake control device, if it is operated by a cable, the diameter of the brake cable should not be less than 1.8mm. There should be a spare cable between the pedal and the brake, so that the brake device can still work normally when the normal brake cable fails. 3.9.3 The brake pedal and all parts acting on the brake should be made of metal materials. 3.9.4 The brakes must have a wear compensation device, and the brakes are not allowed to fail. 3.9.5 The brake pedal should have a return spring. The brake pedal should not extend out of the front bumper. 3.10 Steering system
3.10.1 The steering system components should be fixed with self-locking nuts or adhesive bolt-type fasteners. 3.10.2 The direction should be controlled by a circular steering wheel. The steering wheel should rotate flexibly and there should be no obstruction during the rotation process. The bearings of the steering mechanism should be made of all metal. The steering transmission ratio is 1:1. 3.10.3 The vertical distance between the highest point of the steering wheel and the upper plane of the bottom of the frame is (525±29) mm. The steering column of the steering wheel is a metal material tube with a diameter of not less than 20 mm and a wall thickness of not less than 2 mm. 3.10.4 If a metal steering wheel is used, its rim part should be covered with elastic materials such as rubber. 3.10.5 The use of cable-type or chain-type flexible steering mechanisms is not allowed. 3.11 Running system
3.11.1 The maximum diameter of the front tire is 280mm, and the maximum diameter of the rear tire is 300mm. The maximum width of the front tire is 135mm, and the maximum width of the rear tire is 215mm.
GB19195—2003
3.11.2 The rims used are all 126mm (5in). The diameter of the outer edge of the rim shall not be less than 136.2mm, the diameter of the rim and the tire joint is (126±1.2)mm, the joint width of the rim and the tire shall not be less than 10mm, and the transition radius of the rim frame and the tire joint surface shall not be less than 8mm. 3.11.3 The front wheel shall be equipped with a bearing seat, the width of which shall not be less than 10mm. 3.11.4 There shall be no less than three bolts reinforcing the outer edge of the rear wheel, and the tightening force shall be 1.8Nm~2.3Nm. 3.11.5 To ensure that the tire and the rim are tightly connected, the tire should be inflated to 400 kPa (4 bar) after the tire and the rim are assembled, and then released to the specified working pressure.
3.11.6 The tire burst pressure (liquid) shall not be less than 800 kPa (8 bar). 3.11.7 It is not allowed to mix dry tires with wet tires, it is not allowed to mix soft tires with hard tires, and it is not allowed to mix left and right tires of different brands.
3.11.8 It is not allowed to humidify or cool the tires, and it is not allowed to use chemicals to treat the tires. 3.11.9 The appearance quality of the tire shall comply with the relevant provisions of HG/T2177. 3.11.10 The tensile strength of the rear wheel fixing bolts shall not be less than 800 MPa. 3.12 The transmission system
should be rear wheel transmission. It is not allowed to use differentials or chain lubrication devices. 3.13 Fuel system
3.13.1 No part other than the kart tank is allowed to be used as a fuel tank. 3.13.2 The capacity of the independent fuel tank shall not be less than 8L. The fuel tank shall supply fuel to the engine under standard atmospheric pressure. Its outlet diameter shall not be greater than 5mm. It is recommended to use a quick-loading and unloading fuel tank.
3.13.3 The fuel tank and fuel pipe shall be firmly fixed. The fuel tank is not allowed to leak. If a plastic fuel tank is used, the plastic fuel tank shall be made of flame-retardant materials and anti-static treatment shall be applied.
3.13.4 The fuel pipe shall be properly protected. When the fuel tank is installed on the side of the frame, a bumper shall be installed. The bumper diameter shall not be less than 15mm and the bumper wall thickness shall not be less than 1.5mm.
3.13.5 The accelerator pedal shall have a return spring and a limit screw. The accelerator pedal and the carburetor are connected in the form of a hinge. The accelerator pedal should not extend out of the front bumper.
3.14 Non-metallic materials
3.14.1 Seats, air deflectors, front fenders, and side boxes shall be made of non-metallic materials. 3.14.2 Carbon fiber and polyaramid (Carveral) fiber products are not allowed to be used as non-metallic materials. Glass fiber should be matte and woven. Plastic should not be easily broken. 3.14.3 Non-metallic surfaces shall not have flash, cracks, or deformation that affects performance. 3.15 Seats
3.15.1 Indoor karts shall be equipped with headrests. Soft seats are allowed. 3.15.2 The acute angle between the seat back and the horizontal plane shall not exceed 62. The vertical projection length of the seat surface is 300mm ± 5mm, and the angle between the seat surface and the horizontal plane is 8° to 28°. The vertical projection length of the seat back is not less than 465mm (excluding the headrest). When using soft seats, the increase in this distance shall not be greater than the distance from the bottom of the seat to the seat surface. 3.15.3 The seat surface of a hard seat should be concave. 3.15.4 The horizontal distance from the lower end of the steering wheel to the seat back should not be less than 480mm. 3.15.5 The lowest point of the seat should not be lower than the lower plane of the frame. The seat should be firmly fixed. 3.16 Vehicle Body
3.16.1 Air deflector
3.16.1.1 The air deflector should be installed at the bottom of the front bumper and the front side of the frame. The air deflector should be installed on the front bumper through two mounting points. No reinforcement parts are allowed. The air deflector should be installed using the quick installation method and should not hinder the normal movement of the accelerator and brake pedals. 3.16.1.2 The distance between the front end of the air deflector and the center of the front wheel axle should not exceed 600mm. 3.16.1.3 The air deflector should be symmetrical with the center line of the frame as the axis. The distance from the inner plane of the air deflector to the initial position of the pedal should not be less than 4
3.16.1.4 The width of the air deflector is 860mm±43mm. 3.16.2 Front fender
GB 19195—2003
The distance between the upper end of the front fender and the lower plane of the steering wheel shall not be less than 50mm. The width of the front fender is 250mm±12.5mm. 3.16.3 Side box
3.16.3.1 The installation position of the side box is appropriate and should not affect the normal operation of the occupants. 3.16.3.2 The surface of the side box should be smooth and complete. Except for the holes required for fixing, there should be no other holes on the side box board. The curve radius of the side box edge is 5mm~20mm.
3.16.3.3 The width of the front end of the side box is 120mm±6.5mm, and the width of the rear end of the side box is 180mm±9mm. 3.16.3.4 The lower plane of the side box should be no less than 25mm and no more than 40mm above the ground. The clearance between the side box and the rear tire is 40mm±20mm.
3.16.3.5 The side box should not exceed the horizontal plane formed by the top of the front wheel and the rear wheel. The distance that the side box extends outward from the vertical plane outside the wheel should not be more than 20mm. The maximum distance that the side box part extends inward from the vertical plane outside the wheel is 40mm. 3.17 Safety protection device
3.17.1 Safety belt
3.17.1.1 Indoor popular karts should be equipped with a five-point full-back safety belt. The width of the safety belt should be no less than 46mm. 3.17.1.2 Place the hybrid II male dummy in the indoor go-kart and fasten the safety belt. At this time, the waist belt is about 45 degrees to the horizontal direction; the waist belt should pass through the thigh root and the pelvic iliac spine point; the distance between the inner edges of the two shoulder belts at the shoulder clavicle should not be greater than 156mm. 3.17.1.3 The waist belt tensile strength of the safety belt should not be less than 26.7kN, and the elongation should not be greater than 20%; the shoulder belt tensile strength should not be less than 17.7kN, and the elongation should not be greater than 40%.
3.17.1.4 Apply a load of 13500N±200N in a direction parallel to the longitudinal center plane of the go-kart and at an angle of 10°±5° to the horizontal line for 0.2S. The safety belt should not fall off from the fixed point. 3.17.2 Roll cage
The diameter of the steel pipe for making the roll cage should not be less than 30mm, and the wall thickness of the steel pipe should not be less than 2mm. The distance between the plane formed by the line connecting the roll cage and the upper edge of the steering wheel and the top of the head of the mixed type II male dummy placed on the kart seat shall not be less than 30mm. 3.17.3 Bumper
3.17.3.1 The bumper shall be made of carbon structural steel or alloy structural steel. 3.17.3.2 Indoor karts shall be equipped with closed bumpers, which shall be made of pipes or plates. The diameter of the pipe shall not be less than 20mm; the wall thickness shall not be less than 2mm; the thickness of the plate shall not be less than 6mm. The pipe bumper shall be a double-layer structure, and the height of the pipe bumper shall not be less than 90mm; the height of the plate bumper shall not be less than 60mm. 3.17.3.3 The bumper joints of indoor karts shall be connected by round steel connectors and bolts. The total length of the connector shall not be less than 80mm, and there shall be a convex ring of not less than 3mm in the middle to ensure left-right symmetry. The diameter of the fixing bolt shall not be less than 8mm. For the plate, it should be clamped by two steel plates of the same thickness and height as the bumper plate and not less than 100mm in length, and connected by bolt fixing. There should be no less than four fixing bolts at one joint, and the bolt diameter should not be less than 6mm. 3.17.3.4 Buffer rubber pads should be installed at the connection between the bumper and the main frame. The thickness of the rubber pads in the front and rear directions of the car should not be less than 55mm. 3.17.3.5 On the outside of the front and rear bumpers of indoor karts, D-shaped hollow anti-collision rubber pads should be installed, with a height of not less than 60mm and a thickness of not less than 50mm.
3.17.3.6 The height of the bottom of the bumper from the ground should not be less than 200mm. The front bumper of outdoor popular karts should not exceed the connecting line of the highest points of the outer edges of the front and rear wheel rims. The height of the side bumper from the ground should not exceed the height of the rear axle. 3.17.3.7 The diameter of the upper horizontal bar of the rear bumper of an outdoor popular kart shall not be less than 19mm; the diameter of the lower part of the rear bumper, the front bumper and the side bumper shall not be less than 15mm, and the bumper wall thickness shall not be less than 2mm (or equivalent profile). 3.17.3.8 The bottom of the upper horizontal bar of the rear bumper of an outdoor popular kart shall be at least 15mm higher than the top of the front bumper. The rear bumper is a 5
GB 19195—2003
upper end tilted backwards structure, perpendicular to the direction of travel of the kart. The rear end of the rear bumper shall be at least 60mm longer than the front end of the front bumper. 3.17.4 The protective device can effectively cover the rear axle, engine chain and chain transmission part. 3.18 Marking
3.18.1 Each kart should have a logo, and the logo plate should be fixed on a conspicuous part of the rear crossbeam of the frame. 3.18.2 The content of the kart logo plate includes: kart level (such as PC/O level kart), engine model and power, frame number, implementation standard, production date, factory name, and factory address. 3.18.3 The warning instructions (or warning signs) for the use of karts are marked on conspicuous parts of the karts and detailed in the instruction manual.
4 Inspection rules
4.1 Inspection classification
Kart inspection is divided into identification inspection and quality consistency inspection. Identification inspection is used to comprehensively evaluate whether the quality of karts meets the requirements of this standard. Quality consistency inspection is used to assess whether the karts have reached the quality level confirmed in the identification inspection. 4.2 Sampling
When sampling in the finished product warehouse of the production enterprise, the minimum number of samples to be drawn is 2, and the minimum inspection batch should not be less than 5 times the minimum number of samples. Sampling in the kart user unit, the number of inspection batches is not limited. When sampling for supervision inspection, there is no limit on the sampling location and the number of inspection batches. Kart samples should be randomly sampled from the inspection batch.
4.3 Identification inspection
4.3.1 Situations requiring identification inspection
Identification inspection shall be carried out in any of the following situations: a) Identification inspection shall be carried out before the kart of this specification is put on the market; b)
In order to obtain market access and product safety certification; when the kart of this model is registered;
When the occupants of this model of kart are injured or disabled during use, and the reason is unknown; when the frame material inspection results are inconsistent with the inspection results of the identification inspection; e)
When the user or quality supervision agency makes a request; f)
When there are major changes in production conditions, processes, materials, and main components, or when production is resumed after suspension. g)
4.3.2 Identification inspection items
All the contents specified in the technical requirements of this standard are identification inspection items. 4.3.3 Judgment rules
4.3.3.1 Average sample size and critical test number of Class A non-conformitiesa) Occupant protection;
b) Protective device;
Tensile strength of frame material;
d) Tensile strength of rear wheel fixing bolts;
Tire bursting pressure;
f) Frame fatigue life;
g) Rear axle material;
Seat belt;
Anti-roll cage does not meet the technical requirements of this standard and constitutes a fatal defect. According to GB/T2828, normal inspection and one sampling plan: i)
The qualified quality level (AQL) is 1.5, and the special inspection level is S-1. The sample size and inspection critical constant of the inspection batch are shown in Table 1. 6
Batch, N
51~150
151~280
281~500
501~10000
Table 1 Sample size and inspection critical constant of fatal defect items Sample size, n
4.3.3.2 Average sample size and inspection critical constant of Class B unqualified a)
Performance;
Noise;
Weld quality;
Braking system;
Steering system;
Qualified judgment number, Aci
GB19195—2003
Unqualified judgment number, Rel
The seat does not meet the requirements of the technical requirements of this standard, which constitutes a serious defect. According to GB/T2828, the normal inspection sampling plan is carried out once, and its qualified quality level (AQL) is 2.5, and the general inspection level is 1. The sample size and inspection critical constant of the inspection batch are shown in Table 2. Table 2 Sample size and inspection critical constant of the inspection batch for serious defects Batch, N2
26～90
91～150
151280
281~~500
Sample size, n2
4.3.3.3 Average sample size and inspection critical constant of Class C unqualified qualified judgment number, Ac2
Unqualified judgment number, Re2
Except for the items determined in Articles 4.3.3.1 and 4.3.3.2 in the technical requirements, those that do not meet the technical requirements are minor defects. According to GB/T2828, the normal inspection sampling plan has an AQL of 6.5 and a general inspection level II. The sample size and critical number of the inspection batch shall comply with the provisions of Table 3. Table 3 Sample size and critical number of inspection for light defect items Batch, Ns
91~150
4.3.3.4 Determination of inspection batch
Sample size, n3
Qualified determination number, Ac3
Unqualified determination number, Re3
The number of unqualified types A, B, and C in the sample is all less than or equal to the corresponding qualified determination number Ac, and the inspection batch is determined to be qualified. If the number of unqualified types in the sample is greater than or equal to the corresponding unqualified determination number Re, the inspection batch is determined to be unqualified. 4.3.3.5 Disposal of inspection batches
GB19195-2003
Unqualified inspection batches should be inspected one by one, and unqualified karts can only be shipped and used after they are repaired and qualified. Unqualified karts are not allowed to leave the factory or be sold.
4.4 Quality consistency inspection
4.4.1 Situations applicable to quality consistency inspection Every kart must undergo quality consistency inspection. 4.4.2 Quality consistency inspection items From the technical requirements
Except for the fatal defect items determined in Article 4.3.3.1, the rest are quality consistency inspection items. The annual quality inspection items of karts include all quality consistency inspection items, protection devices and rear axle material inspection. 4.4.3 Judgment rules
Follow the provisions of 4.3.3.2, 4.3.3.3, 4.3.3.4 and 4.3.3.5. 8Average sample size and inspection critical constant of Class 2B non-conformity a)
Performance;
Noise;
Weld quality;
Braking system;
Steering system;
Qualified judgment number, Aci
GB19195—2003
Unqualified judgment number, Rel
The seat does not meet the provisions of the technical requirements of this standard and constitutes a serious defect. According to the normal inspection sampling plan of GB/T2828, the qualified quality level (AQL) is 2.5 and the general inspection level is 1. The sample size and inspection critical constant of the inspection batch are shown in Table 2. Table 2 Sampling size and critical inspection constant for heavy defective items Batch, N2
26～90
91～150
151280
281~~500
Sample size, n2
4.3.3.3 Average sample size and critical inspection constant for Class C nonconformity Qualified determination number, Ac2
Number of nonconformity determination, Re2
Except for the items determined in Articles 4.3.3.1 and 4.3.3.2 in the technical requirements, those that do not meet the technical requirements are minor defects. According to the normal inspection of the sampling plan in GB/T2828, the qualified quality level (AQL) is 6.5, and the general inspection level is II. The sampling size and critical inspection constant for the inspection batch shall comply with the provisions of Table 3. Table 3 Sample size of light defect items and critical inspection batch, Ns
91~150
4.3.3.4 Inspection batch determination
Sample size, n3
Qualified determination number, Ac3
Unqualified determination number, Re3
If the number of unqualified items of Class A, Class B, and Class C in the sample is less than or equal to the corresponding qualified determination number Ac, the inspection batch is determined to be qualified. If the number of unqualified items in one class in the sample is greater than or equal to the corresponding unqualified determination number Re, the inspection batch is determined to be unqualified. 4.3.3.5 Disposal of inspection batch
GB19195-2003
Unqualified inspection batches should be checked one by one. Unqualified karts can only be shipped and used after they are repaired and qualified. Unqualified karts are not allowed to ship out of the factory or be sold.
4.4 Quality consistency inspection
4.4.1 Applicable situations for quality consistency inspection Every kart shall be subject to quality consistency inspection. 4.4.2 Quality consistency inspection items Except for the fatal defect items identified in Article 4.3.3.1 of the technical requirements, all other items are quality consistency inspection items. The annual quality inspection items of karts include all quality consistency inspection items, protection device and rear axle material inspection. 4.4.3 Judgment rules
Follow the provisions of 4.3.3.2, 4.3.3.3, 4.3.3.4 and 4.3.3.5. 8Average sample size and inspection critical constant of Class 2B non-conformity a)
Performance;
Noise;
Weld quality;
Braking system;
Steering system;
Qualified judgment number, Aci
GB19195—2003
Unqualified judgment number, Rel
The seat does not meet the provisions of the technical requirements of this standard and constitutes a serious defect. According to the normal inspection sampling plan of GB/T2828, the qualified quality level (AQL) is 2.5 and the general inspection level is 1. The sample size and inspection critical constant of the inspection batch are shown in Table 2. Table 2 Sampling size and critical inspection constant for heavy defective items Batch, N2
26～90
91～150
151280
281~~500
Sample size, n2
4.3.3.3 Average sample size and critical inspection constant for Class C nonconformity Qualified determination number, Ac2
Number of nonconformity determination, Re2
Except for the items determined in Articles 4.3.3.1 and 4.3.3.2 in the technical requirements, those that do not meet the technical requirements are minor defects. According to the normal inspection of the sampling plan in GB/T2828, the qualified quality level (AQL) is 6.5, and the general inspection level is II. The sampling size and critical inspection constant for the inspection batch shall comply with the provisions of Table 3. Table 3 Sample size of light defect items and critical inspection batch, Ns
91~150
4.3.3.4 Inspection batch determination
Sample size, n3
Qualified determination number, Ac3
Unqualified determination number, Re3
If the number of unqualified items of Class A, Class B, and Class C in the sample is less than or equal to the corresponding qualified determination number Ac, the inspection batch is determined to be qualified. If the number of unqualified items in one class in the sample is greater than or equal to the corresponding unqualified determination number Re, the inspection batch is determined to be unqualified. 4.3.3.5 Disposal of inspection batch
GB19195-2003
Unqualified inspection batches should be checked one by one. Unqualified karts can only be shipped and used after they are repaired and qualified. Unqualified karts are not allowed to ship out of the factory or be sold.
4.4 Quality consistency inspection
4.4.1 Applicable situations for quality consistency inspection Every kart shall be subject to quality consistency inspection. 4.4.2 Quality consistency inspection items Except for the fatal defect items identified in Article 4.3.3.1 of the technical requirements, all other items are quality consistency inspection items. The annual quality inspection items of karts include all quality consistency inspection items, protection device and rear axle material inspection. 4.4.3 Judgment rules
Follow the provisions of 4.3.3.2, 4.3.3.3, 4.3.3.4 and 4.3.3.5. 8
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