How many items are there in automobile safety and health inspection?

I. Tail gas detection \r\nMain items of emission (tail gas) detection and the detection methods implemented: \r\n 1. Volume fraction of carbon monoxide and hydrocarbons, excess air coefficient λ. \r\n2。 Exhaust smoke of free acceleration method for compression ignition engine vehicles: exhaust light absorption coefficient (200 1 manufactured vehicle) or filter paper smoke value (200 1 manufactured vehicle). \r\n3. Free acceleration method for low-speed truck exhaust: smoke value of filter paper. \ r \ nII。 Appearance inspection \ r \ nAppearance inspection is mainly divided into vehicle uniqueness identification, vehicle appearance inspection and chassis dynamic inspection \ r \ nVehicle uniqueness identification: 1, license plate number; \r\n2, vehicle type; \r\n3, brand/model; \r\n4, color; \r\n5。 Engine number; \r\n6。 Vehicle identification code (or vehicle factory number) and engraving features; \r\n7。 Main features and technical parameters. \ r \ Vehicle appearance inspection: 1, body appearance; \r\n2, lighting and electrical signal devices; \r\n3, engine compartment; \r\n4, cab (area); \r\n5。 Engine running state; \r\n6。 Inside the bus; \r\n7。 Chassis parts; \r\n8。 Wheels; \r\n9, others. \ r \ Dynamic inspection of chassis: 1, steering system; \r\n2, drive train. \r\n3. Brake system; \r\n4, meters and indicators. \ r \ nIII。 Wheel Weight Braking \ r \ nBrake (including wheel weight) inspection mainly detects the following data: \ r \ nWheel weight; Maximum braking force of left and right wheels; The maximum difference of braking force between left and right wheels in the whole process of braking force growth; Brake coordination time; Wheel blocking force; Parking braking force. \r\na Inspection process: \ r \ na) The vehicle to be inspected runs upright and centered, and each axle is parked on the wheel weight meter in turn, and the wheel static load (wheel weight and braking judgment) is measured according to the time specified in the instrument manual; \r\nb) The vehicle to be inspected runs straight in the middle, the wheels to be inspected are parked on the drum, and the transmission is put into neutral; \r\nc) Start the drum motor, start sampling after 2s and keep enough sampling time (5s), and measure the average value of sampling process as blocking force. Calculate the percentage of braking force of each wheel according to the provisions of Appendix D. 1; \r\nd) Within 5s ~ 8s prompted by the display screen, the inspector will step on the brake pedal to the bottom (pneumatic braking vehicle) or step on the brake pedal force specified in the braking performance test, measure the whole process value of the growth of the braking force of the left and right wheels and the maximum braking force of the left and right wheels, and test each axle in turn; For the parking brake shaft, operate the parking brake control device and measure the parking brake force value. Calculate the braking rate of each axle, the percentage of braking force difference between left and right wheels, the braking rate of the whole vehicle and the percentage of parking braking force according to the provisions of Appendix D. 1; \r\ne) During the brake inspection, if the inspected wheel is locked on the drum, but the braking rate does not meet the qualified requirements, F) or G) method should be adopted for inspection; \r\nf) Add enough additional mass or acting force equivalent to the additional mass on the vehicle (within the rated load range of the equipment, the additional mass or acting force should be used between the left and right wheels of the axle and not included in the axle load). In order to prevent the inspected vehicle from backing up on the roller reaction braking test bench, triangular pads can be placed behind the non-test wheels or the whole vehicle can be towed; \r\ng) Test the braking force with a flat brake test bench or test the braking distance according to the road test method specified in the standard or completely emit the average deceleration and braking coordination time; \r\nh) If the braking force difference between the left and right wheels is unqualified in the bench test, but there is no obvious deviation when the vehicle is braked at the middle point in the chassis dynamic test, it should be replaced by a flat braking test bench or a road test. \ r \ nsi. Vehicle speed detection \ r \ nThe vehicle speed detection item is mainly to detect whether the error indicated by speedometer is within the allowable error range of the standard, and it is only required for vehicles with the highest design speed exceeding 40km/h ... \r\na Inspection process: \ r \ na) Drive the vehicle upright, and stop the driving wheel on the speed measuring roller with the inspection platform as the center; \r\nb) Lower the elevator or loosen the locking mechanism of the drum, and add a stop at the front of the non-driving wheel if necessary (front-wheel-driven vehicles use the parking brake); \r\nc) When the speedometer indicates 40km/h, measure the actual speed, and the inspection is over; \r\nd) Lift the elevator or lock the roller to drive the vehicle out of the inspection platform. \ r \ nV。 Headlight detection \r\nMain detection items of headlights: \r\n 1, luminous intensity of headlight high beam \r\n2, irradiation position of headlight high beam (left and right deviation of beam center and up and down deviation) \r\n3, irradiation position of headlight low beam (inflection point of light-dark cutoff line) \ r \r\nb) Transmission \r\nc) Send an instruction to the headlamp automatic detector to start measurement, and the instrument will automatically search for the headlamp to be measured, and measure the luminous intensity of the high beam and the offset value of the irradiation position of the high beam; (Note: The deviation value of the high beam irradiation position of the headlamp is only checked for the headlamp whose high beam can be adjusted independently; Headlights with independently adjustable high beam refer to headlights that can adjust the irradiation angle of high beam manually or with special tools without affecting the irradiation angle of low beam. Generally speaking, the high beam irradiation angle of a headlamp with integrated high beam and low beam cannot be adjusted independently. ) \r\nd) Convert the detected headlamp into low beam, and the headlamp automatic detector will automatically detect the irradiation position offset value at the corner (or midpoint) of the low light and dark cutoff line; \r\ne) Complete the detection of all headlights of the vehicle according to the above steps c) and d); \r\nf) When the parallel headlamp (four-lamp headlamp) is inspected, the lamp adjacent to the inspected lamp shall be shielded. \ r \ nVI。 Slip detection \ r \ Slip detection is mainly used to detect the lateral slip of the steering wheel. \ r \ Slip detection process: drive in a straight line near the slip detection platform and center it, keep the steering wheel in the middle position, pass the slip detection platform smoothly at a speed not higher than 5km/h while driving, and read the maximum indication.