This standard specifies the requirements and test methods for the performance of flame retardant for the decorating materials for multiple units.This standard applies to decorating materials for multiple units at or above the operating speed of 200 km/h.

This standard stipulated the catalogue and coding， defect description， causes of defects，means of detection and methods should be taken of various rail defects.This standard applies to the statistics of rail defects， Cause of defect and defect information treatment.This standard doesn't apply to the following defects：a）The rail parts made from cutting and forging rails，such as switch rails（point rails，wing rails） ，guardrail，expansion joint rails，etc.;b）Driving accidents caused by the non-rail defects or rails caused by the disaster;c）The few special rails made from the special experiment materials or with special cross section out of this standard.

This standard specifies the test facility and environment of locomotive car body strength test，test details，measuring point arrangement，test equipment and instruments，test methods as well as stress calculation，deflection measurement，evaluation of static strength and stiffness，test report and so on.This standard applies to test and evaluation of static strength and stiffness of general purpose locomotive car body used for standard gauge railway.For locomotives of other purposes，this standard may be followed.

This part specifies the performance indexes，testing methods，system service，function inspection，and inter-system test related to railway dispatch communication system，for both individual equipment and the whole system.This part is applicable to the manufacture，construction and acceptance test of railway dispatch communication equipment.

This standard specifies the type，dimension，allowable tolerances，technical requirements，testing method，inspection rules， mark， quality certificate and warranty，etc for rails.This standard is applicable to 60 kg/m hot-rolled rails for 200 km/h and above high speed railways and can be referred to by rails for railways running between 160 km/h and 200 km/h for application.

The standard specifies the inspection and testing rules of new-built passenger cars after completion of construction，as well as inspection item，method and determination of result included in each inspection.The standard applies to the seating car，berth car，luggage car，post car，dining car，generator car and combined car with full-metal car body with a design speed of no more than 200 km/h used on standard gauge railway. For special-use trains and non-standard gauge passenger cars with full-metal car body business car，maintenance car and test car，such as business car，maintenance car and test car，could implement the standard as reference.

This interim provision is prepared to standardize the engineering design of natural disaster and foreign object intrusion monitoring system for railway （hereinafter abbreviated as disaster monitoring system or DMS for short）.This interim provision is applicable to DMS engineering design for new railway lines or reconstructed ones.

This code is developed to enhance the risk management of railway construction projects，improve the technical level of the risk management and unify the risk management technical requirements.This code is applicable to the risk management of new railway construction projects.

This standard specifies the test methods for electric locomotives on completion of construction and before entry into service.This standard applies to electric locomotives with single-phase AC 25 kV，50 Hz power supply on trunk lines with gauge of 1435 mm （hereinafter referred to as locomotives） and can also be referred to for other similar locomotives not specified in this standard.

This standard specifies terms and definitions，product categories，materials，technical requirements，inspection rules，test methods，inspection and acceptance， packaging，marking， storage，transportation and etc.This standard applies to contact wires for overhead contact system of electrified railways.This standard can also be referenced by contact wires for overhead contact line of urban transit.