Standard QCR699 is applicable to the inspection and manufacturing of the flame retardancy of non-metallic materials used in railway passenger cars (including power concentrated multiple unit trailers and control cars). It is not distinguished by driving speed、 as long as it is a passenger car、 such as a green car The sample classification concept of QCR699 refers to the standard EN45545-2. The classification principles for flame retardancy of materials are as follows: a) intrinsic characteristics of materials; b) The location of use of materials or components; c) The shape and layout of materials; d) The exposed area and relative mass of the material

However、 the testing method is based on empirical techniques、 emphasizing whether the sample can be ignited or the difficulty of ignition.

. Also、 the initial smoke production during sample combustion should be reduced、 and attention should be paid to the critical 4-minute initial state of the fire. Unlike according to European standards、 based on complex thermal radiation、 fire spread、 and other state parameters after a fire occurs. The 45 degree method for ignitability refers to the Japanese standard and also continues the testing method of TBT3138. The smoke toxicity of materials has a shadow of European standards. For rubber and trunking materials、 the tube furnace method may be used、 and the FTIR method of smoke boxes may also be added in the future to improve testing efficiency

Q/CR 699-2019 Technical Conditions for Flame retardancy of Non metallic Materials for Railway Passenger Cars

China Railway Group has decided to adjust the flame retardancy technical conditions from TB/T3138-2018 "Technical Requirements for Flame retardancy of Materials for Locomotives and Rolling Stock" to Q/CR 699-2019 "Technical Conditions for Flame retardancy of Non metallic Materials for Railway Passenger Cars". After comparative analysis、 the QCR699 standard has proposed new requirements for materials in terms of flame retardancy、 low smoke、 non-toxic (low toxicity)、 and halogen-free properties

Q/CR 699-2019 Technical Specification for Flame Retardant of Non metallic Materials for Railway Vehicles - Standard Name

Q/CR 699-2019 Technical Specification for Flame Retardant of Non metallic Materials for Railway Vehicles

This standard stipulates The terms and definitions、 product classification、 requirements、 and test methods of non-metallic materials for flame retardancy of railway passenger cars have been introduced

This standard is applicable to the inspection and manufacturing of the flame retardancy of non-metallic materials used in railway passenger cars (including power concentrated multiple unit trailers and control cars)

Q/CR 699-2019 Technical Conditions for Flame-retardant Nonmetallic Materials of Railway Passenger Cars - Product Classification

Table 2: Horizontal Downward Surface Products in Car

Table 3: Vertical Surface Products in Car、 Limited Surface Products in Car

Table 4 Horizontal Upward Surface Products in the Car

Table 5 Interior Framework Structural Materials

Table 6 Inorganic Materials for Insulation

Table 7 Polymer Materials for Insulation

Table 8 Packaging Materials for Insulation

Table 9 Masking Materials

Table 10 Foam Materials

Table 11 Curtain Materials for door curtains and curtains

Table 12 Materials for the main body of air conditioning ducts

Table 13 General Rubber Materials for Car Interior

Table 14 Rubber Windshield Materials

Table 15 Rubber Windshield Materials

Table 16 Protective Pipe and Trunking Materials

TB/T 1484 Wires and Cables

Other products with an exposed area of less than 0.2m2 in the car; The thickness of the metal surface coating inside the vehicle is less than 0.15mm

Q/CR 699 Technical Conditions for Flame retardancy of Non metallic Materials for Railway Passenger Cars - Test Items

Table 6 Test Items for Inorganic Materials Used for Insulation are Non combustible Tests The material test items in other tables are oxygen index、 45 ° angle combustion、 smoke density、 and toxicity tests

Q/CR 699 Technical Conditions for Flame-retardant Nonmetallic Materials of Railway Passenger Cars - Reference Standard

GB/T 2406.2 Plastics - Determination of Burning Behavior by Oxygen Index Method - Part 2: Room Temperature Experiment

GB/T 5454 Textiles - Burning Performance Test - Oxygen Index Method

GB/T 8323.2 Plastic Smoke Generation - Part 2: Single Chamber Method for Determination of Smoke Density Test Method

GB/T 8624-2012 Classification of Burning Performance of Building Materials and Products

GB/T 10707 Determination of Burning Properties of Rubber

GB/T 17596-1998 Commercial Washing Procedures for Textile Fabrics Before Burning Tests

TB/T 1484 (All Parts) Locomotive and Rolling Stock Cables

ISO 19702 Sampling and Analysis of Toxic Gases and Vapours in Combustion Products Using Fourier Transform Infrared (FTIR) Spectroscopy

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

inspection and testing process:

1. Telephone communication and confirmation of requirements

Testing and testing characteristics:

1. The testing industry is fully covered、 meeting different testing needs

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing、 with no testing fees charged

5. Self service order delivery for free on-site sampling