Detail of GB 21668-2008

Introduction of GB 21668-2008

1 Scope This standard specifies the provisions of vehicle for the carriage of dangerous goods with regard to their specific constructional features. This standard is applicable to N type and O type vehicles as well as trains consisting of N type vehicles and one O type vehicle for transport of dangerous goods. 2 Normative References The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending error in the text), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of the normative document is applicable. For undated references, the latest edition of the normative document applies. GB 3836.1 Electrical Apparatus for Explosive Gas Atmospheres - Part 1: General Requirements (GB 3836.1-2000, eqv IEC 60079-0: 1998) GB 3836.2 Electrical Apparatus for Explosive Gas Atmospheres - Part 2: Flameproof Enclosure "d"(GB 3836.2-2000, eqv IEC 60079-1: 1990) GB 3836.3 Electrical Apparatus for Explosive Gas Atmospheres - Part 3: Increased Safety "e"(GB 3836.3-2000, eqv IEC 60079-7: 1990) GB 3836.4 Electrical Apparatus for Explosive Gas Atmospheres - Part 4: Intrinsic Safety "i"(GB 3836.4-2000, eqv IEC 60079-11: 1999) GB 3836.9 Electrical Apparatus for Explosive Gas Atmospheres - Part 9: Encapsulation “m”(GB 3836.9-2006, IEC 60079-18: 2004, IDT) GB 4208 Degrees of Protection Provided by Enclosure (IP Code(GB 4208-1993, eqv IEC 529: 1989) GB/T 4606 Road Vehicles - 50 Semi-trailer Fifth Wheel Coupling Pin - Basic and Mounting/Interchangeability Dimensions(GB/T 4606-2006, ISO 337: 1981, IDT) GB/T 4607 Road Vehicles - 90 Semi-trailer Fifth Wheel Coupling Pin - Basic and Mounting/Interchangeability Dimensions(GB/T 4607-2006, ISO 4086: 2001, IDT) GB/T 4781 Commercial Road Vehicles - 50mm Drawbar Eye - Interchangeability(GB/T 4781-2006, ISO 1102: 2001, IDT) GB 6944 Classification and Code of Dangerous Goods GB 12268 List of Dangerous Goods GB/T 13880 Road Vehicles - Fifth Wheels - Interchangeability(GB/T 13880-2007, ISO 3842: 2001, IDT) QC/T 446 Truck Tractor - Fifth Wheels 3 Terms and Definitions For the purpose of this standard, the following terms and definitions apply. 3.1 Dangerous goods Dangerous goods which are classified according to GB 6944 and listed in GB 12268 (hereinafter referred to as goods). 3.2 EX/II type vehicles Vehicles for the carriage of explosive cargos whose distribution quota meets the requirements of II in Appendix A. 3.3 EX/III type vehicles Vehicles for the carriage of explosive cargos whose distribution quota meets the requirements of III in Appendix A. 3.4 FL type vehicles Vehicles for the carriage of liquid whose flash point is lower than or equal to 61℃, or for the carriage of inflammable gas, with vehicle-mounted tank or tank container as loading vessels whose volume is greater than 3 m3. 3.5 OX type vehicles Vehicles for the carriage of stable hydrogen peroxide or its aqueous solution (with concentration greater than 60%), with vehicle-mounted tank or tank container as loading vessels whose volume is greater than 3 m3. 3.6 AT type vehicles Non-FL type and non-OX type vehicles whose loading vessels are the same as those of FL type and OX type vehicles.

Contents of GB 21668-2008

1 Scope 2 Normative References 3 Terms and Definitions 4 Requirements Appendix A (Normative) Distribution Quota Sequence List Appendix B (Normative) Corresponding List for Technical Specifications of Five Types of Vehicles