scope:

PREFACE

This standard is being developed for agencies in North America to use for examination, testing and certification of compressed Natural Gas Vehicle (NGV) fueling nozzles and receptacles only. As such, the scope refers to nozzles and receptacles used in the NGV fueling system and not to the system. The American Gas Association (A.G.A.) Requirements for Natural Gas Refueling Connection Devices (No. 1-90) and Canadian Gas Association Certification Requirement for NGV Nozzles and Receptacles (Draft CR 90-005) provided the basis for this standard.

A nozzle certified to this standard will be functionally compatible from a safety and performance perspective with all listed receptacles of compatible profile and system pressure. Similarly, a receptacle certified to this standard will be functionally compatible from a safety and performance perspective with all listed nozzles of compatible profile and system pressure.

Whereas there may ultimately be a multitude of nozzles and receptacles by a host of manufacturers, all of which for safety reasons must be compatible with each other, a series of "standard" receptacle profiles have been specified. These standard profiles incorporate the mandated design specifications (mating materiais, geometry and tolerances) which must be utilized in the certification of a submitted nozzle or receptacle. The design shall be unique and not currently in commercial use and shall only be used for compressed natural gas.