Basic norms of interchangeability. ISO general purpose metric screw threads. Tolerances. Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing
Uniform provisions concerning the approval of compression ignition (C.1.) and natural gas (N.G.) engines as well as positive-ignition (P.1.) engines fuelled with liquefied petroleum gas (LPG) and vehicles equipped with C.1 and N.G. engines and P.1. engines fuels with LPG, with regard to the emissions of pollutants by the engine