参考文献

    [1] ISO 11922-1：1997 Thermoplastics pipes for the conveyance of fluids—Dimensions and tolerances—Part 1：Metric series

    [2]  ISO/TR 10839：2000 Polyethylene pipes and fittings for the supply of gaseous fuels—Code of practice for design，handling and installation

    [3]  IEC 60529：2001 Degrees of protection provided by enclosures（IP code）

    [4]  EN 12117：1997 Plastics piping systems—Fittings，valves and ancillaries—Determination of gaseous flow rate/pressure drop relationships

    [5]  IS0 12176-1：1998 Plastics pipes and fittings—Equipment for fusion jointing polyethylene systems—Part 1：Butt fusion

    [6]  IS0 12l76-2：2000 Plastics pipes and fittings—Equipment for fusion jointing polyethylene systems—Part 2：Electrofusion

    [7]  EN 1555-3：2002 Plastics pipimg systems for the supply of gaseous fuels—Polyethylene (PE)—Part 3：Fittings