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Division 2.4.3

United Kingdom

Original text. Later amendments are not shown.

Control conditions for engines of categories NRE, NRG and RLR:

  1. (a)

    the atmospheric pressure greater than or equal to 82,5 kPa;

  2. (b)

    the ambient temperature within the following range:

    • equal to or above 266 K (– 7 °C),

    • less than or equal to the temperature determined by the following equation at the specified atmospheric pressure: Tc = – 0,4514 × (101,3 – Pb) + 311, where: Tc is the calculated ambient air temperature, K and Pb is the atmospheric pressure, kPa;

  3. (c)

    the engine coolant temperature above 343 K (70 °C).