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Part III

Original text. Later amendments are not shown.

Formulae for calculating pressures

Pressure 1 in bars = 1330 × the mechanical advantage the internal cross-sectional area of the pump in millimetres Pressure 2 in bars = 1.03 × the compression ratio of the pump.

In this Part of this Schedule “the mechanical advantage” means the factor by which the force applied to the pump handle is multiplied between the point at which the force is applied and the pump piston.