Translation of "Engrenage à vis sans fin et roue tangente " (French → English) :

i. Multiple-seal, canned drive, magnetic drive, bellows or diaphragm pumps, with manufacturer's specified maximum flow-rate greater than 0,6 m3/hour, or vacuum pumps with manufacturer's specified maximum flow-rate greater than 5 m3/hour (under standard temperature (273 K (0 °C)) and pressure (101,3 kPa) conditions); and casings (pump bodies), preformed casing liners, impellers, rotors or jet pump nozzles designed for such pumps, in which all surfaces that come in direct contact with the chemical(s) being processed are made from any of the following materials:

When the vehicle is stationary and has its steered wheels so directed that if the vehicle moved, its outermost forward point would describe a circle of 12,50 m radius, a vertical plane tangential to the side of the vehicle which faces outwards from the circle must be established by marking a line on the ground.

4.5.3'. Ramp angle' means the minimum acute angle between two planes, perpendicular to the median longitudinal plane of the vehicle, tangential to the tyres of the front wheels and to the tyres of the rear wheels respectively, under a static load, the intersection of which touches the rigid underside of the vehicle apart from the wheels.

In the case of single or multiple axles where the distance between the adjacent tyres is at least 250 mm, the outer valance must cover the surface extending from the lower to the upper part of the mudguard up to a straight line formed by the tangent to the upper edge of the tyre or tyres and lying between the vertical plane formed by the tangent to the front of the tyre and the mudguard or rain flap located behind the wheel or wheels (Figure 5b).