Related to Tuck-point grinding

H-point means the pivot centre of the torso and thigh of the H-point machine when installed in a vehicle seat in accordance with Annex 12. Once determined in accordance with the procedure described in Annex 12, the "H" point is considered fixed in relation to the seat-cushion structure and is considered to move with it when the seat is adjusted.
Service Point the place at which the Services are to be performed.
R-point means a reference point defined for each seat by the manufacturer in relation to the vehicle's structure, as indicated in Annex 6 to Regulation No.94
Flash point means the lowest temperature of a liquid at which its vapours form a flammable mixture with air;
Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

Tuck-point grinding definition