ISO 18286:2008 specifies requirements for tolerances for hot-rolled stainless steel plates (quarto plates) made on a reversing mill with the following characteristics: nominal thickness, t, from 4 mm to 250 mm; and nominal width, w, equal to or greater than 600 mm.Tolerances for plate of width w less than 600 mm cut or slit from wider plate should be agreed upon between manufacturer and purchaser at the time of enquiry and order.ISO 18286:2008 is not applicable to round plates, custom-made plates, checker plate or bulb plate for flooring or wide flats, nor to continuous-process plates (plate made with coiling).