Each variation in speed of 10 kilometres per hour must be represented on the record by a variation of at least 1,5 millimetres on the corresponding coordinate.
Caithfear gach comhathrú sa luas de 10 gciliméadar in aghaidh na huaire den fhad a léiriú ar an taifead trí chomhathrú 1,5 milliméadair amháin ar a laghad ar an gcomhordanáid chomhfhreagrach.