By way of minimal additional requirements, each record sheet must bear, in printed form, a time-scale graduated in such a way that the time may be read directly at intervals of fifteen minutes while each five-minute interval may be determined without difficulty.
Mar íoscheanglais bhreise, caithfidh gach leathán taifid amscála a bheith aige, i bhfoirm phriontáilte ionas gur féidir an t-am a léamh go díreach ag eatraimh ama 15 nóiméad agus go mbeifear in ann gach eatramh ama cúig nóiméad a léamh gan stró.