reference: R101:1991 T.4

ID: 01206

a pressure that does not vary, or that varies continuously at speeds not exceeding: 1 % of the upper limit of the measuring range per second, for pressure gauges and vacuum gauges, 1 % of the sum of the upper limits of the measuring ranges per second, for pressure-vacuum gauges, with the greatest pressure variation in one minute not exceeding 5 % of the above values