Pressure measurement because atmospheric pressure is always changing and the reference in this case is fixed at 1 bar. To produce an absolute pressure sensor, the manufacturer seals a high vacuum behind the sensing diaphragm. If the process-pressure connection of an absolute-pressure transmitter is open to the air, it will read the actual barometric pressure. The SI unit for pressure is the pascal (Pa), equal to one newton per square metre (N·m or kg·m·s). This special name for the unit was added in 1971; before that, pressure in SI was expressed in units such as N·m. When indicated, the zero reference is
Standard for the Uniform Scheduling of Medicines and Poisons and poisons are classified according to the SUSMP to achieve uniform national regulation. The current version, the SUSMP 16, is contained in the "Poisons Standard March 2018". Schedule 1 is blank. Schedule 1 does not currently contain any medicines or poisons. Schedule 2 (S2) drugs and poisons, otherwise known as Pharmacy Medicines, are substances and preparations for therapeutic use that – Examples: The SUSMP March 2018 defines a Schedule 2 substance as "Substances, the safe use of which may require advice from a pharmacist and which should be available from a pharmacy or, where a pharmacy service is not available,