Vapor pressure called partial pressure. For example, air at sea level, and saturated with water vapor at 20 °C, has partial pressures of about 2.3 kPa of water, 78 kPa of nitrogen, 21 kPa of oxygen and 0.9 kPa of argon, totaling 102.2 kPa, making the basis for standard atmospheric pressure. Vapor pressure is measured in the standard units of pressure. The International System of Units (SI) recognizes pressure as a derived unit with the dimension of force per area and designates the pascal (Pa) as its standard unit. One pascal is one newton per square meter (N·m or kg·m·s). Experimental measurement
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,