ISO 28000 ISO 28000 ISO 28000:2007 (Specification for security management systems for the supply chain) is an International Organization for Standardization standard specifying requirements of a security management system particularly dealing with security assurance in the supply chain. Parts of the standard are considered "publicly available", while the entire specification can be purchased from the International Standards Organization. ISO 28000:2007 was developed to codify operations of security within the broader supply chain management system. The PDCA management systems structure was adopted in developing ISO 28000:2007 to bring the elements of this standard in congruence with related standards such as ISO 9001:2000 and
ISO 31 ISO 31 ISO 31 (Quantities and units, International Organization for Standardization, 1992) is a deprecated international standard for the use of physical quantities and units of measurement, and formulas involving them, in scientific and educational documents. It is superseded by ISO/IEC 80000. The standard comes in 14 parts: A second international standard on quantities and units was IEC 60027 . The ISO 31 and IEC 60027 Standards were revised by the two standardization organizations in collaboration (, ) to integrate both standards into a joint standard "ISO/IEC 80000 - Quantities and Units" in which the quantities and equations used with