Information technology. Real time locating systems (RTLS). Part 21. Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol: Transmitters operating with a single spread code and employing a DBPSK data encoding and BPSK spreading scheme
State system for ensuring the uniformity of measurements. State verification scheme for measuring instruments of the content of components in gaseous media
Industrial automation systems and integration. Product data representation and exchange. Part 439. Application module. AP239 product life cycle support
