Acoustics. Determination of sound power levels and sound energy levels of noise sources using sound pressure. Engineering/survey methods for use in situ in a reverberant environment
Materials for printed boards and other interconnecting structures. Part 2-5. Reinforced base materials, clad and unclad. Brominated epoxide cellulose paper reinforced core/woven E-glass reinforced surfaces laminated sheets of defined flammability (vertical burning test), copper-clad
Electronics automated design systems. Information support. Technical characteristics of electronic components. Semiconductor devices and modules. Declarative knowledge specifications according to technical characteristics