State system for ensuring the uniformity of measurements. Dispersed characteristics of nanometric aerosols and suspensions. Measurement methods. Basic principle
Petroleum and natural gas industries. Drilling and production equipment. Part 4. Practices for side-pocket mandrels and related equipment. General technical requirements
Safety requirements for electrical equipment for measurement, control and laboratory use. Part 2-033. Particular requirements for hand-held multimeters for domestic and professional use, capable of measuring mains voltage
Sound broadcasting digital. Coding of signals of sound broadcasting with reduction of redundancy for transfer on digital communication channels. A part III (MPEG-4 audio). Audio lossless coding
