GOST 30439-96

Russian sign language. Translation services for people with hearing disabilities. Basic provisions

Basic norms of interchangeability. Woodruff keys and keyways

Power transformers and reactors. Method for frequency response measurement

State system for ensuring the uniformity of measurements. Acoustics. Reference zero for the calibration of audiometric equipment. Part 9. Preferred test conditions for the determination of reference hearing threshold levels

Unified system of corrosion and ageing protection. Metal and non metal inorganic coatings. General requirements

Computers and data processing systems. Tolerable noise levels of technical facilities and methods of their determination