GOST 25407-90

Occupational safety standards system. Personal protective means for respiratory system. Method for determination of breathing resistance

Corrosion-resistant steel seamless tubes for power engineering industry. Specifications

Steel wire and products thereof. Non-ferrous metallic coatings on steel wire. Aluminium coatings

Electromagnetic compatibility of technical equipment. Electromagnetic disturbance from technical equipment intended for use in residential, commercial and light-industry environments Limits and test methods

Connecting lines and engineering area in digital and analog pathes of the a sound broadcasting. Technical characteristics. Parameters of quality. Methods of measurements

Statistical methods. Sampling procedures for inspection by variables. Sequential sampling plans for percent nonconforming (known standard deviation)