GOST 16491-80

Tin. Methods for determination of arsenic

Single-head wrenches for lower torque applications. Widths of heads. Basic parameters

Informational ensuring of equipment and operational activity. System «man–information». The process of information-exchange when carrying out human-information interactions activities

Low-voltage switchgear and controlgear. Part 5-4. Control circuit devices and switching elements. Method of assessing the performance of low-energy contacts. Special tests

Optical bench instruments. Height of arrangement of optical axis and exit pupil

Occupational safety standards system. Operator`s location in a sitting position. General ergonomic requirements