GOST 23381-89

Vessels and apparatus. Norms and methods of strength calculation. Determination of stresses at nozzle - to -shell and head junctions under action of pressure and external loads on the nozzle

Hard coals and brown coals. Method of sampling by boring holes

Standardization in Russian Federation. Preliminary national standards. Instructions for development, taking over, application and cancellation

Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBO`s). Part 2-1. Applicability of the general rules to RCBO's functionally independent of line voltage

Steel wire ropes. Safety. Part 1. General requirements

Test on gases evolved during combustion of materials from cables. Part 3. Measurement of low level of halogen content by ion chromatography