GOST 8927-79

Welding consumables. Gases and gas mixtures for fusion welding and allied processes

Occupational safety standards system. Special clothing for protection against gases and liquid chemicals. Method for determining the protective properties of the material under the action of chlorine and ammonia

Lifts. General requirements for modernization of existing lifts

Milk and milk products. Methods for determination of the hlororganic pesticides residues

Semicoke carburizator. Specifications

Internal buildings and structures utilities. Arrangement of ventilation and conditioning systems of server rooms. Regulation and monitoring of work