GOST 13938.3-78

Manganese ores, concentrates and agglomerates. Methods for the determination of manganese dioxide

State system for ensuring the uniformity of measurements. Certified reference materials of gas mixtures with Nitrogen oxide, Nitrogen dioxide, Hydrogen sulfide, Sulfur dioxide, Ammonia. Procedure of determining the metrological characteristics

Statistical methods. Sampling procedures for inspection by attributes. Part 4. Procedures for assessment of declared quality level

Occupational safety standards system. Occupational safety and health management systems in small organizations. Requirements and recommendations for application

Resources saving. Waste treatment. Requirements for exchange of information concerning on hazardous facilities accidents capable of causing transfrontier damage

Fruit and vegetable juices. Determination of citric acid (citrate)