GOST 13877-96

Belts and watch straps. General specifications

Non-ducted portable air-cooled air conditioners and air-to-air heat pumps having a single exhaust duct. Testing and rating for performance

Semolina. Specifications

Model for quality assurance service

Soils. Methods for determination of calcium and magnesium in water extract

Interstate system for ensuring the uniformity of measurements. Weight amounts of the standard materials for preparation of the buffer solutions - operational pH standards of 2-nd and 3-rd classes. The technical and the metrological characteristics. Methods of them