Materials and systems for the protection and repair of concrete structures. Requirements to injection products and filling of cracks, voids and interstices
State system for ensuring the uniformity of measurements. Parameters of ultrasonic fields. General requirements to measuring methods and characterization of fields in the frequency range 0,5 to 40 MHz
Food products, food raw materials. Method for determination of sulfonamides, nitroimidazoles, penicillins, amphenicols by high performance liquid chromatography - mass spectrometry
