Premixes. Determination of vitamins: B1 (thiaminchloride), B2 (riboflavin), B3 (pantothenic acid), B5 (nicotinic acid and nicotinamide), B6 (pyridoxine), Bc (folic acid), C (ascorbic acid) content by method of capillary electrophoresis
State system for ensuring the uniformity of measurements. Metals and alloys. Instrumental indentation test for hardness and other material parameters. Part 3. Technical requirements and calibration of reference test blocks