State system for ensuring the uniformity of measurements. Standard reference data. Compounds based on potassium dihydrogen phosphate. Lattice parameters in the range of concentrations of deuterium from 15 at. %. to 80 at.%
Microbiology of food and animal feed. Preparation of test samples, initial suspension and decimal dilutions for microbiological examination. Part 6. Specific rules for the preparation of samples taken at the primary production stage
