Occupational safety standards system. Respiratory protective devices. Valved filtering half masks to protect against gases and or gases and particles. General specifications
Indoor air. Part 14. Determination of total (gas and particle phase) polychlorinated dioxin-like biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/PCDFs). Extraction, clean-up and analysis by high resolution gas chromatography and mass spectrometry
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
