Lightweight protective helmets (for use in pedal cycling, horse riding and other activities requiring similar protection), Part 2: Helmets for pedal cyclists
Food microbiology, Method 11.1: Microbiology of the food chain - Preparation of test samples, initial suspension and decimal dilutions for microbiological examination - General rules for the preparation of the initial suspension and decimal dilutions (ISO 6887-1:2017, MOD)