Food microbiology, Method 19.1: Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of β-glucuronidase-positive Escherichia coli - Colony-count technique at 44°C using membranes and 5-bromo-4-chloro-3- indolyl β-D-glucuronide (ISO 16649-1:2018, MOD)
Edition 2024

Food microbiology Meat and meat products - Enumeration of Brochothrix thermosphacta - Colony-count technique
Edition 2004

Food microbiology Examination for specific organisms - Colony count of yeasts and moulds
Edition 2009

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of coliforms - Colony-count technique
Edition 2012-10-30

Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of mesophilic lactic acid bacteria - Colony-count technique at 30 °C
Edition 1998-08

Testing of paper and board; determination of the total colony count
Edition 1992-04

Testing of paper and board - Determination of the surface colony count (OKZₛ)
Edition 2021-02

Water quality - Enumeration of culturable micro-organisms - Colony count by inoculation in a nutrient agar culture medium (ISO 6222:1999); German version EN ISO 6222:1999
Edition 1999-07

Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 1: Enumeration of sulfite-reducing Clostridium spp. by colony-count technique (ISO 15213-1:2023); German version EN ISO 15213-1:2023
Edition 2023-05

Microbiology of the food chain - Horizontal method for the detection and enumeration of Clostridium spp. - Part 2: Enumeration of Clostridium perfringens by colony-count technique (ISO 15213-2:2023); German version EN ISO 15213-2:2023
Edition 2024-05