KS J ISO 7251-2021 Microbiology of food and animal feeding stuffs-Horizontal method for the detection and enumeration of presumptive Escherichia coli -Most probable number technique
2021KS J ISO 7251-2021 Microbiology of food and animal feeding stuffs-Horizontal method for the detection and enumeration of presumptive Escherichia coli -Most probable number technique
0000 KS J ISO 7251-2007(2012)
2007KS J ISO 7251:2007 Microbiology of food and animal feeding stuffs-Horizontal method for the detection and enumeration of presumptive Escherichia coli -Most probable number technique