Microbiological analysis of milk; determination of Escherichia coli; fluorescence optical method with parallel determination of coliforms
Edition 1992-10

Chlorinators for water treatment - Technical requirements for equipment, installation and operation
Edition 2020-01

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 2: SD format for 525-60 and 625-50 systems (IEC 61834-2:1998); German version EN 61834-2:1998
Edition 1999-04

Medical microbiology - Quality management in medical microbiology - Part 6: Requirements relating to test organisms and their use in performance testing
Edition 2019-06

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 3: HD format for 1125-60 and 1250-50 systems (IEC 61834-3:1999); German version EN 61834-3:2000
Edition 2000-10

Test methods for electrical materials, printed boards and other interconnection structures and assemblies - Part 2: Test methods for materials for interconnection structures (IEC 61189-2:2006); German version EN 61189-2:2006
Edition 2007-01

Medical microbiology; medical microbiological laboratories; requirements for equipment
Edition 1986-01

Microbiological examination of meat and meat products - Determination of Enterobacteriaceae - Part 1: Spatula method (reference method)
Edition 2019-06

Microbiological examination of meat and meat products - Determination of Enterobacteriaceae - Part 2: Drop plating method
Edition 2019-06

Soil quality - Chemical laboratory tests - Part 10: Testing and evaluation of water for irrigation
Edition 2009-01