Fundamentals for detection and determination of microorganisms in foodstuffs with impedance-method
Edition 2020-12

Analysis of foodstuffs - Detection of Salmonella with impedance-method
Edition 2018-02

Analysis of foodstuffs - Enumeration of microorganisms by means of impedance-method - Determination of aerobic mesophile bacterial count
Edition 2018-02

Aerospace series - Elements of electrical and optical connection - Test methods - Part 223: Measurement of characteristic impedance of a coaxial connector or contact; German and English version EN 2591-223:2007
Edition 2009-01

Aerospace series - Elements of electrical and optical connection; Test methods - Part 701: Electrical elements; Measurement of open circuit impedance of couplers; German and English version EN 2591-701:2001
Edition 2002-10

Connectors for electronic equipment - Tests and measurements - Part 25-7: Test 25g - Impedance, reflection coefficient and standing voltage wave ratio (VSWR) (IEC 60512-25-7:2004); German version EN 60512-25-7:2005
Edition 2005-12

Printed boards and printed board assemblies - Design and use - Part 1-2: Generic requirements; controlled impedance (IEC 61188-1-2:1998); German version EN 61188-1-2:1998
Edition 1999-03

Specification for WB series glass beads with 50 Ω impedance for RF connectors (IEC 63295:2022); German version EN IEC 63295:2022
Edition 2024-04

Acoustics - Determination of sound absorption coefficient and impedance in impedances tubes - Part 1: Method using standing wave ratio (ISO 10534-1:1996); German version EN ISO 10534-1:2001
Edition 2001-10