Measurements of the electrical properties of electronic tubes and valves. Part 9: Methods of measuring the cathode-interface impedance
(Mesures des caracteristiques electriques des tubes electroniques. Neuvieme partie: Methodes de mesure de l´impedance d´interface de cathode)

Standard published on 1.1.1966

Designation of phase differences by hour numbers in three-phase AC systems
(Designation des dephasages par indices horaires des reseaux en courant alternatif triphases)

Standard published on 9.7.2021

Hollow metallic waveguides - Part 1: General requirements and measuring methods
(Guides d´ondes metalliques creux - Partie 1: Exigences generales et methodes de mesure)

Standard published on 18.5.2016

Hollow metallic waveguides - Part 2: Relevant specifications for ordinary rectangular waveguides
(Guides d´ondes metalliques creux - Partie 2: Specifications applicables relatives aux guides d´ondes rectangulaires ordinaires)

Standard published on 13.11.2025

Hollow metallic waveguides. Part 3: Relevant specifications for flat rectangular waveguides
(Guides d´ondes metalliques creux. Partie 3: Specifications particulieres pour les guides d´ondes rectangulaires plats)

Standard published on 1.1.1964

Hollow metallic waveguides - Part 4: Relevant specifications for circular waveguides
(Guides d´ondes metalliques creux - Partie 4: Specifications applicables aux guides d’ondes circulaires)

Standard published on 9.6.2022

Hollow metallic waveguides - Part 6: Relevant specifications for medium flat rectangular waveguides
(Guides d´ondes metalliques creux - Partie 6: Specifications particulieres pour les guides d´ondes rectangulaires plats moyens)

Standard published on 1.1.1967

Amendment 1 - Hollow metallic waveguides - Part 6: Relevant specifications for medium flat rectangular waveguides
(Amendement 1 - Guides d´ondes metalliques creux - Sixieme partie: Specifications particulieres pour les guides d´ondes rectangulaires plats moyens)

Change published on 1.1.1977

Hollow metallic waveguides - Part 7: Relevant specifications for square waveguides
(Guides d´ondes metalliques creux - Partie 7: Specifications particulieres pour les guides d´ondes carres)

Standard published on 1.1.1972

Flanges for waveguides - Part 1: General requirements
(Brides pour guides d´ondes - Partie 1: Exigences generales)

Standard published on 18.5.2016