Ceramic pressurized hollow insulators for high-voltage switchgear and controlgear.

UNGÜLTIG herausgegeben am 15.6.2001

Electroacoustics. Instruments for measurement of aircraft noise. Performance requirements for systems to measure one-third-octave band sound pressure levels in noise certification of transport-category aircraft.

UNGÜLTIG herausgegeben am 15.10.1995

Radiation conditions for use in the determination of characteristics for medical diagnostic X-ray equipment.

UNGÜLTIG herausgegeben am 15.7.1995

Alternating current static var-hour meters for reactive energy (classes 2 and 3).

UNGÜLTIG herausgegeben am 15.12.1996

Petrographic analysis of bituminous coal and anthracite. Glossary of terms relating to the petrographic analysis of bituminous coal and anthracite.

UNGÜLTIG herausgegeben am 31.8.1981

Petrographic analysis of bituminous coal and anthracite. Glossary of terms relating to the petrographic analysis of bituminuous coal and anthracite.

UNGÜLTIG herausgegeben am 15.4.1995

Petrographic analysis of bituminous coal and anthracite. Method of preparing coal samples for petrographic analysis.

UNGÜLTIG herausgegeben am 31.3.1982

Petrographic analysis of bituminous coal and anthracite. Method of determining maceral group composition of bituminous coal and anthracite.

UNGÜLTIG herausgegeben am 31.8.1981

Petrographic analysis of bituminous coal and anthracite. Method of determining maceral group composition of bituminous coal and anthracite.

UNGÜLTIG herausgegeben am 15.4.1995

Petrographic analysis of bituminous coal and anthracite. Method of determining microlithotype, carbominerite and minerite composition.

UNGÜLTIG herausgegeben am 28.2.1990