Edison screw lampholders
Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection
Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
Measuring relays and protection equipment - Part 1: Common requirements
Measuring relays and protection equipment - Part 26: Electromagnetic compatibility requirements
Measuring relays and protection equipment - Part 27: Product safety requirements
Scales and sizes for plotting frequency characteristics and polar diagrams
Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index
Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index
Sound system equipment - Part 21: Acoustical (output-based) measurements
Sound system equipment - Part 22: Electrical and mechanical measurements on transducers
53,361 unterschiedliche Normreferenzen aus erfassten offiziellen Quellen. Frühere Ausgaben sind enthalten. Der Index und die Sammlungen der Herausgeber haben einen unterschiedlichen Umfang. Quellen und Abdeckung anzeigen.