Mechanical vibration. Rotor balancing - Shaft and fitment key convention1 Scope This part of ISO 21940 specifies one convention for balancing the individual components (shaft and fitments) of a keyed rotor assembly. This provides compatibility of all balanced components so that when they have been assembled the overall balance tolerance and or vibration limit for the rotor assembly is met. This part of ISO 21940 specifies that half keys be used when balancing the individual components of a keyed rotor assembly. It also

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The transmission order of data within one video frame is defined in BS EN 61883-2

It also specifies requirements for the integrity of such hold-open systems when connected to fire detection and fire alarm systems or other systems

Conditions of testing

It details how to construct and test electrical equipment with pressurized enclosures

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3 describes a spectrophotometric method for the determination of trace amounts of steel lead

Annex C (informative) Example of electrical interlocking with guard locking

Specialist contractors and designers

chemicals or any product that can be described in terms of an industry understood descriptive name (element) and the characteristics that make up that part (attributes)

the voltage will be left to the relevant technical committees