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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Radiograpial testing for aluminum alloy castings—Defect levels
Standard published on 13.7.2018
Selected format:Mechanical vibration ofnon-reciprocating machines--Measurements on rotating shafts and evaluation criteria--Part 1:General guidelines
Standard published on 8.4.1999
Selected format:Mechanical vibration - Evaluation of machines vibration by measurements on rotating shafts - Part 2: Land-based steam turbine - generators in excess of 50MW with normal operating speeds of 1500r/min1800r/min3000r/min and 3600r/min
Standard published on 5.11.2012
Selected format:Mechanical vibration - Evaluation of machine vibration by measurements on rotating shafts - Part 3: Coupled industrial machines
Standard published on 30.12.2011
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on rotating shafts—Part 4: Gas turbine sets with fluid-film bearings
Standard published on 31.12.2015
Selected format:Mechanical vibration evaluation of machine vibration by measurements on rotating shafts - Part 5: Machine sets in hydraulic power generating and pumping plants
Standard published on 27.9.2008
Selected format:Mechanical vibration and shock—Experimental determination of mechanical mobility—Part 1: Basic terms and definitions, and transducer specifications
Standard published on 14.5.2018
Selected format:Vibration and shock - Experimental determination of mechanical mobility - Part 2: Measurements using single-point translation excitation with an attached vibration exciter
Standard published on 2.6.2006
Selected format:
Mechanical vibration and shock—Experimental determination of mechanical mobility—Part 2: Measurements using single-point translation excitation with an attached vibration exciter
Execute Date: january 2026
Standard published on 30.6.2025
Selected format:Vibration and shock - Experimental determination of mechanical mobility - Part 3: Measurement using impact excitation
Standard published on 8.9.2006
Selected format:Latest update: 2025-12-28 (Number of items: 2 253 436)
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