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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
Mechanical vibration - Evaluation of machine vibration by measurements on non-rotating parts - Part 2: Land-based steam turbines and 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 non-rotating parts - Part 3Industrial machines with nominal power above 15 kW and nominal speeds between 120 r/min and 15 000 r/min when measured in situ
Standard published on 30.12.2011
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—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 non-rotating parts--Part 5:Machine sets in hydraulic power generating and pumping plants
Standard published on 20.5.2002
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 6: Reciprocating machines with power ratings above 100 kW
Standard published on 31.12.2024
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 7: Rotodynamic pumps for industrial applications, including measurements on rotating shafts
Standard published on 31.12.2015
Selected format:Centre drills
Standard published on 24.2.2016
Selected format:Machine hacksaw blades - Part 1: Types and dimensions
Standard published on 23.12.2010
Selected format:Machine hacksaw blades - Part 2: Technical specifications
Standard published on 23.12.2010
Selected format:The basic types and dimensions for spur shaper cutters
Standard published on 20.7.2001
Selected format:Latest update: 2026-06-24 (Number of items: 2 284 377)
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