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GB/T 29024.3-2012 Determination of particle size distribution—Single particle light interaction methods—Part 3:Light extinction liquid-borne particle counter 
  Issued on: 2012-12-31   Price(USD): 270.0
GB/T 29024.2-2025 Determination of particle size distribution—Single particle light interaction methods—Part 2: Light scattering liquid-borne particle counter 
  Issued on: 2025-06-30   Price(USD): 360.0
GB/T 27929-2025 Financial services—Requirements for message authentication using symmetric techniques 
  Issued on: 2025-06-30   Price(USD):
GB/T 29024.2-2016 Determination of particle size distribution―Single particle light interaction methods―Part 2:Light scattering liquid-borne particle counter 
  Issued on: 2016-02-24   Price(USD): 230.0
GB/T 27929-2011 Banking - Requirements for message authentication using symmetric techniques  
  Issued on: 2011-12-30   Price(USD): 450.0
GB/T 24434-2025 Commode chairs 
  Issued on: 2025-06-30   Price(USD): 240.0
GB/T 24434-2009 Commode chairs 
  Issued on: 2009-9-30   Price(USD): 204.0
GB/T 22030-2025 Blendstocks of ethanol gasoline for motor vehicles 
  Issued on: 2025-06-30   Price(USD): 255.0
GB 22030-2017 Blendstocks of ethanol gasoline for motor vehicles 
  Issued on: 2017-09-07   Price(USD): 140.0
GB/T 21649.2-2025 Particle size analysis—Image analysis methods—Part 2:Dynamic image analysis methods 
  Issued on: 2025-06-30   Price(USD):
GB/T 21649.2-2017 Particle size analysis-Image analysis methods- Part 2:Dynamic image analysis methods 
  Issued on: 2017-03-03   Price(USD): 330.0
GB/T 21107-2025 Determination of horse and donkey-derived materials in feeds 
  Issued on: 2025-06-30   Price(USD): 255.0
GB/T 21107-2007 Identification of horse and donkey derived materials in animal-originated feedstuffs—PCR method 
  Issued on: 2007-12-18   Price(USD): 120.0
GB/T 21101-2007 Identification of porcine derived materials in animal-originated feedstuffs—PCR method 
  Issued on: 2007-12-18   Price(USD): 120.0
GB/T 21101-2025 Determination of porcine-derived material in feeds 
  Issued on: 2025-06-30   Price(USD): 195.0
GB/T 20899.9-2025 Methods for chemical analysis of gold ores—Part 9: Determination of carbon content 
  Issued on: 2025-06-30   Price(USD): 255.0
GB/T 20899.9-2007 Methods for chemical analysis of gold ores—Part 9:Determination of carbon cotents 
  Issued on: 2007-4-27   Price(USD): 124.0
GB/T 20190-2025 Determination of bovine; ovine and goat-derived materials in feeds 
  Issued on: 2025-06-30   Price(USD): 330.0
GB/T 20190-2006 Detection of bovine, sheep and goat- derived material in feeds － Qualitative polymerase chain reaction（PCR）method 
  Issued on: 2006-05-17   Price(USD): 130.0
GB/T 20175-2025 Surface chemical analysis—Sputter depth profiling—Optimization using layered systems as reference materials 
  Issued on: 2025-06-30   Price(USD):
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