Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 12148-1989 Analysis of water used in boiler and cooling system-The determination of total silicon-Photometric method by conversion with hydrofluoric acid for low-silicon 45.0 via email in 1~3 business day abolished
GB/T 9222-2008 Strength calculation of pressure parts for watertube boilers 440.0 via email in 1 business day superseded
NB/T 47006-2009(JB/T 4757) Aluminum plate-fin heat exchanger 380.0 via email in 1 business day valid
GB 12157-1989 Analysis of water used in boiler and cooling system-Determination for dissolved oxygen-Internal electrolysis 45.0 via email in 1~3 business day superseded
GB/T 10184-1988 Performance test code for utility boiler 640.0 via email in 1 business day superseded
GB/T 14426-1993 Analysis of water used in boiler and cooling system-Determination of sulfite 105.0 via email in 1~3 business day abolished
GB/T 21435-2008 Phase change heater 330.0 via email in 1~3 business day valid
GB/T 16508.5-2013 Shell Boilers - Part 5: Safety Appurtenances and Instruments 140.0 via email in 1~2 business day valid
GB/T 14427-1993 Analysis of water used in boiler and cooling system. Determination of iron 75.0 via email in 1~3 business day superseded
JB/T 10523-2005 Circular corrugated heat exchange tubes for tube shell exchangers 135.0 via email in 1~3 business day valid
GB/T 10180-2003 Thermal performance test code for industrial boilers 300.0 via email in 1~2 business day valid
GB/T 16507.7-2013 Water-tube Boilers - Part 7: Safety Appurtenances and Instruments 160.0 via email in 1~2 business day valid
GB/T 14811-2008 Heat Pipe Terminology 200.0 via email in 1 business day valid
GB/T 27698.7-2011 Test method for the performance of heat exchangers and heat exchange element—Part 7:Measurement of noise from air-cooled heat exchangers 480.0 via email in 1~5 business day valid
GB/T 3166-2004 Parameters for hot water boilers 30.0 via email in 1~3 business day valid
GB/T 1921-2004 Parameters for industrial steam boilers 30.0 via email in 1~3 business day valid
GB/T 15386-1994 Air cooled heat exchanger 675.0 via email in 1~8 business day superseded
GB/T 9082.2-2011 Heat pipes with wick inside 210.0 via email in 1~3 business day valid
DB31/T 628-2012 The energy efficiency testing and evaluation method of industrial heat exchanger in service via email in business day valid
NB/T 47006-2009(JB/T4757) Aluminum plate-fin heat exchanger 380.0 via email in 1 business day valid
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