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GB/T 27894.2-2020 Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 2:Uncertainty calculations $255.00 via email in 1~3 business day valid
GB/T 27894.3-2011 Natrual gas—Determination of composition with defined uncertainty by gas chromatography—Part 3:Determination of hydrogen,helium,oxyen,nitrogen,carbon dioxide and hydrocarbons up to C8 using two packed columns $220.00 via email in 1~3 business day superseded
GB/T 27894.3-2023 Natural gas―Determination of composition and associated uncertainty by gas chromatography―Part 3:Precision and bias $225.00 via email in 1~3 business day valid
GB/T 27894.4-2012 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4: Determination of nitrogen,carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns $210.00 via email in 1~3 business day valid
GB/T 27894.5-2012 Natural gas—Determination of composition with defined uncertainty by gas chromatography—Part 5:Determination of nitrogen,carbon dioxideand C1 to C5 and C+6 hydrocarbons for a laboratory and on-line process application using three columns $240.00 via email in 1~3 business day valid
GB/T 27894.6-2012 Natural gas—Determination of composition with defined uncertainty by gas chromatography—Part 6:Determination of hydrogen helium oxygen nitrogen carbon dioxide and C1 to C8 hydrocarbons using three capillary columns $300.00 via email in 1~5 business day valid
GB/T 27895-2011 Natural gas - Determination of the hydrocarbon dew point - Cooled mirror method $124.00 via email in 1~3 business day valid
GB/T 27896-2011 Test method for water vapor content of natural gas using—Electronic moisture analyzers $110.00 via email in 1~3 business day superseded
GB/T 27896-2018 Test method for water vapor content of natural gas—Electronic moisture analyzers $105.00 via email in 1~3 business day valid
GB/T 2790-1995 Adhesives, 180°peel strength test method for a flexible-bonded-to-rigid test specimen assembly $60.00 immediately valid
GB/T 27902-2011 Technical rules for electrical fire simulation experiment $124.00 via email in 1~3 business day valid
GB/T 27903-2011 Fire resistance test for lift landing doors—Methods of measuring integrity,thernal insulation and heat flux $160.00 immediately valid
GB/T 27904-2011 Testing method for fire characteristics of furniture and subassemblies exposed to flaming ignition source $80.00 immediately valid
GB/T 27905.2-2011 Inspection methods for trace and physical evidences from fire scene - Part 2: Sheet glass $90.00 via email in 1~3 business day valid
GB/T 27905.3-2011 Inspection methods for trace and physical evidences from fire scene—Part 3:Ferrous metalwork $100.00 via email in 1~3 business day valid
GB/T 27905.4-2011 Inspection methods for trace and physical evidences from fire scene - Part 4: Electrical wire $124.00 via email in 1~3 business day valid
GB/T 27905.5-2011 Inspection methods for trace and physical evidences from fire scene - Part 5: Small power induction motor $90.00 via email in 1~3 business day valid
GB/T 27906-2011 Life-saving projectile launcher $180.00 via email in 1~3 business day valid
GB/T 27908-2011 Performance improvement of management systems—Guidelines for procedures and methodology for continual improvement $540.00 via email in 1~5 business day abolished
GB/T 27909.1-2011 Banking - Key management (retail) - Part 1: Principles $270.00 via email in 1~3 business day valid
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