CEN Standars Collection 71/370: CEN SS N21 - Gaseous Fuels & Combustible Gas

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full list 28.10.2017:

EN ISO 6141:2015 Gas analysis - Contents of certificates for calibration gas mixtures (ISO 6141:2015)
EN ISO 6142-1:2015 Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures (ISO 6142-1:2015)
EN ISO 6143:2006 Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures (ISO 6143:2001)
EN ISO 6144:2006 Gas analysis - Preparation of calibration gas mixtures - Static volumetric method (ISO 6144:2003)
EN ISO 6145-1:2008 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 1: Methods of calibration (ISO 6145-1:2003)
EN ISO 6145-4:2008 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 4: Continuous syringe injection method (ISO 6145-4:2004)
EN ISO 6145-5:2010 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 5: Capillary calibration devices (ISO 6145-5:2009)
EN ISO 6145-6:2017 Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 6: Critical flow orifices (ISO 6145-6:2017)
EN ISO 6145-7:2010 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 7: Thermal mass-flow controllers (ISO 6145-7:2009)
EN ISO 6145-8:2008 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 8: Diffusion method (ISO 6145-8:2005)
EN ISO 6145-9:2010 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 9: Saturation method (ISO 6145-9:2009)
EN ISO 6145-10:2008 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 10: Permeation method (ISO 6145-10:2002)
EN ISO 6145-11:2008 Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 11: Electrochemical generation (ISO 6145-11:2005)
EN ISO 6326-1:2009 Natural gas - Determination of sulfur compounds - Part 1: General introduction (ISO 6326-1:2007)
EN ISO 6326-3:1997 Natural gas - Determination of sulfur compounds - Part 3: Determination of hydrogen sulfide* mercaptan sulfur and carbonyl sulfide sulfur by potentiometry (ISO 6326-3:1989)
EN ISO 6326-5:1997 Natural gas - Determination of sulfur compounds - Part 5: Lingener combustion method (ISO 6326-5:1989)
EN ISO 6327:2008 Gas analysis - Determination of the water dew point of natural gas - Cooled surface condensation hygrometers (ISO 6327:1981)
EN ISO 6570:2004 Natural gas - Determination of potential hydrocarbon liquid content - Gravimetric methods (ISO 6570:2001)
EN ISO 6974-1:2012 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition (ISO 6974-1:2012)
EN ISO 6974-1:2012/AC:2012 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition - Technical Corrigendum 1 (ISO 6974-1:2012/Cor 1:2012)
EN ISO 6974-2:2012 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations (ISO 6974-2:2012)
EN ISO 6974-3:2001 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen* helium* oxygen* nitrogen* carbon dioxide and hydrocarbons up to C8 using two packed columns (ISO 6974-3:2000)
EN ISO 6974-4:2001 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 (ISO 6974-4:200
EN ISO 6974-5:2014 Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 5: Isothermal method for nitrogen* carbon dioxide* C1 to C5 hydrocarbons and C6+ hydrocarbons (ISO 6974-5:2014)
EN ISO 6974-6:2005 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 (ISO 6974-6:2002)
EN ISO 6975:2005 Natural gas - Extended analysis - Gas-chromatographic method (ISO 6975:1997)
EN ISO 6976:2005 Natural gas - Calculation of calorific values* density* relative density and Wobbe index from composition (ISO 6976:1995 including Corrigendum 1:1997* Corrigendum 2:1997 and Corrigendum 3:1999)
EN ISO 6978-1:2005 Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO 6978-1:2003 )
EN ISO 6978-2:2005 Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003)
EN ISO 6978-2:2005/AC:2016 Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy - Technical Corrigendum 2 (ISO 6978-2:2003/Cor 2:2006)
EN ISO 10101-1:1998 Natural gas - Determination of water by the Karl Fischer method - Part 1: Introduction (ISO 10101-1:1993)
EN ISO 10101-2:1998 Natural gas - Determination of water by the Karl Fischer method - Part 2: Titration procedure (ISO 10101-2:1993)
EN ISO 10101-3:1998 Natural gas - Determination of water by the Karl Fischer method - Part 3: Coulometric procedure (ISO 10101-3:1993)
EN ISO 10715:2000 Natural gas - Sampling guidelines (ISO 10715:1997)
EN ISO 10723:2012 Natural gas - Performance evaluation for analytical systems (ISO 10723:2012)
EN ISO 11541:2002 Natural gas - Determination of water content at high pressure (ISO 11541:1997)
EN ISO 12213-1:2009 Natural gas - Calculation of compression factor - Part 1: Introduction and guidelines (ISO 12213-1:2006)
EN ISO 12213-2:2009 Natural gas - Calculation of compression factor - Part 2: Calculation using molar-composition analysis (ISO 12213-2:2006)
EN ISO 12213-3:2009 Natural gas - Calculation of compression factor - Part 3: Calculation using physical properties (ISO 12213-3:2006)
EN ISO 13443:2005 Natural gas - Standard reference conditions (ISO 13443:1996 including Corrigendum 1:1997)
EN ISO 13686:2013 Natural gas - Quality designation (ISO 13686:2013)
EN ISO 13734:2013 Natural gas - Organic components used as odorants - Requirements and test methods (ISO 13734:2013)
EN ISO 14111:1999 Natural gas - Guidelines to traceability in analysis (ISO 14111:1997)
EN ISO 14532:2005 Natural gas - Vocabulary (ISO 14532:2001 including Corrigendum 1:2002)
EN ISO 14912:2006 Gas analysis - Conversion of gas mixture composition data (ISO 14912:2003)
EN ISO 15112:2014 Natural gas - Energy determination (ISO 15112:2011)
EN ISO 15403-1:2008 Natural gas - Natural gas for use as a compressed fuel for vehicles - Part 1: Designation of the quality (ISO 15403-1:2006)
EN ISO 15796:2008 Gas analysis - Investigation and treatment of analytical bias (ISO 15796:2005)
EN ISO 15970:2014 Natural gas - Measurement of properties - Volumetric properties: density* pressure* temperature and compression factor (ISO 15970:2008)
EN ISO 15971:2014 Natural gas - Measurement of properties - Calorific value and Wobbe index (ISO 15971:2008)
EN ISO 16664:2017 Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO 16664:2017)
EN ISO 16960:2014 Natural gas - Determination of sulfur compounds - Determination of total sulfur by oxidative microcoulometry method (ISO 16960:2014)
EN ISO 18453:2005 Natural gas - Correlation between water content and water dew point (ISO 18453:2004)
EN ISO 19739:2005 Natural gas - Determination of sulfur compounds using gas chromatography (ISO 19739:2004)
EN ISO 19739:2005/AC:2009 Natural gas - Determination of sulfur compounds using gas chromatography (ISO 19739:2004/Cor 1:2009)
CEN ISO/TR 24094:2007 Analysis of natural gas - Validation methods for gaseous reference materials (ISO/TR 24094:2006)


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