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ISO 6145-2:2014

Current
Current

The latest, up-to-date edition.

Gas analysis Preparation of calibration gas mixtures using dynamic methods Part 2: Piston pumps
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

18-07-2014

ISO 6145 comprises a series of International Standards dealing with various dynamic methods used for the preparation of calibration gas mixtures. ISO 6145-2:2014 describes a method and preparation system using piston pumps. The mixture composition and its associated uncertainty are based on calibration of the piston pumps by dimensional measurements.

The calibration gas mixtures prepared using this method consist of two or more components, prepared from pure gases or other gas mixtures using gas-mixing pumps. Such gas-mixing pumps contain at least two piston pumps, each driven with a defined ratio of strokes, and appropriate accessories for gas feeding and mixture homogenization.

ISO 6145-2:2014 is applicable only to mixtures of gaseous or totally vaporized components including corrosive gases, as long as these components neither react with each other nor with the wetted surfaces of the mixing pump. The use of gas mixtures as parent gases is covered as well. Multi-component gas mixtures and multi-step dilution procedures are included in this International Standard as they are considered to be special cases of the preparation of two-component mixtures.

ISO 6145-2:2014 describes a method of preparing calibration gas mixtures whose composition is expressed in volume fractions. The necessary equations and associated uncertainty evaluation to express the gas composition in amount?of?substance fractions are given in Annex A.

With this method, provided that sufficient quality assurance and control measures are taken, calibration gas mixtures can be prepared with a relative expanded uncertainty of 0,5 % (coverage factor k = 2) in the volume fraction. Numerical examples showing that under specified conditions smaller uncertainties are attainable are given in Annexes B through D.

Using this method, dilution ratios of 1:10 000 can be achieved in discrete increments. Lower fractions (down to 1 108) can be achieved by multi-stage dilution or by the use of gas mixtures as input gases. Final mixture flow rates of 5 l/h to 500 l/h can be realized depending on the equipment used.

DevelopmentNote
Supersedes ISO/DIS 6145-2. (07/2014)
DocumentType
Standard
Pages
30
PublisherName
International Organization for Standardization
Status
Current
Supersedes

Standards Relationship
IS 16249 : Part 2 : 2019 Identical
SAC GB/T 5275-2 : 2014 Identical
NEN ISO 6145-2 : 2014 Identical
BS ISO 6145-2:2014 Identical
UNE 77243-2:2004 Identical

13/30267536 DC : 0 BS EN 60079-29-1 ED 2.0 - EXPLOSIVE ATMOSPHERES - PART 29-1: GAS DETECTORS - PERFORMANCE REQUIREMENTS OF DETECTORS FOR FLAMMABLE GASES
DIN EN ISO 6145-1:2008-11 GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 1: METHODS OF CALIBRATION
BS EN 13528-3:2003 Ambient air quality. Diffusive samplers for the determination of concentrations of gases and vapours. Requirements and test methods Guide to selection, use and maintenance
EN 13528-3:2003 Ambient air quality - Diffusive samplers for the determination of concentrations of gases and vapours - Requirements and test methods - Part 3: Guide to selection, use and maintenance
UNI EN ISO 6145-1 : 2009 GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 1: METHODS OF CALIBRATION
EN 60079-29-1:2016 Explosive atmospheres - Part 29-1: Gas detectors - Performance requirements of detectors for flammable gases
UNE-EN 60079-29-1:2017 Explosive atmospheres - Part 29-1: Gas detectors - Performance requirements of detectors for flammable gases
I.S. EN 14042:2003 WORKPLACE ATMOSPHERES - GUIDE FOR THE APPLICATION AND USE OF PROCEDURES FOR THE ASSESSMENT OF EXPOSURE TO CHEMICAL AND BIOLOGICAL AGENTS
VDI 2100 Blatt 3:2011-10 Determination of gaseous compounds in ambient air - Determination of indoor air pollutants - Gas chromatographic determination of organic compounds - Active sampling by accumulation on adsorbents - Thermal desorption
VDE 0400-40-1 : 2000 AMD 1 2004 SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - PART 1: GENERAL REQUIREMENTS AND TEST METHODS
17/30321967 DC : 0 BS ISO/IEC 20435-1 - WORKPLACE ATMOSPHERES - PART 1: GAS DETECTORS - PERFORMANCE REQUIREMENTS OF DETECTORS FOR TOXIC GASES
DIN EN 50241-1 : 2000 AMD 1 2004 SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - PART 1: GENERAL REQUIREMENTS AND TEST METHODS
ISO/TS 14167:2003 Gas analysis General quality assurance aspects in the use of calibration gas mixtures - Guidelines
BS EN 50241-1:1999 Specification for open path apparatus for the detection of combustible or toxic gases and vapours General requirements and test methods
04/30112677 DC : 0 IEC 61779-1 ED.2 - ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF FLAMMABLE GASES - PART 1: GENERAL REQUIREMENTS AND TEST METHODS
BS EN 60079-29-1:2007 Explosive atmospheres Gas detectors. Performance requirements of detectors for flammable gases
BS EN ISO 6145-1:2008 Gas analysis. Preparation of calibration gas mixtures using dynamic volumetric methods Methods of calibration
ISO 6145-1:2003 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 1: Methods of calibration
EN 50241-1 : 99 AMD 1 2004 SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - PART 1: GENERAL REQUIREMENTS AND TEST METHODS
17/30345272 DC : 0 BS ISO 14167 - GAS ANALYSIS - GENERAL QUALITY ASPECTS AND METROLOGICAL TRACEABILITY OF CALIBRATION GAS MIXTURES
CSA C22.2 NO. 60079-29-1:17 EXPLOSIVE ATMOSPHERES - PART 29-1: GAS DETECTORS - PERFORMANCE REQUIREMENTS OF DETECTORS FOR FLAMMABLE GASES
BS EN 14042:2003 Workplace atmospheres. Guide for the application and use of procedures for the assessment of exposure to chemical and biological agents
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 14042:2003 Workplace atmospheres - Guide for the application and use of procedures for the assessment of exposure to chemical and biological agents
ISO 12039:2001 Stationary source emissions Determination of the mass concentration of carbon monoxide, carbon dioxide and oxygen in flue gas Performance characteristics of automated measuring systems
BS ISO 6145-1 : 2003 GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 1: METHODS OF CALIBRATION
17/30323887 DC : 0 BS EN 62990-131 - WORKPLACE ATMOSPHERES - PART 1: GAS DETECTORS - PERFORMANCE REQUIREMENTS OF DETECTORS FOR TOXIC GASES
I.S. EN 60079-29-1:2016 EXPLOSIVE ATMOSPHERES - PART 29-1: GAS DETECTORS - PERFORMANCE REQUIREMENTS OF DETECTORS FOR FLAMMABLE GASES
I.S. EN ISO 6145-1:2008 GAS ANALYSIS - PREPARATION OF CALIBRATION GAS MIXTURES USING DYNAMIC VOLUMETRIC METHODS - PART 1: METHODS OF CALIBRATION
I.S. EN 50241-1:1999 SPECIFICATION FOR OPEN PATH APPARATUS FOR THE DETECTION OF COMBUSTIBLE OR TOXIC GASES AND VAPOURS - GENERAL REQUIREMENTS AND TEST METHODS
DIN EN 13528-3:2004-04 Ambient air quality - Diffuse samplers for the determination of concentrations of gases and vapours - Part 3: Guide to selection, use and maintenance
DIN EN 14042:2003-07 WORKPLACE ATMOSPHERES - GUIDE FOR THE APPLICATION AND USE OF PROCEDURES FOR THE ASSESSMENT OF EXPOSURE TO CHEMICAL AND BIOLOGICAL AGENTS

ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
ISO 6143:2001 Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures
ISO 6142:2001 Gas analysis Preparation of calibration gas mixtures Gravimetric method
ISO 14912:2003 Gas analysis — Conversion of gas mixture composition data
ISO 7504:2015 Gas analysis Vocabulary
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)

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