iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
CEN

EN ISO 16664:2017

(Main)

Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO 16664:2017)

Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO 16664:2017)

ISO 16664:2017 describes factors that may influence the composition of pure gases and homogeneous gas mixtures used for calibration purposes. This document only applies to gases or gas mixtures that are within the "utilization period". It provides the following guidelines for the handling and use of calibration gas mixtures:
-      storage of calibration gas cylinders;
-      calibration gas withdrawal from cylinders;
-      transfer of calibration gas from cylinders to the point of calibration.
It also outlines a method of assessing the stability of a gas mixture, taking into account the gas composition uncertainty given on the certificate and the user's measurement uncertainty.

Gasanalyse - Handhabung von Kalibriergasen und Gasgemischen - Richtlinien (ISO 16664:2017)

Diese Internationale Norm beschreibt Faktoren, die die Zusammensetzung von reinen Gasen und homogenen Gasgemischen, die für Kalibrierzwecke verwendet werden, beeinflussen können. Diese Internationale Norm betrifft ausschließlich Gase und Gasgemische innerhalb ihres „Verwendungszeitraums“ unter besonderer Berücksichtigung von
   der Lagerung von Kalibriergasflaschen;
   der Entnahme von Kalibriergas aus Flaschen;
   dem Transfer von Kalibriergas aus Flaschen zur Kalibrierstelle.
Des Weiteren enthält die Norm eine Kurzbeschreibung eines Verfahrens zur Beurteilung der Stabilität eines Gasgemischs, und sie berücksichtigt die im Zertifikat angegebene Unsicherheit der Zusammensetzung des Gases und die Messunsicherheit des Anwenders.

Analyse des gaz - Mise en oeuvre des gaz et des mélanges de gaz pour étalonnage - Lignes directrices (ISO 16664:2017)

L'ISO 16664:2017 décrit les facteurs susceptibles d'influencer la composition des gaz purs et des mélanges de gaz homogènes utilisés à des fins d'étalonnage. L'ISO 16664:2017 ne s'applique qu'aux gaz ou mélanges de gaz considérés dans les limites de la «période d'utilisation». Il donne les lignes directrices suivantes pour la mise en oeuvre et l'utilisation des mélanges de gaz pour étalonnage.
-      le stockage des bouteilles de gaz d'étalonnage;
-      le soutirage du gaz d'étalonnage des bouteilles;
-      le transfert du gaz d'étalonnage des bouteilles vers le point d'étalonnage.
Il présente également une méthode permettant d'évaluer la stabilité d'un mélange de gaz en tenant compte de l'incertitude de la composition du gaz mentionnée sur le certificat et de l'incertitude de mesure liée à l'utilisateur.

Analiza plinov - Ravnanje s kalibracijskimi plini in plinskimi zmesmi - Smernice (ISO 16664:2017)

Ta dokument opisuje dejavnike, ki lahko vplivajo na sestavo čistih plinov in homogenih plinskih zmesi, ki se uporabljajo za namene kalibracije. Ta dokument se uporablja samo za pline in plinske zmesi znotraj »obdobja uporabe«. Podaja naslednje smernice za ravnanje z zmesmi kalibracijskih plinov in njihovo uporabo:
– skladiščenje jeklenk s kalibracijskimi plini;
– odvzem kalibracijskih plinov iz jeklenk;
– prenos kalibracijskih plinov iz jeklenk do mesta kalibracije.
Poleg tega opredeljuje metodo za ocenjevanje stabilnosti plinskih zmesi ob upoštevanju negotovosti sestave plinov, navedene v potrdilu, in negotovosti uporabnikovih meritev.

General Information

Status
Published
Publication Date
13-Jun-2017
ICS
71.040.40 - Chemical analysis
Technical Committee
CEN/TC 238 - Test gases, test pressures and categories of appliances
Drafting Committee
CEN/TC 238 - Test gases, test pressures and categories of appliances
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
14-Jun-2017
Completion Date
14-Jun-2017
Ref Project
SIST EN ISO 16664:2017 - Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO 16664:2017)

Relations

Replaces
EN ISO 16664:2008 - Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO 16664:2004)
Effective Date
21-Jun-2017

Buy Standard

EN ISO 16664:2017EN ISO 16664:2017
PreviousNext
Standard
EN ISO 16664:2017
English language
24 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 16664:2017
01-september-2017
1DGRPHãþD
SIST EN ISO 16664:2008
Analiza plinov - Ravnanje s kalibracijskimi plini in plinskimi zmesmi - Smernice
(ISO 16664:2017)
Gas analysis - Handling of calibration gases and gas mixtures - Guidelines (ISO
16664:2017)
Gasanalyse - Handhabung von Kalibriergasen und Gasgemischen - Richtlinien (ISO
16664:2017)
Analyse des gaz - Mise en oeuvre des gaz et des mélanges de gaz pour étalonnage -
Lignes directrices (ISO 16664:2017)
Ta slovenski standard je istoveten z: EN ISO 16664:2017
ICS:
71.040.40 Kemijska analiza Chemical analysis
SIST EN ISO 16664:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN ISO 16664:2017

---------------------- Page: 2 ----------------------

SIST EN ISO 16664:2017


EN ISO 16664
EUROPEAN STANDARD

NORME EUROPÉENNE

June 2017
EUROPÄISCHE NORM
ICS 71.040.40 Supersedes EN ISO 16664:2008
English Version

Gas analysis - Handling of calibration gases and gas
mixtures - Guidelines (ISO 16664:2017)
Analyse des gaz - Mise en oeuvre des gaz et des Gasanalyse - Handhabung von Kalibriergasen und
mélanges de gaz pour étalonnage - Lignes directrices Gasgemischen - Richtlinien (ISO 16664:2017)
(ISO 16664:2017)
This European Standard was approved by CEN on 19 September 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16664:2017 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN ISO 16664:2017
EN ISO 16664:2017 (E)
Contents Page
European foreword . 3
2

---------------------- Page: 4 ----------------------

SIST EN ISO 16664:2017
EN ISO 16664:2017 (E)
European foreword
This document (EN ISO 16664:2017) has been prepared by Technical Committee ISO/TC 158 "Analysis
of gases".
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2017, and conflicting national standards
shall be withdrawn at the latest by December 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 16664:2008.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 16664:2017 has been approved by CEN as EN ISO 16664:2017 without any modification.

3

---------------------- Page: 5 ----------------------

SIST EN ISO 16664:2017

---------------------- Page: 6 ----------------------

SIST EN ISO 16664:2017
INTERNATIONAL ISO
STANDARD 16664
Second edition
2017-05
Gas analysis — Handling of calibration
gases and gas mixtures — Guidelines
Analyse des gaz — Mise en oeuvre des gaz et des mélanges de gaz
pour étalonnage — Lignes directrices
Reference number
ISO 16664:2017(E)
©
ISO 2017

-----------
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

CEN
EN ISO 6141:2015/A1:2020(Amendment)
Gas analysis - Contents of certificates for calibration gas mixtures - Amendment 1: Cross reference list to ISO Guide 31:2015 and ISO/IEC 17025:2017 (ISO 6141:2015/Amd 1:2020)
SIST EN ISO 6141:2015/A1:2020
  • Amendment
    8 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 6145-1:2019(Main)
Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 1: General aspects (ISO 6145-1:2019)
SIST EN ISO 6145-1:2019

This document gives a brief overview of each of the dynamic techniques which are described in detail in the subsequent parts of ISO 6145. This document provides basic information to support an informed choice for one or another method for the preparation of calibration gas mixtures. It also describes how these methods can be linked to national measurement standards to establish metrological traceability for the composition of the prepared gas mixtures.
Since all techniques are dynamic and rely on flow rates, this document describes the calibration process by measurement of each individual flow rate generated by the device.
Methods are also provided for assessing the composition of the generated gas mixtures by comparison with an already validated calibration gas mixture.
This document provides general requirements for the use and operation of dynamic methods for gas mixture preparation. It also includes the necessary expressions for calculating the calibration gas composition and its associated uncertainty.
Gas mixtures obtained by these dynamic methods can be used to calibrate or control gas analysers.
The storage of dynamically prepared gas mixtures into bags or cylinders is beyond the scope of this document.

  • Standard
    32 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 6145-7:2018(Main)
Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 7: Thermal mass-flow controllers (ISO 6145-7:2018)
SIST EN ISO 6145-7:2019

ISO 6145 is a series of documents dealing with various dynamic methods used for the preparation of calibration gas mixtures. This document specifies a method for continuous preparation of calibration gas mixtures, from nominally pure gases or gas mixtures by use of thermal mass-flow controllers. The method is applicable to preparation of mixtures of non-reacting species, i.e. those which do not react with any material of construction of the flow path in the thermal mass-flow controller or the ancillary equipment.
If this method is employed for preparation of calibration gas mixtures the optimum performance is as follows: the relative expanded measurement uncertainty U, obtained by multiplying the standard uncertainty by a coverage factor k = 2, is not greater than 2 %.
If pre-mixed gases are used instead of pure gases, mole fractions below 10−6 can be obtained. The measurement of mass flow is not absolute and the flow controller requires independent calibration.
The merits of the method are that a large quantity of the calibration gas mixture can be prepared on a continuous basis and that multi-component mixtures can be prepared as readily as binary mixtures if the appropriate number of thermal mass-flow controllers is utilized.
NOTE       Gas blending systems, based upon thermal mass-flow controllers, and some including the facility of computerization and automatic control, are commercially available.

  • Standard
    21 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 6145-6:2017(Main)
Gas analysis - Preparation of calibration gas mixtures using dynamic methods - Part 6: Critical flow orifices (ISO 6145-6:2017)
SIST EN ISO 6145-6:2017

ISO 6145-6:2017 specifies a method for the dynamic preparation of calibration gas mixtures containing at least two gases (usually one of them is a complementary gas) from pure gases or gas pre-mixtures using critical flow orifices systems.
The method applies principally to the preparation of mixtures of non-reactive gases that do not react with any of the materials forming the gas circuit inside the critical flow orifices system or auxiliary equipment. It has the merit of allowing multi-component mixtures to be prepared as readily as binary mixtures if an appropriate number of critical flow orifices are used.
By selecting appropriate combinations of critical flow orifices, a dilution ratio of 1 × 104 is achievable.
Although it is more particularly applicable to the preparation of gas mixtures at atmospheric pressure, the method also offers the possibility of preparing calibration gas mixtures at pressures greater than atmospheric. The upstream pressure will need to be at least two times higher than downstream pressure.
The range of flow rates covered by this document extends from 1 ml/min to 10 l/min.

  • Standard
    34 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 6142-1:2015(Main)
Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures (ISO 6142-1:2015)
SIST EN ISO 6142-1:2015

ISO 6142-1:2015 specifies a gravimetric method for the preparation of calibration gas mixtures in cylinders with traceable values for the amount-of-substance fraction (amount fraction) of one or more components. This part of ISO 6142 describes a method for calculating the uncertainty associated with the amount fraction of each component. This uncertainty calculation requires the evaluation of the contributions to the uncertainty due to factors including the weighing process, the purity of the components, the stability of the mixture, and the verification of the final mixture.
ISO 6142-1:2015 is only applicable to mixtures of gaseous or totally vaporized components, which may be introduced into the cylinder in the gaseous or liquid state. Both binary and multi-component gas mixtures (including natural-gas type mixtures) are covered by this part of ISO 6142. Methods for the batch production of more than one mixture in a single process are not included in this part of ISO 6142.
ISO 6142-1:2015 requires estimation of the stability of the mixture for its intended life time (maximum storage life), but it is not for use with components that react with each other unintentionally. This part of ISO 6142 also requires the impurities in each parent gas or liquid used in the preparation of the mixture to be assessed and quantified.

  • Standard
    48 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    44 pages
    German language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 6141:2015(Main)
Gas analysis - Contents of certificates for calibration gas mixtures (ISO 6141:2015)
SIST EN ISO 6141:2015

ISO 6141:2015 specifies minimum requirements for the contents of certificates for homogeneous gas mixtures in gas cylinders to be used as calibration gas mixtures. Pure gases, when used as calibration gas mixtures, are also covered by this International Standard. Gases and gas mixtures produced for other purposes are not considered.
The requirements in ISO 6141:2015 deal with the metrological aspects of calibration gas mixtures. Other aspects, such as safety and legislative aspects, are not covered.
Furthermore, it specifies additional information (optional data) recommended for describing a homogeneous gas mixture, supplied under pressure in a cylinder or other container. It does not cover the field of safety-relevant data and related labelling.

  • Standard
    14 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 6145-9:2010(Main)
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 9: Saturation method (ISO 6145-9:2009)
SIST EN ISO 6145-9:2011

ISO 6145-9:2009 is one of a series of International Standards dealing with various dynamic volumetric methods used for the preparation of calibration gas mixtures. This part specifies a method for continuous production of calibration gas mixtures containing one or more readily condensable components. A relative expanded uncertainty of measurement, U, obtained by multiplying the relative combined standard uncertainty by a coverage factor k = 2, of not greater than ±1 %, can be obtained using this method.
Unlike the methods presented in the other parts of ISO 6145, the method described in this part does not require accurate measurement of flow rates since flow rates do not appear in the equations for calculation of the volume fraction.
Readily condensable gases and vapours commonly become adsorbed on surfaces, and it is therefore difficult to prepare stable calibration gas mixtures of accurately known composition, containing such components, by means of static methods. In addition, these calibration gas mixtures cannot be maintained under a pressure near the saturation limit without the occurrence of condensation. The saturation method can be employed to prepare mixtures of this type.

  • Standard
    22 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 6145-5:2010(Main)
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 5: Capillary calibration devices (ISO 6145-5:2009)
SIST EN ISO 6145-5:2011

ISO 6145-5:2009 is one of a series of International Standards dealing with the various dynamic volumetric techniques used for the preparation of calibration gas mixtures. This part specifies a method for the continuous production of calibration gas mixtures from pure gases or gas mixtures using capillary calibration devices in single or multiple combinations (gas dividers).
Single capillary systems can be used to provide gas mixtures where the minor component is in the range of volume fractions from 10-8 to 0,5.
The relative expanded uncertainty of this technique is less than ±2 % (k = 2) relative. This application is used in industrial gas mixing panels for the production of specific gas atmospheres.
Gas dividers can be used to divide gas mixtures prepared from gases or gas mixtures into controlled proportions by volume. These devices are capable of dilutions in the range of volume fractions from 0,000 5 to 0,9 of the primary gas concentration with a relative repeatability of better than 0,5 %.
Traceability of the gas mixtures produced by a gas divider is achieved by comparison of a mixture with gas mixtures related to national or international gas standards. An example is given in Annex A.

  • Standard
    21 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 15796:2008(Main)
Gas analysis - Investigation and treatment of analytical bias (ISO 15796:2005)
SIST EN ISO 15796:2008

ISO 15796:2005 specifies generic methods for detecting and correcting bias (systematic errors) of analytical procedures for the analysis of gases, using reference gas mixtures or reference analytical procedures, as well as for estimating the correction uncertainty.
The main sources of (and parameters affecting) bias of analytical procedures are instrumental drift (time) and matrix interferences (matrix composition). Moreover, bias normally varies with analyte concentration. ISO 15796:2005 therefore establishes protocols for detecting and correcting drift for an analytical system of limited stability, and for investigating and handling bias of a stable analytical system for a specified range of sample composition. These protocols are intended to be used in method development and method validation studies, either separately or sequentially.
ISO 15796:2005 specifies procedures for two options, applicable to systematic effects, as follows:
1) tracing the observed pattern of deviations and correcting for their effect,
2) averaging over their effects and increasing the uncertainty,
where normally the first option entails lower uncertainty at the expense of higher effort.
For the convenience of the user, the methods specified in ISO 15796:2005 are described for procedures of composition analysis, i.e. procedures for measuring the concentration of a specified analyte in a gas mixture. However, they are equally applicable to measurements of physico-chemical properties of a gas or gas mixture relevant to gas analysis, and translation into this subject field is straightforward.

  • Standard
    41 pages
    English language
    sale 10% off
    e-Library read for
    1 day
CEN
EN ISO 6145-10:2008(Main)
Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 10: Permeation method (ISO 6145-10:2002)
SIST EN ISO 6145-10:2008

This part of ISO 6145 specifies a dynamic method using permeation membranes for the preparation of calibration
gas mixtures containing component mole fractions ranging from 10−9 and 10−6. A relative expanded uncertainty of
2,5 % of the component mole fraction can be achieved using this method. In the mole fraction range considered, it
is difficult to maintain some gas mixtures, for example in cylinders, in a stable state. It is therefore desirable to
prepare the calibration gas immediately before use, and to transfer it by the shortest possible path to the place
where it is to be used. This technique has been successfully applied in generating low content calibration gas
mixtures of, for example, sulfur dioxide (SO2), nitrogen dioxide (NO2) and benzene (C6H6) in air.
If the carrier gas flow is measured as a gas mass-flow, the preparation of calibration gas mixtures using permeation
tubes is a dynamic-gravimetric method which gives contents in mole fractions.

  • Standard
    24 pages
    English language
    sale 10% off
    e-Library read for
    1 day