EN 16726:2015
(Main)Gas infrastructure - Quality of gas - Group H
Gas infrastructure - Quality of gas - Group H
This European standard specifies gas quality characteristics, parameters and their limits, for gases classified as group H that are to be transmitted, injected into and from storages, distributed and utilized.
NOTE For information on gas families and gas groups see EN 437.
This European standard does not cover gases conveyed on isolated networks.
For biomethane, additional requirements indicated in prEN 16723 1 apply.
Gasinfrastruktur - Beschaffenheit von Gas - Gruppe H
Diese Europäische Norm legt die Kenngrößen und Parameter, sowie die zugehörigen Grenzwerte für die Beschaffenheit von als Gruppe H eingeteilten Gasen fest, die zu transportieren, in Speicher ein und aus Speichern auszuspeisen, zu verteilen und zu verbrauchen sind.
ANMERKUNG Für Informationen zu Gasfamilien und Gasgruppen, siehe EN 437.
Diese Norm umfasst keine Gase, die in isolierten Netzen befördert werden.
Für Biomethan gelten die zusätzlichen Anforderungen nach prEN 16723 1.
Infrastructures gazières - Qualité du gaz - Groupe H
La présente Norme européenne spécifie les caractéristiques et les paramètres de qualité des gaz ainsi que leurs limites, pour des gaz classés dans le groupe H qui sont destinés à être transportés, injectés dans et depuis les stockages, distribués et utilisés.
NOTE Pour toute information sur les familles de gaz et groupes de gaz, voir l'EN 437.
La présente norme ne couvre pas les gaz transportés par des réseaux isolés.
Pour le biométhane, les exigences complémentaires indiquées dans l’EN 16723-1 s’appliquent.
Infrastruktura za plin - Kakovost plina - Skupina H
Ta osnutek evropskega standarda določa lastnosti in zahteve za pline, ki vstopajo v omrežja za prenos plinov skupine H druge družine, kot so opredeljeni v standardu EN 437, in je namenjen uporabi na mejnih točkah ter sčasoma tudi za omrežja in infrastrukturo za prenos takih plinov. Posebne zahteve za biometan niso vključene, ker so podane v standardu prEN ... (CEN/TC 408) OPOMBA: Znano je, da lahko nekatere specifikacije nekaterim deležnikom povzročijo tehnične ali operativne težave, čeprav so v splošnem sprejemljive. Taki vplivi so opredeljeni v standardu in zainteresirane stranke naj bi se skladno z zakonodajnimi organi dogovorile, kako zmanjšati njihov obseg.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Infrastruktura za plin - Kakovost plina - Skupina HGasinfrastruktur - Beschaffenheit von Gas - Gruppe HInfrastructure gazière - Qualité du gaz - Groupe HGas infrastructure - Quality of gas - Group H75.060Zemeljski plinNatural gasICS:Ta slovenski standard je istoveten z:EN 16726:2015SIST EN 16726:2016en,fr,de01-marec-2016SIST EN 16726:2016SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16726
December
t r s w ICS
y wä r x r English Version
Gas infrastructure æ Quality of gas æ Group H Infrastructure gazière æ Qualité du gaz æ Groupe H
Gasinfrastruktur æ Beschaffenheit von Gas æ Gruppe HThis European Standard was approved by CEN on
t v October
t r s wä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s w CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x y t xã t r s w ESIST EN 16726:2016
Calculation of methane number of gaseous fuels for engines . 9 A.1 Introduction . 9 A.2 Calculation of methane number . 9 A.3 Example 1: 2H-gas . 10 A.4 Example 2: enriched biomethane . 16 A.5 Example 3: 2H-gas with hydrogen addition . 17 Annex B (informative)
Sulfur . 31 B.1 General . 31 B.2 Total sulfur from Odorants . 31 Annex C (informative)
Water dew point and hydrocarbon dew point . 35 C.1 Water dew point . 35 C.2 Hydrocarbon dew point . 35 Annex D (informative)
Background for not including a Wobbe Index range into this standard . 36 D.1 General . 36 D.2 A common European Wobbe index range . 38 Annex E (informative)
Hydrogen - Admissible Concentrations in natural gas systems . 39 Annex F (informative)
Sampling . 40 Annex G (informative)
A–deviations . 41 Bibliography . 46 SIST EN 16726:2016
based on normal reference condition 25°C /0°C (for information) Reference standards for test methodsd (informative) Min. Max. Min. Max. Relative density no unit 0,555 0,700 0,555 0,700 EN ISO 6976,
EN ISO 15970 Total sulfur without odorant mg/m3 not applicable 20a not applicable 21a EN ISO 6326-5,
EN ISO 19739 For sulfur in high pressure networks and on interconnection points the maximum acceptable sulfur content for conveyance is 20 mg/m3, where in high pressure networks non-odorized gas is current practice. However, for existing practices with respect to transmission of odorized gas between high pressure networks higher sulfur content value up to 30 mg/m3 may be accepted. NOTE On distribution networks the odorization is considered as a national safety issue. Some information about sulfur odorant content is given in Annex B. Hydrogen sulphide + Carbonyl sulphide
(as sulfur) mg/m3 not applicable 5a not applicable 5a EN ISO 6326-1,
EN ISO 6326-3,
EN ISO 19739 SIST EN 16726:2016
based on normal reference condition 25°C /0°C (for information) Reference standards for test methodsd (informative) Min. Max. Min. Max. Mercaptan sulfur without odorant (as sulfur) mg/m3 not applicable 6a not applicable 6a EN ISO 6326-3,
EN ISO 19739 Oxygen mol/mol not applicable 0,001 % or 1 %
(see below) not applicable 0,001 % or 1 %
(see below) EN ISO 6974-3,
EN ISO 6974-6,
EN ISO 6975 At network entry points and interconnection points the mole fraction of oxygen shall be no more than 0,001 %, expressed as a moving 24 hour average. However, where the gas can be demonstrated not to flow to installations sensitive to higher levels of oxygen, e.g. underground storage systems, a higher limit of up to 1 % may be applied. Carbon dioxide mol/mol not applicable 2,5 % or 4 %
see below not applicable 2,5 % or 4 %
see below EN ISO 6974 parts 1 to 6, EN ISO 6975 At network entry points and interconnection points the mole fraction of carbon dioxide shall be no more than 2,5 %. However, w
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