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ICS75.060
E24GB
NationalStandardofthePeoplesRepublicofChina
GB17820-2018
ReplaceGB178202012
Naturalgas
天然气
(EnglishTrαnslαtion)
Issuedate:2018-11-19Implementationdate:2019-06-01
IssuedbyStateAdministrationfo「MarketRegulation
StandardizationAdministrationofthePeoplesRepublicofChina
GB17820-2018
Foreword
SAC/TC244isinchargeofthisEnglishtranslation.IncaseofanydoubtaboutthecontentsofEnglish
translation,theChineseoriginalshallbeconsideredauthoritative.
Thetechnicalcontentsofthisstandardarecompulsory.
ThisstandardisdraftedinaccordancewiththerulesgivenintheGB/T1.1-2009Directivesfor
standardization-Part1:Structureanddraftingofstandards.
ThisstandardreplacesGB17820-2012NaturalGasinwhole.Thefollowingtechnicaldeviationshave
beenmadewithrespecttoGB17820-2012:
-Qualityindexesofcalo「ificvalue,totalsulfur,hydrogensulfideandcarbondioxideforthegases
ofClassesIandIIaremodified;fo「thegasenteringlong-distancepipeline,thesuperio「caloric
valueismodifiedf「om31.4MJ/m3to34.0MJ/m飞thetotalsulfu「from200mg/m3to20mg/m飞
andthehydrogensulfidefrom20mg/m3to6mg/m3(seeTable1);
一Technicalindexofwaterdewpointiscancelled.In“5TransmissionandUtilization”,itisadded
withthestatementthat“thereshouldbenoliquidwaterandliquidhydrocarboninnaturalgasun-
de「thedeliveryp「essureandtemperatureconditions
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