DIN EN 12261-2007 煤气表.涡轮式煤气表

标准号：DIN EN 12261-2007
中文标准名称：煤气表.涡轮式煤气表
英文标准名称：Gas meters - Turbine gas meters(includes Amendment A1:2006) ; English version of DIN EN 12261:2007-07
标准类型：Q82
发布日期：1999/12/31 12:00:00
实施日期：2007/7/1 12:00:00
中国标准分类号：Q82
国际标准分类号：91.140.40
引用标准：EN 119000;EN ISO 5167-1-1995;EN ISO 9001;ISO 3;ISO 2768-1-1989;ISO guide to the expression of uncertainty in measurement;EN 437;EN 10204;EN 50014;EN 50020;EN 60529;EN 60947-5-6
适用范围：This European Standard specifies the measuring conditions, requirements and tests for the construction,performance and safety of class 1,0 axial and radial turbine gas meters with mechanical indicatingdevices, herein after referred to as a meter(s), having in-line pipe connections for gas flow measurement.This European Standard applies to turbine gas meters used to measure the volume of fuel gases of the1st and 2nd gas families, the composition of which is specified in EN 437, at maximum working pressuresup to 420 bar, actual flow rates up to 25 000 m3/h over a gas temperature range of at least 40 K and for aclimatic environmental temperature range of at least 50 K.This standard applies to meters that are installed in locations with vibration and shocks of Iowsignificance and in~ closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidityor, if specified by the manufacturer,~ open locations (outdoor without any covering) with condensing humidity or with non-condensing humidityand in locations with electromagnetic disturbances.Unless otherwise specified in this standard:~ all pressures used are gauge;~ all influence quantities, except the one under test, are kept relatively constant at their reference value.Clauses 1 to 7 and annex B are for design and type testing only, with the exception of 6.2.2.3, 6.2.3.3,6.6.1.1.2 and 6.6.2.2.2. Annex C may be used to provide guidance on periodic tests during use. Clause 8and annexes D and E are for each meter prior to dispatch. Annex A shall be used for both type andindividual testing.