ASTM_D_1071_-_83_2008.pdf

Designation:D107183(Reapproved 2008)Standard Test Methods forVolumetric Measurement of Gaseous Fuel Samples1This standard is issued under the fixed designation D1071;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover the volumetric measuring ofgaseous fuel samples,including liquefied petroleum gases,inthe gaseous state at normal temperatures and pressures.Theapparatus selected covers a sufficient variety of types so thatone or more of the methods prescribed may be used forlaboratory,control,reference,or in fact any purpose where it isdesired to know the quantity of gaseous fuel or fuel samplesunder consideration.The various types of apparatus are listedin Table 1.1.2This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Terminology and Units of Measurement2.1 Definitions:Units of MeasurementAll measurementsshall be expressed in inch-pound units(that is:foot,pound(mass),second,and degrees Fahrenheit);or metric units(thatis:metre,kilogram,second,and degrees Celsius).2.2 Standard Conditions,at which gaseous fuel samplesshall be measured,or to which such measurements shall bereferred,are as follows:2.2.1 Inch-pound Units:(1)A temperature of 60.0F,(2)A pressure of 14.73 psia.(3)Free of water vapor or a condition of complete water-vapor saturation as specified per individual contract betweeninterested parties.2.2.2 SI Units:(1)A temperature of 288.15K(15C).(2)A pressure of 101.325 kPa(absolute).(3)Free of water vapor or a condition of complete water-vapor saturation as specified per individual contract betweeninterested parties.2.3 Standard Volume:2.3.1 Standard Cubic Foot of Gas is that quantity of gaswhich will fill a space of 1.000 ft3when under the standardconditions(2.2.1).2.3.2 Standard Cubic Metre of Gas is that quantity of gaswhich will fill a space of 1.000 m3when under the standardconditions(2.2.2).2.4 Temperature Term for Volume ReductionsFor the pur-pose of referring a volume of gaseous fuel from one tempera-ture to another temperature(that is,in applying Charles law),the temperature terms shall be obtained by adding 459.67 toeach temperature in degrees Fahrenheit for the inch-poundunits or 273.15 to each temperature in degrees Celsius for theSI units.2.5 At the present state of the art,metric gas provers andmeters are not routinely available in the United States.Throughout the remainder of this procedure,the inch-poundunits are used.Those having access to metric metering equip-ment are encouraged to apply the standard conditions ex-pressed in 2.2.2.NOTE1The SI conditions given here represent a“hard”metrication,in that the reference temperature and the reference pressure have beenchanged.Thus,amounts of gas given in metric units should always bereferred to the SI standard conditions and the amounts given in inch-poundunits should always be referred to the inch-pound standard conditions.3.Significance and Use3.1 The knowledge of the volume of samples used in a testis necessary for meaningful results.Validity of the volumemeasurement equipment and procedures must be assured foraccurate results.4.Apparatus4.1 The various types of apparatus used for the measure-ment of gaseous fuel samples may be grouped in three classes,as shown in Table 1.References to the portions of thesemethods covering the capacity and range of operatingconditions,and the calibration,of each type are given in Table1.CAPACITY OF APPARATUS AND RANGE OFOPERATING CONDITIONS5.Cubic-Foot Bottles,Standards,and So Forth5.1 The capacities of cubic-foot bottles,standards,and soforth,are indicated by their names.A portable cubic-foot1These test methods are under the jurisdiction of ASTM Committee D03 onGaseous Fuels and are the direct responsibility of Subcommittee D03.01 onCollection and Measurement of Gaseous Samples.Current edition approved Dec.1,2008.Published February 2009.Originallyapproved in 1954.Last previous edition approved in 2003 as D1071 83(2003).DOI:10.1520/D1071-83R08.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 standard of the Stillman type is shown in Fig.1 and a fractionalcubic-foot bottle is shown in Fig.2.The temperatures andpressures at which these types of apparatus are used must bevery close to those existing in the room in which they arelocated.Since these containers are generally used as standardsfor the testing of other gas-measuring devices,the rate at whichthey may be operated is of little or no importance.It willalways be low,and probably nonuniform,and in