Dioxide-in-NitrogenCarbonforSystemCalibrationGasReferenceScripps

1999ofRevisionStandards:Dioxide-in-airCarbonand

Calibrations1985-1999ofFormulationAlternateAddendum:

ManometerMercuryofVolumeChambercc4ofRe-calibrationafter

by

KeelingD.C.andEmanuele,G.Guenther,R.P.

OceanographyofInstitutionScripps

DiegoSanCalifornia,ofUniversity

92093CAJolla,La

2002February,

ContentsofTable

1.....................................................................................BackgroundandIntroduction1.

3Volumes..............................................................................PlenumofRecalibration2.

4................................ManometerElectronictheofVolumeChamberofCalibration3.

COArchivedofMeasurements4. 2 theofVolumetheInfertoSamples

5.......................................................................................CMMtheofChambercc4

9......................CMMtheofChambercc4theofVolumesInferredofComparison5.

11.............ScaleX99BEquations:CalibrationCubicofFormulationAlternativeAn6.

12...................................................................................................................Conclusion7.

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he u

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respectively).2000,April,10and6,4,for

CMMtheofChambercc4theofVolumesInferredofComparison5.

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cc4theofmeasurementsdirectTheA1.Figureinaslinehorizontalboldaas

1990,1988,1985-1986,inmadewere(2)MethodbyCMMtheofvolumechamber

1998-1999.and1993-1994,

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EC

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efer

ence

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es

From

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ct M

easu

rem

ents

U

sing

Ple

num

s

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

1995

1996

1997

1998

1999

3.78

53.

786

3.78

73.

788

3.78

93.

790

3.79

13.

792

3.79

33.

794

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53.

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800

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804

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5

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CMM Volume (cc)

3.78

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790

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796

3.79

73.

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3.80

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804

3.80

5

-10-

-11-

level.significantaatnotdo1998-1999inthose

ScaleX99BEquations:CalibrationCubicofFormulationAlternativeAn6.

cc4theofvolumethedeterminingofmethodsthreeallindicates,A2FigureAs

activitiescalibratingwhentimea1990,to1985fromwellagreeCMMtheofchamber

evidencetheaswellasaccount,intoagreementthisTakingfrequent.especiallywere

whichscale,X99Bthescale,calibrationalternativeanhereproposewecited,already

averagethedatum,aasuse,Wechamber.cc4theforvolumeinvariantanassumes

1985-86,inmadewerethatchambercc4theofcalibrationsvolumedirect51theof

21,and18pp.report,maintheof6sectionand5.1Tables(see1990and1988,

withcalibratedplenumsonbasedcc,3.79593volume,averageThisrespectively).

cc")("5000largetheofvolumedeterminedwellthewithcombinedwhenmercury,

report),main5,sectionseecc,(5015.091974inmeasuredCMM,theofchamber

CMM.thefor1321.176ofratiovolumechambercc4tochambercc5000ainresults

cc4variableinferredanwhichtoreportmaintheindatumaasadoptedisratioThis

thisofApplication6).sectionreport,(mainanchoredis1985aftertimeoverchamber

scale,X99Btheasperiod1999to1985thetoratiovolumemanometricinvariant

inlistedthosefromfractionsmoledeterminedmanometricallyindifferencesinresults

cali-tousedequationscalibrationcubicthehenceandreportmaintheof9.5Table

periodtheforscaleX99BtheforcoefficientscubicThemixtures.gasotherbrate

7.1Tableinlistedscale,X99Atheforcoefficientstheofmodificationsas1985-1999

ofratiothebycoefficienteachmultiplyingbycalculatedbeenhavereport,maintheof

thetoreportmaintheof6.4Tableinlistedratiovolumemanometricapplicablethe

cubictheofcoefficientsthelistsA4Table1321.176.ratio,volumetime-invariant

CObothforscale,X99Bthedefinethatequationscalibration 2-in-N2 COand 2-in-air

A4Tbl1999.to1985fromperiodtheforgases,referenceprimary

-12-

EquationsCalibrationAnalyzerInfraredofCoefficientsA4.TableScaleX99BCase):Volumecc4(Invariant

CCentral 0 C1 C2 C3DateYear × 104 × 107

N1985 2 6.71973E-074.01667E-040.53242087.509285Jul296.97208E-074.04841E-040.54080487.415285Jul29Air1985

N1987 2 6.41282E-074.44785E-040.51637889.354087Dec66.87526E-074.25385E-040.53223988.498987Dec6Air1987

N1989 2 7.52792E-073.41814E-040.54756786.305889Mar37.90742E-073.26690E-040.56265085.545989Mar3Air1989

N1990 2 7.17593E-073.87620E-040.53372787.140490May227.42200E-073.85630E-040.54457886.817590May22Air1990

N1993 2 8.16473E-073.08876E-040.56604281.721693May209.33726E-072.15485E-040.60651578.345593May20Air1993

N1995 2 7.92101E-073.57975E-040.53994286.079295Jul99.08357E-072.71783E-040.57601783.430095Jul9Air1995

N1997 2 7.44683E-074.10200E-040.51961289.224097Aug197.45508E-074.37675E-040.51987190.063897Aug19Air1997

N1999 2 8.27709E-073.43424E-040.53814087.306099Jan18.60887E-073.38266E-040.54864387.162799Jan1Air1999

form:theofpolynomials,cubicareequationsCalibrationNote:C=X 0 C+ 1 C+J 2 J2 C+ 3 J3

reportmaintheinpresentedadjustmentvolumethe1985,topriorperiodtheFor

dis-datumcc3.79593thetoreferencedalreadyis30)p.report,mainof7(Equation

theisscaleX99Bthefordatapre-1985theofcalibrationtheThereforeabove.cussed

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fromperiodtheforcomparedisgases,referencenatural-airforscale,X99BtheA5,

report.maintheinreportedasscale,calibrationX99Athewith1999to1984

Conclusion7.

chambercc4theofvolumeeffectivethethathereevidencepresentedhaveWe

cali-cubicofseriesrevisedA1999.to1985fromconstantremainedhasCMMtheof

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-13-

-14-

formulationX99Apreviousawithcomparedandformulatedisvolume,chamber

COofconcentrationsmeasuredmanometricallythethatassumedisitwhere 2-in-air

COand 2-in-N2 ofAdoptionconstant.remainedaverageongasesreferenceprimary

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toproportionallessormoregas,referenceprimaryofcylinderstheofallinoccurred

CO2 fraction.mole