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1 ( ) 170-0005 3-11-8 TEL. 03(5927)8356 FAX. 03(5927)8357e-mail : web : 1 (5927)8356 (5927)8357 e-mail: ( ) Light Stable Isotopic ISC enrichememt (5927)8356 (5927)8357 e-mail: ( ) Amount ratios n(54Fe)/n(56Fe): 70(27) n(57Fe)/n(56Fe): 096(72) n(58Fe)/n(56Fe): 071(29)54Fe: (23)56Fe: (24)57Fe: (66)58Fe: (28)Isotope amount fraction ( 100) n(10B)/n(11B): 26(32)IRMM012 1M HCl solution ( Cr kg-1 5mL )IRMM014 Iron metal (50mg/wire 250mg/cubes )Amount ratios n(50Cr)/n(52Cr): 86(10) n(53Cr)/n(52Cr): 39(15) n(54Cr)/n(52Cr) 22(06)53Cr.

2 (11)52Cr: (2)50Cr: (9)54Cr: (5)197Pt: (82)195Pt: (14)Isotope amount fraction ( 100) n(198Pt)/n(195Pt): 8(24)Amount ratiosIRMM011 H3BO3 solid (1g)IRMM009 HNO3 solution190Pt: 7(12)192Pt: (16)194Pt: (25)24Mg: (25)25Mg: (9)26Mg: (19) n(26Mg)/n(24Mg): 32(26) n(25Mg)/n(24Mg): 63(13)Isotope amount fraction ( 100)Amount ratios10B: (20)11B: (20)Isotope amount fraction ( 100) n(194Pt)/n(195Pt): (11) n(196Pt)/n(195Pt): 4(82)Amount ratios196 (10)IRMM010 Pt metal (30mg/wire)Isotope amount fraction ( 100)Amount ratios n(6Li)/n(7Li): (12)IRMM016 Li2O3 solid (1g)Isotope amount fraction ( 100)IRMM015 Li2O3 solid (50mg)Isotope amount fraction ( 100)6Li: (20)7Li: (20)IRMM017 Silicon solid (50mg)Isotope amount fraction ( 100)28Si: (66)29Si: 59(58)30Si: 64(70)6Li: (24)7Li: (24)Amount ratios n(6Li)/n(7Li): 12 (28)Amount ratios n(29Si)/n(28Si): 771(66) n(30Si)/n(28Si): 488(78) (5927)8356 (5927)8357 e-mail: ( ) Isotope amount fraction ( 100)28Si: 40(70)29Si: 57(42)30Si: 03(58)IRMM018 SiO2 solid (5g)Amount ratios n(29Si)/n(28Si): 844(48) n(30Si)/n(28Si).

3 585(66)M(B) boronERM-AE102 Boric Acid Solution Analyten(10B)/n(11B) boronn(11B)/n(B) mg/kg ( g/molm(10B)/m(B) boronw(B) boronn(10B)/n(11B) boron boronm(11B)/m(B) boronn(10B)/n(B) (11B)/n(B) Boric Acid Solution AnalyteValuew(B) boron1000 mg/kg ( M(B) g/moln(10B)/n(B) (11B)/m(B) (10B)/n(B) (11B)/n(B) Boric Acid Solution AnalyteValuen(10B)/n(11B) mol/molw(B) boron1000 mg/kg ( m(11B)/m(B) (10B)/m(B) (B) g/moln(11B)/n(B) (10B)/n(B) Boric Acid Solution AnalyteValuen(10B)/n(11B) mol/molm(10B)/m(B) (B) g/molw(B) boron999 mg/kg ( ERM-AE633 63Cu mol/gERM-AE637 24Mg mol/gm(11B)/m(B) 26Mg mol/g (5927)8356 (5927)8357 e-mail: ( ) 2-NitrophenolPhenol-d6 NaphthaleneBenzo[a] [a] ,4-dichlorophenolBis(2-ethylhexyl)phthal ateBis(2-ethylhexyl) , MS)% GC)% of MoleculesTotally Labelled Proirity Pollutants SRM1586 (set of 6) 37Cl chlorideERM-AE640 202Hg mol/gERM-AE641 35Cl mol/gERM-AE639 202Hg mol/gERM-AE701 mol/gERM-AE647 63Cu mol/gERM-AE649 205Tl thalliumn(41Ca)/n(40Ca) mol%n(41Ca)/n(40Ca) mol%n(41Ca)/n(40Ca) mol%n(41Ca)/n(40Ca) mol%n(41Ca)/n(40Ca) mol%n(41Ca)/n(40Ca) mol%n(41Ca)/n(40Ca) mol%n(41Ca)/n(40Ca) mol% (5927)8356 (5927)8357 e-mail: ( ) REthanol LEthanol MEthanol x 10-5(D/H)I(D/H) x x x Abundance Raito Ethanol BCR123 (Set of 3) x x (5927)8356 (5927)8357 e-mail.))

4 ( ) (see Certificate of Analysis for uncertainties and other details)d2 HVSMOW6Li/7 Lid13 CVPDBd15 NAird18 OVSMOWd18 OVPDBd30 SiNBS28d34 SVCDT 17 OVSMOWx 1000x 1000x 1000x 1000x 1000x 1000x10000*ref.[1] 0*ref.[1]-190ref.[2] ref[2]-428* ref[1] *ref.[1]-66ref[2]+ ref.[6]-118ref.[3] [5] -100 ref.[2] [5] [5] [5] ref.[5] + ref.[15] [14] + * ref.[15] * ref.[16] ** ref.[4] * ref.[5] + ref.[15] [14] + ref.[2] '0* ref.[12] + ^ ref.[7] + [7] + ref.[7] + [8] ref.[17] + [7] [7] + [10] *ref.[11] + [12] Cat#855085518552855385548555853885398540 8541854285438544854585358536853785468547 85488549 NBS22-oil (1mL)IAEA-CH-7-polyethylene foil (x mg)USGS24-graphite( ) IAEA-CH-6-sucrose (1g)VSMOW-water(20mL)GISP-water (20mL)SLAP-water (20mL)NBS30-biotite (2g)IAEA-N-1-ammonium sulfate ( )IAEA-N-2-ammonium sulfate( ) IAEA-NO-3-potassium nitrate ( ) USGS25-ammonium sulfate ( )NBS 18-carbonatite ( )NBS 19-limestone ( )5L-SVEC-lithiumcarbonate ( )NBS28-silica sand(optical) ( )IAEA-S-2-silversulfide ( )USGS26-ammoniumsulfate ( )NSVEC-gaseousnitrogen (1 tube300mmol)IAEA-S-4-Soufre de Lacq ( )IAEA-S-1-silversulfide ( ) (5927)8356 (5927)8357 e-mail: ( ) + [13] + ref.

5 [8] + [12] +180^ ref.[7] '+ ref.[8] -138(CH4) ref.[3] (CH4) ref.[3] -176(CH4) ref.[3] (CH4) ref.[3] [5] [15] [14] [5] [15] [14] [5] [15] [14] ref.[8] [8] ref.[17] [12] [1,2] [12] ref.[1,2] * Exact values defining the delta scale^ Interim consensus values used for scale normalization**Absolute isotope amount ratioReferences 1 Gonfiantini, R., 1978, Nature, v. 271, p. 534-536. 2 Gonfiantini, R., Stichler, W., and Rozanski, K., 1995, IAEA-TECDOC-825, p. 13-29. 3 Hut, G., 1987, Consultants' group meeting, IAEA, 42 p. 4 Qi, , Taylor, , Berglund, M., and De Bi vre, P., 1997a, Int. J Mass Spectrom. Ion Processes, v. 171, p. 263-268. 5 Coplen, , Brand, , Gehre, M., Gr ning, M., Meijer, H. A. J., Toman, B, and Verkouteren, R. M., 2006, Anal. Chem., v. 78, p. 2439-2441. 6 Coplen, T. B., Kendall, C., and Hopple, J.

6 , 1983, Nature, v. 302, p. 236-238. 7 B hlke, , and Coplen, , 1995, IAEA-TECDOC-825, p. 51-66. 8 B hlke, J. K., Mroczkowski, S. J., and Coplen, T. B., 2003, Rapid Commun. Mass Spectrom., v. 17, p. 1835-1846. 9 Qi, H., Coplen, , Geilmann, H., Brand, , and B hlke, , 2003, Rapid Commun. Mass Spectrom., v. 17, p. Qi, , and Coplen, Tyler B., 2003, Chem. Geol., v. 199, p. Robinson, , 1995, IAEA-TECDOC-825, p. Coplen, et al., 2001, Water-Resources Investigations Report 01-4222, 98 Zhang, (Chang, ) and Ding, T., 1989, Chin. Sci. Bull., v. 34, p. Verkouteren, R. M.; Klinedinst, , 2004, NIST Special Publication 260-149, Calculated from data in ref 14 and relation between VPDB and VSMOW in reference 12 (page 36).16 Gonfiantini, R., 1984, Report to the Director General, IAEA, 77 p. 17 Michalski, G., Savarino, Bohlke, Thiemens, 2002, Anal.

7 Chem., Vol. 74, pp ,PetrochemicalOrigin (2 tubes)NBS123-sphalerite ( )NBS127-bariumsulfate ( )USGS32-potassiumnitrate ( )L-glutamic AcidUSGS41 ( )CO2-Biogenic,Modern BiomassOrigin (2 tubes)USGS34 potassiumnitrate ( )USGS35 sodiumnitrate ( )L-glutamic AcidUSGS40 (1g)NGS1-natural gas(coal origin) (<2g)NGS3- natural gas(biogenic) (<2g)CO2-HeavyPaleomarine Origin(2 tubes) (5927)8356 (5927)8357 e-mail: ( ) 50Cr, atom % Standard for Chlomium SRM979 powderAbsolute Abundance Ratio, 54Cr/52 CrIsotope Composition 107Ag, atom % , Silver assay, weight % Composition 108Ag, atom % Atomic Composition Bromine-79, atom % Composition Bromine-81, atom % Standard for Silver SRM978a powderAbsolute Abundance Ratio, 107 Standard for Bromine SRM977 powderAbsolute Abundance Ratio, 79 Composition Chlorine-37, atom % WeightIsotope Composition Chlorine-35, atom % , atom % , atom % Standard for Chlorine SRM975a Abundance Ratio, 35 , acidimetric assay, mass Abundance Ratio, 10 Boric Acid SRM952 powderBoron-11, atom % , acidimetric assay, mass fractionAbsolute Abundance Ratio, 10B/11 BBoron-10, atom % Acid SRM951 100g Abundance Ratio, 50Cr/52 CrAbsolute Abundance Ratio, 53Cr/52Cr 52Cr.

8 Atom % 54Cr, atom % Standard for Magnesium SRM980 chipsAbsolute Abundance Ratio, 25 53Cr, atom % Abundance Ratio, 26 24Mg, atom % 25Mg, atom % 26Mg, atom % (5927)8356 (5927)8357 e-mail: ( ) Atomic Weight of 41K, atom % 40K, atom % Lead Isotopic Standard SRM981 1g wireAtomic Abundance Ratio, 204 Abundance Ratio, 207 206Pb, atom % 207Pb, atom % Abundance Ratio, 208 204Pb, atom % Abundance Ratio, 207 Abundance Ratio, 208 208Pb, atom % Lead Isotopic Standard SRM982 1g wireAtomic Abundance Ratio, 204 207Pb, atom % 208Pb, atom % 204Pb, atom % 206Pb, atom % Abundance Ratio, 208 204Pb, atom % Lead Isotopic Standard SRM983 1g wireAtomic Abundance Ratio, 204 Abundance Ratio, 207 208Pb, atom % Chloride assay and isotopic SRM984 1g powderRbCl rubidium assay, weight % 206Pb, atom % 207Pb, atom % abundance raito, 85 39K, atom % Abundance Ratio, 40 Abundance Ratio, 39K/41 KAssay-Isotopic Standard for Potassium SRM985 1g powder (5927)8356 (5927)

9 8357 e-mail: ( ) Isotopic Standard for Nickel SRM986 powderAbsolute Abundance Ratio, 58 Abundance Ratio, 61Ni/60 NiAbsolute Abundance Ratio, 62Ni/60 NiIsotopic Composition, 61Ni Atomic %Absolute Abundance Ratio, 64 Carbonate Standard SRM987 1g powderAbsolute Abundance Ratio, 88 Composition, 62Ni Atomic %Isotopic Composition, 64Ni Atomic %Atomic Weight of Composition, 58Ni Atomic %Isotopic Composition, 60Ni Atomic %Absolute Abundance Ratio, 87Sr/86 SrAbsolute Abundance Ratio, 84Sr/86 Srthat yields atom % of 88 Srthat yields atom % of Standard for Rhenium SRM989 ribbonAbsolute Abundance Ratio, 185 yields atom % of 86 Srthat yields atom % of 84Sr 185 Rhenium, atom % 187 Rhenium, atom % Weight of Assay-Isotopic Standard SRM991 (15g of solution) of LeadIsotopic Composition 204Pb, atom %< Composition 204Pb, atom % Composition 204Pb, atom % Composition 71Ga, atom % Weight of Gallium( ) Composition 204Pb, atom %Isotopic Standard for Gallium SRM994 Abundance Ratio, 69 Weight of Composition 69Ga, atom % (5927)8356 (5927)8357 e-mail.

10 ( ) Solution g/mL( C)Information Values for Isotopic Composition of Blank and Density of the SRM solution 129I/127I Isotope Raito, Blank16 x 10-15 129I/127I Isotope Raito, Level x 10-10 Thallium Atomic Standard for Thallium SRM997 Isotopic Compositions and Uncertainties for 129I/127I Isotopic StandardIodine-129 Isotopic Standard (Low Level) SRM3230 (4x5mL, plus blank)Absolute Abundance Ratio, 205 Composition 203Tl, atom % 129I/127I Isotope Raito, Level x 10-6 129I/127I Isotope Raito, Level x 10-8 Isotopic Composition 205Tl, atom % 129I/127I Isotope Raito, Level x 10-12 Iodine-129 Isotopic Standard (High Level) SRM3231 (4x5mL, plus blank)Certified Isotopic Compositions and Uncertainties for 129I/127I Isotopic StandardInformation Values for Isotopic Composition of Blank and Density of the SRM solution 129I/127I Isotope Raito, Blank16 x 10-15 Solution g/mL( C) (5927)8356 (5927)8357 e-mail.