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116MV_RR_CNG_0029JJG160—1992VerificationRegulationoftheStandardPlatinumResistanceThermometerJJG160-892345230419.527tWr(t)C0fi?=91Ci(t/481)/481it/D0i?=91Di(Wr(t)2.64)/1.64i117W8(t)W(t)Wr(t)W8(t)a8W(t)1b8W(t)12Wr(t)——0419.527Wr(t)1CiDi——199022W(t)——W(t)——a8b8——W(29.7646)1.11807(5)W(29.7646)RGaRtpW(29.7646)RGa/RtpW(29.7646)1.11807W(100)1.39254(6)W(100)100R(100)RtpW(100)R(100)/RtpRtpW(100)WSnWZn1186/91215121825*WZnWSnW(100)W(419.527)W(231.928)W(100)4.3(450)100hRtpWZn2RtpWZn48101711910i?=n1(xix)2/(n1)xi——x——n——0.51.0100/2.01.32.61.53.013a1416WZnRtpb450630100hcWZnRtpWZnRtp45026301512014WZn14.1WZn23K10min0.2K0.15K/min23K10min60.3mK0.5mKRZn14.2420()RZn1mK2mK14.3RZn16RtpWZnWZnRZn/Rtp(8)14.4WZnWZnWZn4105WZn2.04.0WSn1.83.6W(100)/2.415(mm/V)WZn16Rtp24hRtpRtpRtp(12.91108cm1h)h——RtpRtpRtp1211mAR12mAR21mARR(R2-R1)/3(10)ttR/0.003988Rtp(11)18WSn18.3RSn1mK2mK18.4RSn17RtpWSnWSnRSn/Rtp(12)18.5WSnWSnWSn419W(100)19.1()RtRtpWtWtRt/Rtp(13)19.2100W(100)W(100)WtKW(100)*Wt*(14)W(100)*——W(100)Wt*——K——12219.3W(100)W(100)W(100)42020.1WZnWSna8b8a8(WZn1)2WSn(WSn1)2WZn/Dzb8(WSn1)WZn(WZn1)WSn/DzDz(WSn1)(WZn1)2(WSn1)2(WZn1)(17)20.2WZnW(100)a8b8a8{(WZn1)2W(100)W(100)12WZn}/D1b8(W(100)1)WZn(WZn1)W(100)/D1D1W(100)1(WZn1)2(WZn1)W(100)1220.3W(100)WZnWSn(0.1mK)WSn1.36417225W(100)0.2281927264WZn-0.593392388(21)20.4WSnWZnW(100)W(100)0.7330452588WSn0.1672755962WZn0.434983477(22)20.5WSnWZnWGaWGa0.26672336WSn0.076459546WZn0.80970391(23)20.6W(100)WGaWGa0.300781742W(100)0.69921826(24)2122RtpWGaW(100)WSnWZna8b81mKWZnRtp23RtpW(100)WGaWSnWZna8b8(110-7)(110-6)mK(3)242Rtp5mK12310mK