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1 66 Process of Chemical Analysis How to Express Quantities. 1SI base quantity SI base unit (quantity name) ) ( ) quantitysymbol) unit name) ) ( ) unit symbol) length l,h,r,x metre m mass m kilogram)kg time, duration T second s electric current I,i ampere A thermodynamictemperature T kelvin K amountof substance n mole mol luminousintensity Iv candela cd66 1 quantity reference VIM 3 1) VIM 2 SI SI coherent system 10 SI JIS Z 8203 2000 SI JIS Z 8202 0 2000 0 JIS Z 8202 8 2000 8 JIS Z8301 2008 JIS K0050 2005 JIS SI 8 )2)

2 2SI SI 2 1 1 1 SI mol 3) http 12C 1mol 12 g 67 2 ( ) A m2 V m3 v m/s s m 1 r kg/m3 c mol/m3 r,g kg/m3 n 11 3 22 SI SI rad m/m 1 sr m2/m2 1 Hz s 1 Nmkgs 2 Pa N/m2 m 1kg s 2 JNm m2kg s 2 WJ/s m2kg s 3 CsA VW/A m2kg s 3A 1 FC/V m 2kg 1s4A2 QV/A m2kg s 3A 2 SA/V m 2kg 1s3A2 Wb V s m2kg s 2A 1 TWb/m2 kg s 2A 1 HWb/A m2kg s 2A 2 CK lm cd sr cd lx lm/m2 m 2cd Bq s 1 Gy J/kg m2s 2 Sv J/kg m2s 2 kat s 1mol67 2 2 2 22 3 m2kg s 2 J K 3 C SI

3 K Nm N m ms m s ms m / ms m/s ms 1 ms 1 m s 1 mkg/(s3A mkgs 3A 1 mkgs 3/A mkg/s3/A mkg/s3A mkg/s3A 1 g mol 1,g/mol, g mol 1 mol g 1) 1 mol/g) 1 mol 1/g 1 mol 1g mol 1 g 2 3SI SI SI SI SI SI SI SI 4 L l 1 ISO IEC l L l 4 Np B dB SI SI bar 68 4SI SI SI min1 min 60 s h1h 60 min 3600 s d1d 24 h 86 400 s 1 (p/180)rad 1 (1/60) (p/10 800)rad 1 (1/60) (p/648 000)rad ha1 ha 1hm2 104m2 L l1L 1l 1dm3 t1t 103kg eV Da u1u 1Da ua 5SI 101 deca)da 10 1 deci)d102 hecto)h10 2 centi)c103 kilo)k10 3 milli)m106 mega)M10 6 micro)n109 giga)G10 9 nano)n1012 tera)T10 12 pico)p1015 peta)P10 15 femto)

4 F1018 exa)E10 18 atto)a1021 zetta)Z10 21 zepto)z1024 yotta)Y10 24 yocto)y68 mmHg SI SI SI 4 SI SI SI SI BIPM website 2 4 SI 5 SI SI 10 103m kilometre km 10 6V microvolt nV 20 V/cm 2000 V/m 2kV/m 103V/m 10n n 10 mmol/mL nmol/mL SI mol/L mmol/L 10 9m nm mnm pg 10 3ng mng kg k g nkg mg dm3 dm dm3 (10 1m)

5 3 10 3m3 10 1m3 kg/m3 kg/kL g/L g/cm3 kg/dm3 3 3 1 SI SI s 1 J/K 1 C/kg kg s second sec cm3 cc m/s mps SI 2m/s 6969 2 2 metres per second 3 2 Cm,p pH pH pH 1 ISO 31, IUPAC Green Book4) Imax 10 A I 10 Amax w(Pb) 10 6 10 6w/w 1 ab,ab,a b,a b,a/b,ab,ab 1,ab 1,a b 1,a b 1 a/b c a/b)

6 C a/(b c 3 3 v v 50 m/s 180 km/h v 50 180 f 12 34 5 JIS Z 8301 2008 C t C T 273 K T/K 273 T ln(p/MPa 103K/T kK/T 103 T/K) 1 tempera-ture/ C temperature T/K T/ C 53 m/s) s,(53 m/s) ( s),(53 m/s)( s / 20 m)/(5s),(a/b)/c,a/(bc 3 4 1 0 3 4 1 3 x k 1 u(x F 533 99(24)))

7 104C/mol 1 IUPAC SI mg/kg mg/kg mg/kg k 2 7070 m 1m73cm SI 35 24 20 C kPa, 0 C JIS K 0050 JIS Z 8202 0 2000 15 25 C 15 C 25 C 15 25) C 3 5 1 1 1 JIS K 0050 2005 SI 8 1 1 w/w x/ 100x Cr 40 FeCr 40 JISZ8202 0 2000 ppm pphm ppb SI 10 6 ppm ppb ppt billion 109 trillion 1012 106 ppt ppm

8 XB ur(xB) mg/kg JIS Z 8202 0 2000 5ng/g mL/m3 mol/mol g/g kg/kg 2ng/g 2ng/g 2 10 9 2ng/g 1 one 1 n 1 1 rad 1 sr SI 1 1 one 10 JIS K 8005 2005 / SI ppm ppb ppt ppq vol vol vol ppm ppm vol ppb ppb vol ppt ppt vol ppq ppq pH 5) SI 71 6 ) ) )mol/L 20 C)g/mL HNO360 61 CH3 COOH a b JIS a b 71 4 JIS Z 0050 2005 6 JIS 6 a b a b a b a b 70 5 SI ampere A C degree Celsius degree d Celsius C milli gram milli gram milligram

9 Pascal second pascal second squared cubed metre per second squared square cubic square centimetre kilogram per cubic metre a1kQresister a35 millimetre film 6 BIPM 50 cL 500 mL SI URL 2010 12 27 1)International vocabulary of metrology Basic and generalconcepts and associated terms(VIM), 3rd edition, JCGM200 : 2008 VIM 3 ).2)SI 8 ).3) Today,8,(10),23(2008)( ).4) 3 2009 IUPAC Green Book 5) http Akiharu HIOKI 305 8563 1 1 1 3 3 9 E mail : aki hioki