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Power Plant Instrumentation and Control Handbook by Ajay Kumar Debnath, Swapan Basu

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Appendix I

Process and Mechanical Standard Table

Standard Prefixes

TABLE AP1/A

Conversion Tables of Units

Coded prefix pMeaning of prefixed unitMultiply byCoded prefixMeaning of prefixed unitMultiply by
dadeka10ddeci101
hhecto100ccenti102
kkilo1000mmilli103
Mmega106μmicro106
Ggiga109nnano109
Ttera1012ppico1012
Ppeta1015ffemto1015
Eexa1018aatto1018
Zzeta1021zzepto1021
Yyotta1024yyocto1024

image

Standard Units

TABLE AP1/B.1

Standard Units for Temperature

CelsiusCK 273.15(F 32) × 5/9(R 491.67) × 5/9
RankineRK × 9/5F + 459.67C × 9/5 + 491.67
FahrenheitFR 459.67C × 9/5 +32K × 9/5 459.67
KelvinKC + 273.15R × 5/9(F + 459.67) × 5/9

TABLE AP1/B.2

Standard Units for ...

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