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The SI includes conventions for expressing unit names and abbreviations (often referred to as symbols) and for displaying them in text. | The SI unit names are written lowercase (eg, kilogram) when spelled out, except for Celsius (as in “degrees Celsius”), which is capitalized. Abbreviations or symbols for SI units also are written lowercase, with the following exceptions: ▪ Abbreviations derived from a proper name should be capitalized (eg, N for newton, K for kelvin, A for ampere), although nonabbreviated SI unit names derived from a proper name are not capitalized (eg, newtons, amperes). ▪ An uppercase letter L is
Expressing Unit Names and Symbols
Expressing Unit Names and Symbols
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