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This standard includes definitions for physical quantities and units commonly used in applied science and technology, and related terms that concern systems of measurement. Particular emphasis is placed on the International System of Units (SI).

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The standard covers letter symbols for units of measurement. The symbols given are intended for all applications, including use in text and equations, in graphs and diagrams, and on panels, labels, and nameplates.

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This standard covers letter symbols for units of measurement. The symbols given are intended for all applications, including use in text and equations, in graphs and diagrams, and on panels, labels, and nameplates.

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