| 屬性 | | unit | indicates the units used for the measurement, usually
using the standard symbol for the desired units.| 狀態 | 非必備的 | | 資料類型 | | | 被推薦的值包含: | - m
- (metre) SI base unit of length
- kg
- (kilogram) SI base unit of mass
- s
- (second) SI base unit of time
- Hz
- (hertz) SI unit of frequency
- Pa
- (pascal) SI unit of pressure or stress
- Ω
- (ohm) SI unit of electric resistance
- L
- (litre) 1 dm³
- t
- (tonne) 10³ kg
- ha
- (hectare) 1 hm²
- Å
- (ångström) 10⁻¹⁰ m
- mL
- (millilitre)
- cm
- (centimetre)
- dB
- (decibel) see remarks, below
- kbit
- (kilobit) 10³ or 1000 bits
- Kibit
- (kibibit) 2¹⁰ or 1024 bits
- kB
- (kilobyte) 10³ or 1000 bytes
- KiB
- (kibibyte) 2¹⁰ or 1024 bytes
- MB
- (megabyte) 10⁶ or 1 000 000 bytes
- MiB
- (mebibyte) 2²⁰ or 1 048 576 bytes
| | 註 | If the measurement being represented is not expressed in a
particular unit, but rather is a number of discrete items, the
unit count should be used, or the unit
attribute may be left unspecified. |
| | quantity | specifies the number of the specified units that
comprise the measurement | | commodity | indicates the substance that is being measured| 狀態 | 非必備的 | | 資料類型 | 1–∞ occurrences of 以空白鍵隔開 | | 註 | In general, when the commodity is made of discrete
entities, the plural form should be used, even when the
measurement is of only one of them. |
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