PART 1 U.K.General

Units U.K.

6.  The non-SI units listed in column 2 of the Table must be used either in lieu of, or in addition to, SI units(1) as primary units of measurement under this Order.

Table

Non-SI units for use with SI units

Specific quantity	Non-SI Unit	Symbol	Definition (in terms of SI units)
Mass	tonne	T	1 t = 103 kg
Time	hour	H	1 h = 60 min = 3,600 s
Volume	litre	L	1 L = 1 dm3 = 10-3 m3

Commencement Information

I1 Art. 6 in force at 26.5.2021, see art. 1

(1)

The International System of Units (SI), commonly known as the metric system, is the international standard for measurement.