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7.53 Abbreviations
The oblique is used in certain abbreviations:
- a/c
- account
- A/Director
- Acting Director
- c/o
- care of
- i/c
- in charge
- n/a
- not applicable
- w/o
- without
It can be used as a symbol for per:
- km/h
- N/m2
Do not use the oblique to represent per more than once in a single expression:
- 2.7 m·s-2 not 2.7 m/s/s
Do not use it with expressions of quantity written out in full:
- metres per second not metres/second
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