NIST unit rules and conventions
paul at anastrophe.com
Wed Sep 19 19:55:41 UTC 2018
NIST has a page of guidelines for formatting units in documents -
I am conforming unit presentation within the various documents I'm
editing to use the guidelines, mostly #15:
There is a space between the numerical value and unit symbol, even
when the value is used in an adjectival sense, except in the case of
superscript units for plane angle.
proper: a 25 kg sphere
an angle of 2° 3' 4"
If the spelled-out name of a unit is used, the normal
rules of English apply: "a roll of 35-millimeter film."
improper: a 25-kg sphere
an angle of 2 ° 3 ' 4 "
So for example, where there are instances of 50ppm, 8-ms, I'm updating
them to 50 ppm, 8 ms.
Uniformity of presentation seems like a desireable goal - are there any
objections to following these particular guidelines?
There's a handful of other conventions codified that may turn up needing
conformance, which I'll also conform where I find them - where reasonable.
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