Re: Usage of chemistry abbreviation for Normal (N)

["Peter Neilson" <neilson -at- windstream -dot- net>]

It seems to vary. I'd go with the space. The theory goes like this:
- Some people use "no space"for SI units.
- N is not an SI unit.
- Under certain uses "N" is ambiguous. 0.4MNH4OH is bad enough, but  
0.4NNH4OH ???
- Modern typography allows various sorts of spaces. If you use plain text  
for a chemistry journal, they already have a style guide and have skilled  
typesetters who will make your single 0X20 space right, according to their  
standards.
- If you are preparing in TEX or some similar typographic system, a thin  
non-breaking space might be appropriate.
- The client's standard should apply unless it is overwhelmingly bad and  
needs your services as a writer-of-standards.
- Do not expect enthusiastic response to any suggestion that the client's  
standards are broken and need repair.

If you do not know the standard that will be applied by your client, use a  
space. Try to avoid writing 0.6
N where the N appears on the next line, even if it necessitates writing so  
that the normality in question falls near the beginning of a paragraph.

When in need of moral support, look up the compound dioxygen difluoride,  
FOOF.

On Thu, 03 Sep 2020 13:43:00 -0400, Emoto <emoto1 -at- gmail -dot- com> wrote: