>From "Guide for the Use of the International System of Units (SI)" p.23 NIST Special Publication 811 by Barry N. Taylor:
Sect. 8.1 Time and rotational frequency "...Although there is no universally accepted symbol for the year , Ref. [6:ISO 31-5] suggests the symbol a." Marcus asked in USMA 27237: > Dear colleagues, > > I've tried and tried and tried, but to no avail. I'm attempting to > substantiate that the correct symbol for year is simply 'y', and not > (for instance) 'yr'. > > Can anyone here give me a reference to that effect? Preferrably from > BIPM itself. I surfed there today for like an hour without ANY > success. > > And, yes, I'm *desperate* because I need to provide this reference by > the end of today!... > :-S Sorry about the urgency... > > Any help is very appreciated. > > Marcus >
