NIST has just updated its metric writing guide Writing with SI (Metric System) Units
Some points it raises:
• The guide emphasises American spelling:
>NIST guides use American spelling. All units and prefixes should be spelled as shown in this guide. Examples: meter, liter, and deka, NOT metre, litre, and deca.
• The guide mentions that "degree centigrade" and "micron" are not to be used and recommends "metric ton" rather than "tonne".
• Under the heading Paper Sizes it says "The International System of Units (SI) is about measuring the weight or dimensions of objects, not changing their sizes. The U.S. paper industry uses several customary paper formats that all have metric dimensions." So they are not promoting the ISO 216 metric paper series.
To be known as TITS and ASS
