Acronyms, abbreviations, and initialisms are discouraged from use, except for well-known and accepted units of measurement and some well-recognized terms.
Numerals (1, 2, 3, etc.) should be used in all writing, except when:
When dates are provided in the text, use numerals for day and year, and write out the month, e.g., April 2, 2010.
If using dates in a table, you may use numerals for the month (e.g., 4/2/2010).
Use SI (Le Système International d'Unités) standards for writing measurements. Numbers are always written in plain text, there is a space after the number and before the unit, and never a period after the unit (unless it ends a sentence).
Do not include commas in longer numbers (e.g., 1600 km, not 1,600 km).
When an appendix is included in an article, it is cited in the text like a table or figure.
Example: This kitchen is rated a 5 on the Hazard Scale (Appendix 1).
Format an appendix the same way you would start a reference list, with "Appendix" at the top left of a new page. If there is more than one appendix, start each on a new page. Appendices are numbered and organized by the order they are referred to in the body of the article.
Example:
Appendix 1
Hazard Scale