Requirements for variables in the tables are specified in «Variables and Formulas design».
Names for tables are necessary. Numbering is done through the text of the paper. Availability of table references in the text is mandatory, even if the table is located in the text immediately after the mention of it. Design pattern is < (Table 5). >, not <(see Table 5)>.
Availability of units is mandatory (for example: V, Wt). If all the variables in the table are measured in the same units, they may be indicated in the title of the table or in the caption.