Mathematical elements for maps of scale 1 : 500 000

I. Geographic coordinates grid.

Meridians are drawn through 30 ' from 0 ° up to 76 °

                                        through 1 ° from 76 ° up to 84 °

(Meridians on a map are represented by direct lines).

Code - 13110000, type (character of localization) - line, characteristic - 19. Geodetic coordinates - longitude L.

Parallels are drawn through 20 ' (everywhere).

(Parallels are drawn by broken lines with points of a break in places of crossing with meridians).

Code - 13120000, type - line, characteristic - 19. Geodetic coordinates - latitude B.

Dashes of meridians lines are drawn on lines of parallels inside a sheet, through 5 ', by length of 3,5 mm (dashes on an internal frame are not drawn).

Code - 13430000, type - line, characteristic - 19. Geodetic coordinates - longitude L.

Dashes of parallels lines are drawn by length 3,5 mm on lines of meridians, through 5 ' (dashes on an internal frame of a sheet are not drawn).  

Code - 13440000, type - line, characteristic - 19. Geodetic coordinates - latitude B.

II. Rectangular (kilometer) grid.

Ticks of a rectangular grid out of frames of sheets through 2 cm (10 km on district). A short line by length of 2,5 mm.

Vertical lines of rectangular grid.

Code - 13210000, type - line, characteristic - 17. Rectangular coordinates - Y.

Horizontal lines of rectangular grid.  

Code - 13220000, type - line, characteristic - 17. Rectangular coordinates - X.