This standard governs the shape, size, spacing, and appearance of letters, numerals, and symbols. It applies to various lettering methods, including the use of stencils, freehand writing, and digital CAD applications. DS ISO 1 draws its core design directly from two key parts of this standard:
DS ISO 1 is a purpose-driven sans-serif optimized for legibility and clarity in signage and instructional contexts. Apply it with consistent hierarchy, attention to contrast, and correct licensing to get reliable, professional results.
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As new technologies emerge, it's likely that the DS ISO 1 font will continue to evolve. With the rise of modern design tools and font creation software, new variations and adaptations of the font are likely to emerge.
Furthermore, mathematical operators and functions such as sin, cos, ln, and exp are always written in upright type. This prevents confusion between a variable named "sin" and the sine function. Perhaps most critically for technical accuracy, the symbols for units of measurement are always upright. For instance, "5 kg" denotes five kilograms. If the "kg" were italicized, it could be misinterpreted as the multiplication of variables $k$ and $g$ ($k \times g$), leading to potentially disastrous calculation errors. This standard governs the shape, size, spacing, and
The DS ISO 1 font has been used in a variety of contexts, including:
Perhaps the most famous technical font, Isonorm was created in 1980 by the International Standards Organization (ISO) and published by the type foundry Linotype (now owned by Monotype). Its simple, clean, and geometric design with rounded ends makes it highly legible by both humans and machines, making it a great choice for drafting, architectural purposes, and technical charts. DS ISO 1 can be seen as Dassault's practical, proprietary implementation of the same ISO ideals. Apply it with consistent hierarchy, attention to contrast,
: While the base ISO 3098 standard does not define a "bold" style, DS ISO 1 includes Bold and Bold Italic variants by adding 50% thickness to the regular style to improve visual hierarchy in complex drawings. Functional Features
Used for standard annotations, notes, and general title block information.
The world of technical fonts has a rich history, and DS ISO 1 is not the only player. Understanding its relatives helps clarify its unique role.