SIS F7

The SIS F7 paper size establishes compact dimensions of just 85 mm x 120 mm, enclosing a mere 0.01 square meters. Wedged between lesser used SIS F6 and ISO B6, it represents one of Sweden's generally unsuccessful 20th century attempts to expand format options.

Lacking broad recognition, the niche SIS F7 does not benefit from entrenched alternate monikers. But occasional Swedish references as “F sju” (F seven) persist informally.

Conceivable applications could include large diagrams, folding charts and graphs, academic posters, and marketing displays where SIS F6 still disappoints. But everyday practical use is extremely minimal for the unfamiliar SIS F7.

The SIS F7 emerged from Sweden's early 1900s endeavor inserting granular sizes amidst ISO's prevailing options. The vision was enabling subtle scaling of content across sheets. But the attempt was undermined by economic obstacles, lack of global uptake, and resistance to shifting norms. So today SIS F7 remains an obsolete relic, its backstory illustrating the resilience of existing standards despite reform efforts.