Shoe size "Footwear - Sizing - Vocabulary and terminology"; currently in development are companion standards ISO/TS 19409 "Footwear - Sizing - Measurement of last dimensions" and ISO/TS 19410 "Footwear - Sizing - Inshoe measurement". The adult shoe sizes are calculated from typical last length, which is converted from foot length in mm by adding an allowance of two shoe sizes: where formula_13 is foot length in mm. Direct conversion between adult UK, European and Mondopoint shoe size systems is derived as follows: Exact foot lengths may contain repeating decimals because the formulas include division by 3; in practice, approximate interval steps of
ISO/TC 211 Geographic information/Geomatics "Geographic information -- Web Feature Service" ISO 19143:2010 "Geographic information -- Filter encoding" ISO 19144-1:2009 "Geographic information -- Classification systems -- Part 1: Classification system structure" ISO 19144-2:2012 "Geographic information - Classification systems -- Part 2: Land Cover Meta Language (LCML)" ISO/DIS 19145 "Geographic information -- Registry of representations of geographic point location" ISO 19146:2010 "Geographic information -- Cross-domain vocabularies" ISO/CD 19147 "Geographic information -- Location based services -- Transfer Nodes" ISO 19148:2012 "Geographic information -- Linear referencing" ISO 19149:2011 "Geographic information -- Rights expression language for geographic information -- GeoREL " ISO/PRF TS 19150-1 "Geographic information -- Ontology --