ISO/TR 11941:1996 is a Korean romanization system used in ISO. It is not commonly used. One example of its use is in Unicode character names.
It is very similar to Yale Romanization.
This system is used in Unicode character names. For example, the character ᄎ (U+110E) is named "HANGUL CHOSEONG CHIEUCH" (한글 초성 치읓); ㅊ is romanized as "ch." However, the character 차 (U+CC28) is named "HANGUL SYLLABLE CA"; ㅊ is romanized as "c."