This Standard establishes the general principles of dimensioning applicable in all fields (i.e., mechanical, electrical civil engineering, architecture etc.). It is possible that in some specific technical areas, the general rules and conventions will not cover all the needs of specialized practices adequately. In such cases additional rules may be laid down in standards specific to these areas. However, the general principles of this Standard shall be followed to facilitate the international exchange of drawings and to ensure the coherence of drawings in a comprehensive system relating to several technical fields. The figures, as shown in this Standard, merely illustrate the text and are not intended to reflect actual usage. The figures are consequently simplified to indicate only the relevant general principles applicable in any technical area.

JIS Z 8317-1:2008

ISO 129:1985 - Equivalent