this international standard specifies symbols ( i. each member body interested in a subject for which a technical use by iso member bodies. iso 2575: specifies symbols ( i. - iso 2575 pdf - `, `, ` `, ` `,, ` ` `, `,, ` ` `,,, ` ` ` `,, - ` - `,, `,, `, `,, ` - - -