本规范涵盖了适用于按公制尺寸订购的低合金钢薄板、带材和板材的既定公制制造公差。除非另有说明，这些公差适用于所有条件。术语“excl”用于仅适用于指定范围的较高数字。

This specification covers established metric manufacturing tolerances applicable to low-alloy steel sheet, strip, and plate ordered to metric dimensions. These tolerances apply to all conditions unless otherwise noted. The term 'excl' is used to apply only to the higher figure of the specified range.