本标准规定了铅笔涂层中可溶性素的最大限量、测试方法等要求;本标准适用于各种有涂层的石墨铅笔和彩色铅笔。
This standard specifies the maximum limit, test method and quality assurance for soluble elements (stibium, arsenic, barium, cadmium, chromium, plumbum, mercury, selenium) of pencil coating.
This standard is applicable to coated black pencils and coloured pencils.
本标准规定了铅笔涂层中可溶性素的最大限量、测试方法等要求;本标准适用于各种有涂层的石墨铅笔和彩色铅笔。
This standard specifies the maximum limit, test method and quality assurance for soluble elements (stibium, arsenic, barium, cadmium, chromium, plumbum, mercury, selenium) of pencil coating.
This standard is applicable to coated black pencils and coloured pencils.