This is defined as a limit for each homogenous material, i. E. Component lead, lead plating, glass fibres, plastic moulding, solder, pad finish etc.

• 它被定义为每种相同材料的极限,这些材料包括元件铅、铅盘、玻璃纤维、注塑、焊料、焊盘终饰等。