Table 4 Example of product-level BOM data for the tablet category, illustrating how data are presented in the Product Bill of Materials workbook.

From: Disassembly-based bill of materials data for consumer electronic products

Material categories This study Literature12 Average mass %
Samsung (2011) Samsung (2014) Apple iPad (2009)
Mass (g) Mass % Mass (g) Mass % Mass (g) Mass %
Aluminum 45.0 8.0 137 20.0 9.3
Copper 3.9 0.7 2.2 0.45 1.1 0.16 0.4
Steel 28.1 5.0 26.4 5.4 12.5 1.8 4.1
Plastic 127 22.7 150 30.5 36.4 5.3 19.5
Li-ion battery 135 24.1 125 25.4 129 18.8 22.8
PCB 54.4 9.7 35.9 7.3 20.1 2.9 6.6
Flat panel glass 55.0 9.8 60.0 12.2 154 22.5 14.8
CRT glass        
Other glass 110 19.6 90.0 18.3 188 27.4 21.8
Other metals
Others 1.5 0.27 2.6 0.53 7.5 1.1 0.6
Total mass (g) 560   492   686   
  1. Cells left blank indicate that the specified material is not applicable to this product. Cells with “—” indicate that the specified material was not detected by physical separation of the product.