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Environment Principle
 
Environment Principle
Item Restricted Substances NO Mental Limits by Weight (ppm) Plastic Limits by Weight (ppm) Symbol
Heavy Mental Heavy Mental Lead 1 < 1000 < 1000 Pb
Cadmium 2 < 100 < 100 Cd
Mercury 3 < 1000 < 1000 Hg
Hexavalent Chromium 4 < 1000 < 1000 Cr-VI
Others Polybromo-biphenyl Compounds Polybrominated Biphenyls 5 < 1000 < 1000 PBB
Polybrominated Diphenyl Ethers 6 < 1000 < 1000 PBDE
 
Note: ppm = parts per million, unit of measurement for weight

percentage. 1 ppm = 1 mg/kg =0.0001 % by weight.

Note: DSW will follow above regulations to develop green

products unless customers have specific needs.

Note: Wire and PCB will be classified to plastics category.

Note: Applications are exempted from the requirements:

1. Lead in electronic ceramic parts

(eg. piezoelectronic devices)

2. Lead as an alloying element:

Type of Alloy Allowable Content of Lead
Steel Less than 0.35wt% (3500ppm)
Aluminum Alloy Less than 0.4wt% (4000ppm)
Copper Alloy Less than 4wt% (40000ppm)

 
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