Safer Choice Standard

Test Report Number：LCZC16050450-E Date：May. 18, 2016 Page 3 of 5
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Test method and Report Limit：
Test item
Test method
Report Limit
Cadmium (Cd)
IEC 62321-5 :2013, determined by ICP-OES
5 mg/kg
Lead (Pb)
IEC 62321-5 :2013, determined by ICP-OES
5 mg/kg
Mercury (Hg)
IEC 62321-4 :2013, determined by ICP-OES
5 mg/kg
Chromium(VI) (Cr
6+
)
IEC 62321 :2008, determined by UV-VIS
2 mg/kg
PBBs
IEC 62321 :2008, determined by GC-MS
5 mg/kg
PBDEs
IEC 62321 :2008, determined by GC-MS
5 mg/kg
TEST FLOWCHART
A. To Determine Lead/Cadmium/Mercury Content:
B. To Determine Hexavalent Chromium Content in polymer and electronics materials:
Weigh the sample
Add nitric acid and adjust
the pH to 7.5±0.5,then
transfer to volumetric flask
Add the deionized
water
Add
Dipthenylcarbazid
e
Add sulfur acid and adjust
the pH to2.0±0.5,then
Filled up with the deionized
water to the mark
Add reagent, stir 5 minutes
Heat sample at 90-95℃ for
180 minutes
Analyse the extracted
solution by UV-vis
Cool ,and then filter the
extracted solution
by the 0.45um filter
Use the inorganic acid
for completely digestion
Cool the digestion liquid
Filter the digestion
liquid, and transfer to
volumetric flask
Filled up with the
deionized water to the
mark
Analyse the digestion
liquid by ICP
Weigh the sample