CTS_EE_General_V2012_CC Ro HS Ing Report Copper
2019-03-06
: Pdf Rohs ing Report Copper RoHS_ing_report_Copper CertsReports 210614 ProductFiles
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Signed for and on behalf of
SGS-CSTC Standards Technical Services Co., Ltd. Guangzhou Branch.
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Sample Preparation
Sample Measurement
Pb/Cd/Hg
ICP-OES/AAS
Solution
Filtration
Residue
1) Alkali Fusion /
Dry Ashing
2) Acid to
dissolve
Acid digestion with
microwave /
hotplate
DATA
ABS/PC/PVC
Others
DATA
UV-Vis
Adding 1,5-
diphenylcarbazide for
color development
pH adjustment
Dissolving by
ultrasonication
Separating to
get aqueous
phase
Digesting at
60°C by
ultrasonication
Metallic
material
Boiling water
extraction
DATA
UV-Vis.
Adding 1,5-
diphenylcarba
zide for color
development
Nonmetallic
material
Digesting at
150~160p
Cr6+
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