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National Sharing Platform for Reference Materials
Sponsor：National Institute of Metrology, China
GBW07168 Zn Concentrate
50g

$0.00

Status Now selling
Delivery Normal
Expire Date 2027-01-31
Quantity:
- +

CodeGBW07168
DescriptionZn Concentrate
Certificatehttps://www.ncrm.org.cn/English/CRM/pdf/GBW07168_20160301_100033128_1265482.pdf
NMI Service Identifier
Measurement Service Sub-Category
Certified Value Certified Uncertainty Unit Memo
Al2O3 0.45 0.03 Mass fraction (10 -2 )
Cu 1.79 0.05 Mass fraction (10 -2 )
CaO 0.89 0.05 Mass fraction (10 -2 )
Pb 0.80 0.04 Mass fraction (10 -2 )
K2O 0.13 0.01 Mass fraction (10 -2 )
Zn 50.59 0.85 Mass fraction (10 -2 )
TFe 7.33 0.30 Mass fraction (10 -2 )
MgO 0.15 0.01 Mass fraction (10 -2 )
Mn 0.022 0.002 Mass fraction (10 -2 )
S 31.6 1.4 Mass fraction (10 -2 )
Ag 126 4 Mass fraction (10 -6 )
Cd 1207 50 Mass fraction (10 -6 )
Ga 103 5 Mass fraction (10 -6 )
Ge 65.5 4.7 Mass fraction (10 -6 )
In 1.5 0.1 Mass fraction (10 -6 )
Se （1.4） Mass fraction (10 -6 )
W 6.8 0.3 Mass fraction (10 -6 )
As 363 22 Mass fraction (10 -6 )
Sb 93.5 5.1 Mass fraction (10 -6 )
Hg 472 27 Mass fraction (10 -6 )
SiO2 2.80 0.25 Mass fraction (10 -2 )
（0.02）
0.33 0.06
1.1 0.1
5.0 0.5
2.7 0.5
（4）
（0.3）
（0.2）
（7）
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