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Analyte	CAS Number	Concentration	Unit
Silver (Ag)	[7440-22-4]	0,004 ± 0,001	mg/kg
Aluminium (Al)	[7429-90-5]	0,015 ± 0,001	%
Arsenic (As)	[7440-38-2]	0,08 ± 0,01	mg/kg
Boron (B)	[7440-42-8]	0,7 ± 0,2	mg/kg
Barium (Ba)	[7440-39-3]	0,15 ± 0,03	mg/kg
Calcium (Ca)	[7440-70-2]	0,007 ± 0,001	%
Cadmium (Cd)	[7440-43-9]	53 ± 4	µg/kg
Cerium (Ce)	[7440-45-1]	0,004 ± 0,002	mg/kg
Cobalt (Co)	[7440-48-4]	0,006 ± 0,002	mg/kg
Chromium (Cr)	[7440-47-3]	0,08	mg/kg
Caesium (Cs)	[7440-46-2]	0,003 ± 0,001	mg/kg
Copper (Cu)	[7440-50-8]	3,0 ± 0,2	mg/kg
Dysprosium (Dy)	[7429-91-6]	0,32 ± 0,08	µg/kg
Erbium (Er)	[7440-52-0]	0,19 ± 0,05	µg/kg
Iron (Fe)	[7439-89-6]	4,0 ± 0,8	mg/kg
Mercury (Hg)	[7439-97-6]	4,2 ± 0,6	mg/kg
Potassium (K)	[7440-09-7]	0,090 ± 0,005	%
Lithium (Li)	[7439-93-2]	0,016 ± 0,004	mg/kg
Magnesium (Mg)	[7439-95-4]	0,013 ± 0,001	%
Manganese (Mn)	[7439-96-5]	11,1 ± 0,7	mg/kg
Molybdenum (Mo)	[7439-98-7]	0,42 ± 0,04	mg/kg
Nitrogen (N)	[7727-37-9]	1,30 ± 0,05	%
Sodium (Na)	[7440-23-5]	11,8 ± 1,6	mg/kg
Neodymium (Nd)	[7440-00-8]	1,0 ± 0,3	µg/kg
Nickel (Ni)	[7440-02-0]	0,21 ± 0,02	mg/kg
Phosphorus (P)	[7723-14-0]	0,078 ± 0,003	%
Lead (Pb)	[7439-92-1]	0,10 ± 0,02	mg/kg
Praseodymium (Pr)	[7440-10-0]	0,5 ± 0,2	µg/kg
Rubidium (Rb)	[7440-17-7]	1,8 ± 0,2	mg/kg
Antimony (Sb)	[7440-36-0]	0,10 ± 0,01	%
Antimony (Sb)	[7440-36-0]	0,009 ± 0,003	mg/kg
Selenium (Se)	[7782-49-2]	0,036 ± 0,008	mg/kg
Silicon (Si)	[7440-21-3]	48 ± 15	mg/kg
Samarium (Sm)	[7440-19-9]	0,3 ± 0,1	µg/kg
Strontium (Sr)	[7440-24-6]	0,15 ± 0,03	mg/kg
Terbium (Tb)	[7440-27-9]	0,07 ± 0,03	µg/kg
Thallium (Tl)	[7440-28-0]	0,23 ± 0,05	µg/kg
Yttrium (Y)	[7440-65-5]	0,21 ± 0,05	mg/kg
Ytterbium (Yb)	[7440-64-4]	0,19 ± 0,05	µg/kg
Zinc (Zn)	[7440-66-6]	13,3 ± 1,2	mg/kg

Analyte

CAS Number

Concentration

Unit

Additional information

Method

Silver (Ag)

[7440-22-4]

0,004 ± 0,001

mg/kg

Aluminium (Al)

[7429-90-5]

0,015 ± 0,001

Arsenic (As)

[7440-38-2]

0,08 ± 0,01

mg/kg

Boron (B)

[7440-42-8]

0,7 ± 0,2

mg/kg

Barium (Ba)

[7440-39-3]

0,15 ± 0,03

mg/kg

Calcium (Ca)

[7440-70-2]

0,007 ± 0,001

Cadmium (Cd)

[7440-43-9]

53 ± 4

µg/kg

Cerium (Ce)

[7440-45-1]

0,004 ± 0,002

mg/kg

Cobalt (Co)

[7440-48-4]

0,006 ± 0,002

mg/kg

Chromium (Cr)

[7440-47-3]

0,08

mg/kg

Caesium (Cs)

[7440-46-2]

0,003 ± 0,001

mg/kg

Copper (Cu)

[7440-50-8]

3,0 ± 0,2

mg/kg

Dysprosium (Dy)

[7429-91-6]

0,32 ± 0,08

µg/kg

Erbium (Er)

[7440-52-0]

0,19 ± 0,05

µg/kg

Iron (Fe)

[7439-89-6]

4,0 ± 0,8

mg/kg

Mercury (Hg)

[7439-97-6]

4,2 ± 0,6

mg/kg

Potassium (K)

[7440-09-7]

0,090 ± 0,005

Lithium (Li)

[7439-93-2]

0,016 ± 0,004

mg/kg

Magnesium (Mg)

[7439-95-4]

0,013 ± 0,001

Manganese (Mn)

[7439-96-5]

11,1 ± 0,7

mg/kg

Molybdenum (Mo)

[7439-98-7]

0,42 ± 0,04

mg/kg

Nitrogen (N)

[7727-37-9]

1,30 ± 0,05

Sodium (Na)

[7440-23-5]

11,8 ± 1,6

mg/kg

Neodymium (Nd)

[7440-00-8]

1,0 ± 0,3

µg/kg

Nickel (Ni)

[7440-02-0]

0,21 ± 0,02

mg/kg

Phosphorus (P)

[7723-14-0]

0,078 ± 0,003

Lead (Pb)

[7439-92-1]

0,10 ± 0,02

mg/kg

Praseodymium (Pr)

[7440-10-0]

0,5 ± 0,2

µg/kg

Rubidium (Rb)

[7440-17-7]

1,8 ± 0,2

mg/kg

Antimony (Sb)

[7440-36-0]

0,10 ± 0,01

Antimony (Sb)

[7440-36-0]

0,009 ± 0,003

mg/kg

Selenium (Se)

[7782-49-2]

0,036 ± 0,008

mg/kg

Silicon (Si)

[7440-21-3]

48 ± 15

mg/kg

Samarium (Sm)

[7440-19-9]

0,3 ± 0,1

µg/kg

Strontium (Sr)

[7440-24-6]

0,15 ± 0,03

mg/kg

Terbium (Tb)

[7440-27-9]

0,07 ± 0,03

µg/kg

Thallium (Tl)

[7440-28-0]

0,23 ± 0,05

µg/kg

Yttrium (Y)

[7440-65-5]

0,21 ± 0,05

mg/kg

Ytterbium (Yb)

[7440-64-4]

0,19 ± 0,05

µg/kg

Zinc (Zn)

[7440-66-6]

13,3 ± 1,2

mg/kg

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NCS Testing Technology Co., Ltd is wholly owned by the China Iron and Steel Research Institute Group (CISRI) and an agency authorized by the Ministry of Industry and Information of the People’s Republic of China for the research, development and sales of reference materials. The Institute has developed more than 1,000 reference materials in its 60 years of existence and supplies RMs and CRMs for the following fields:

Metallurgical (e.g. iron, steel and alloy, nonferrous)
Industrial (e.g. slag, refractory)
Environmental and Geological (e.g. mineral, coal)

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Miscellaneous

Certificate of Analysis (specimen)

Product data sheet