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Analyte	CAS Number	Concentration	Unit	Additional information
Silver (Ag)	[7440-22-4]	0,010 ± 0,002	mg/kg
Aluminium (Al)	[7429-90-5]	0,25 ± 0,02	%
Arsenic (As)	[7440-38-2]	0,10 ± 0,02	mg/kg
Boron (B)	[7440-42-8]	12,6 ± 0,8	mg/kg
Barium (Ba)	[7440-39-3]	32 ± 3	mg/kg
Beryllium (Be)	[7440-41-7]	50 ± 8	µg/kg
Bismuth (Bi)	[7440-69-9]	13 ± 2	µg/kg
Calcium (Ca)	[7440-70-2]	0,47 ± 0,02	%
Cadmium (Cd)	[7440-43-9]	46 ± 5	µg/kg
Cerium (Ce)	[7440-45-1]	1,3 ± 0,2	mg/kg
Chlorine (Cl)	[7782-50-5]	0,050 ± 0,004	%
Cobalt (Co)	[7440-48-4]	0,28 ± 0,02	mg/kg
Chromium (Cr)	[7440-47-3]	0,79 ± 0,11	mg/kg
Caesium (Cs)	[7440-46-2]	0,19 ± 0,02	mg/kg
Copper (Cu)	[7440-50-8]	8,3 ± 0,5	mg/kg
Dysprosium (Dy)	[7429-91-6]	130 ± 20	µg/kg
Erbium (Er)	[7440-52-0]	80 ± 10	µg/kg
Europium (Eu)	[7440-53-1]	25 - 29	µg/kg	Concentration: confidence interval
Iron (Fe)	[7439-89-6]	149 ± 7	mg/kg
Gadolinium (Gd)	[7440-54-2]	140 ± 20	µg/kg
Germanium (Ge)	[7440-56-4]	13 ± 5	µg/kg
Mercury (Hg)	[7439-97-6]	8 ± 1	µg/kg
Holmium (Ho)	[7440-60-0]	28 ± 4	µg/kg
Potassium (K)	[7440-09-7]	1,45 ± 0,05	%
Lanthanum (La)	[7439-91-0]	1,01 ± 0,08	mg/kg
Lithium (Li)	[7439-93-2]	0,25 ± 0,02	mg/kg
Lutetium (Lu)	[7439-94-3]	16 ± 3	µg/kg
Magnesium (Mg)	[7439-95-4]	0,18 ± 0,01	%
Manganese (Mn)	[7439-96-5]	0,125 ± 0,004	%
Molybdenum (Mo)	[7439-98-7]	0,04 ± 0,01	mg/kg
Nitrogen (N)	[7727-37-9]	3,4 ± 0,3	%
Sodium (Na)	[7440-23-5]	22,6 ± 6,7	mg/kg
Neodymium (Nd)	[7440-00-8]	0,66 ± 0,08	mg/kg
Phosphorus (P)	[7723-14-0]	0,24 ± 0,01	%
Lead (Pb)	[7439-92-1]	1,09 ± 0,13	mg/kg
Praseodymium (Pr)	[7440-10-0]	150 - 180	µg/kg	Concentration: confidence interval
Rubidium (Rb)	[7440-17-7]	45,9 ± 3,3	mg/kg
Sulfur (S)	[7704-34-9]	0,26 ± 0,02	%
Antimony (Sb)	[7440-36-0]	0,05 ± 0,01	mg/kg
Scandium (Sc)	[7440-20-2]	89 ± 17	µg/kg
Selenium (Se)	[7782-49-2]	0,09 ± 0,04	mg/kg
Silicon (Si)	[7440-21-3]	0,04 ± 0,01	%
Samarium (Sm)	[7440-19-9]	120 ± 20	µg/kg
Tin (Sn)	[7440-31-5]	0,06 ± 0,01	mg/kg
Strontium (Sr)	[7440-24-6]	13,7 ± 0,7	mg/kg
Terbium (Tb)	[7440-27-9]	21 ± 2	µg/kg
Thorium (Th)	[7440-29-1]	33,4 ± 7,2	µg/kg
Thallium (Tl)	[7440-28-0]	47 ± 8	µg/kg
Thulium (Tm)	[7440-30-4]	14 ± 2	µg/kg
Uranium (U)	[7440-61-1]	13 ± 2	µg/kg
Vanadium (V)	[7440-62-2]	0,3 ± 0,1	mg/kg
Yttrium (Y)	[7440-65-5]	2,0 ± 0,2	mg/kg
Ytterbium (Yb)	[7440-64-4]	100 ± 20	µg/kg
Zinc (Zn)	[7440-66-6]	27 ± 3	mg/kg

Analyte

CAS Number

Concentration

Unit

Additional information

Method

Silver (Ag)

[7440-22-4]

0,010 ± 0,002

mg/kg

Aluminium (Al)

[7429-90-5]

0,25 ± 0,02

Arsenic (As)

[7440-38-2]

0,10 ± 0,02

mg/kg

Boron (B)

[7440-42-8]

12,6 ± 0,8

mg/kg

Barium (Ba)

[7440-39-3]

32 ± 3

mg/kg

Beryllium (Be)

[7440-41-7]

50 ± 8

µg/kg

Bismuth (Bi)

[7440-69-9]

13 ± 2

µg/kg

Calcium (Ca)

[7440-70-2]

0,47 ± 0,02

Cadmium (Cd)

[7440-43-9]

46 ± 5

µg/kg

Cerium (Ce)

[7440-45-1]

1,3 ± 0,2

mg/kg

Chlorine (Cl)

[7782-50-5]

0,050 ± 0,004

Cobalt (Co)

[7440-48-4]

0,28 ± 0,02

mg/kg

Chromium (Cr)

[7440-47-3]

0,79 ± 0,11

mg/kg

Caesium (Cs)

[7440-46-2]

0,19 ± 0,02

mg/kg

Copper (Cu)

[7440-50-8]

8,3 ± 0,5

mg/kg

Dysprosium (Dy)

[7429-91-6]

130 ± 20

µg/kg

Erbium (Er)

[7440-52-0]

80 ± 10

µg/kg

Europium (Eu)

[7440-53-1]

25 - 29

µg/kg

Concentration: confidence interval

Iron (Fe)

[7439-89-6]

149 ± 7

mg/kg

Gadolinium (Gd)

[7440-54-2]

140 ± 20

µg/kg

Germanium (Ge)

[7440-56-4]

13 ± 5

µg/kg

Mercury (Hg)

[7439-97-6]

8 ± 1

µg/kg

Holmium (Ho)

[7440-60-0]

28 ± 4

µg/kg

Potassium (K)

[7440-09-7]

1,45 ± 0,05

Lanthanum (La)

[7439-91-0]

1,01 ± 0,08

mg/kg

Lithium (Li)

[7439-93-2]

0,25 ± 0,02

mg/kg

Lutetium (Lu)

[7439-94-3]

16 ± 3

µg/kg

Magnesium (Mg)

[7439-95-4]

0,18 ± 0,01

Manganese (Mn)

[7439-96-5]

0,125 ± 0,004

Molybdenum (Mo)

[7439-98-7]

0,04 ± 0,01

mg/kg

Nitrogen (N)

[7727-37-9]

3,4 ± 0,3

Sodium (Na)

[7440-23-5]

22,6 ± 6,7

mg/kg

Neodymium (Nd)

[7440-00-8]

0,66 ± 0,08

mg/kg

Phosphorus (P)

[7723-14-0]

0,24 ± 0,01

Lead (Pb)

[7439-92-1]

1,09 ± 0,13

mg/kg

Praseodymium (Pr)

[7440-10-0]

150 - 180

µg/kg

Concentration: confidence interval

Rubidium (Rb)

[7440-17-7]

45,9 ± 3,3

mg/kg

Sulfur (S)

[7704-34-9]

0,26 ± 0,02

Antimony (Sb)

[7440-36-0]

0,05 ± 0,01

mg/kg

Scandium (Sc)

[7440-20-2]

89 ± 17

µg/kg

Selenium (Se)

[7782-49-2]

0,09 ± 0,04

mg/kg

Silicon (Si)

[7440-21-3]

0,04 ± 0,01

Samarium (Sm)

[7440-19-9]

120 ± 20

µg/kg

Tin (Sn)

[7440-31-5]

0,06 ± 0,01

mg/kg

Strontium (Sr)

[7440-24-6]

13,7 ± 0,7

mg/kg

Terbium (Tb)

[7440-27-9]

21 ± 2

µg/kg

Thorium (Th)

[7440-29-1]

33,4 ± 7,2

µg/kg

Thallium (Tl)

[7440-28-0]

47 ± 8

µg/kg

Thulium (Tm)

[7440-30-4]

14 ± 2

µg/kg

Uranium (U)

[7440-61-1]

13 ± 2

µg/kg

Vanadium (V)

[7440-62-2]

0,3 ± 0,1

mg/kg

Yttrium (Y)

[7440-65-5]

2,0 ± 0,2

mg/kg

Ytterbium (Yb)

[7440-64-4]

100 ± 20

µg/kg

Zinc (Zn)

[7440-66-6]

27 ± 3

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