RM in circulation

 

INFORMATION

about the RM`s lots in circulation, produced by the Center

 

The date of the lot

production

(characterization)

The name of RM,

RM N in the Center`s Register

RM status

RM N in the National RM`s State Register1

(RM N in the RM`s Interstate Register MSO2)

N of the Certificate on GSO type approval, valid until

Lot N

The results of characterization

The shelf life of the RM`s lot units,

until

RM` certified value

Relative (absolute*) error

of the RM certified value

( = 0,95)3

August

2019

RM of turbidity (formazine suspension)

A4.3.C-301-CSO

CRM

GSO 7271-96

(MSO 0101:1999)

N 5444 until 11.04.2023

73/301-CSO

4020 FTU

+ 1,7 %

September

2020

August

2019

RM of iron (III) ions aqueous solution (5K-1)

A2.6.VR-5K-1-CSO

CRM

GSO 8032-94

(MSO 0009:1998)

N 4536 until

17.07.2020

34/5K-1-CSO

1,004 g/dm3

+ 0,5 %

September

2022

August

2019

RM of electrical conductivity of aqueous media

A9.3.C-UEP-4-CSO

CRM

GSO 7377-97

(MSO 1120:2005)

N 5201 until

09.08.2022

37/UEP-4-CSO

0,02939 Sm/m

+ 0,25 %

September

2022

August

2019

RM of potassium ions aqueous solution (18K-1)

A2.6.VR-18K-1-CSO

CRM

GSO 8092-94

(MSO 0019:1998)

N 4833 until

18.07.2021

23/18K-1-CSO

1,002 g/dm3

+ 0,6 %

September

2023

August

2019

RM of phenol

A3.1.O-101-CSO

CRM

GSO 7101-94 (MSO 0035:1998)

N 4416 until

14.05.2020

31/101-CSO

99,84 %

+ 0,04 %*

September

2021

August

2019

RM of oil (a mixture of hexadecane, isooctane and benzene) in carbon tetrachloride (NP-1)

A3.1.OR-404-CSO

CRM

GSO 7424-97 (MSO 1123:2005)

N 5246 until

10.11.2022

26/NP-1-CSO

50,63 g/dm3

+ 2,5 %

September

2021

August

2019

RM of sulfate-ions aqueous solutions (set 4A)

A2.6.VR-4A-CSO

CRM

GSO 6693-93÷6695-93

(MSO 0024:1998)

N 4534 until

17.07.2020

26/4A-1-CSO

26/4A-2-CSO

26/4A-3-CSO

0,998 g/dm3

0,499 g/dm3

0,0997 g/dm3

+ 0,6 %

+ 0,6 %

+ 0,7 %

September

2022

August

2019

RM of sulfate-ions aqueous solution (4A-1)

A2.6.VR-4A-1-CSO

CRM

GSO 6693-93

(MSO 0024:1998)

N 4534 until

17.07.2020

26/4A-1-CSO

0,998 g/dm3

+ 0,6 %

September

2022

August

2019

RM of electrical conductivity of aqueous media

A9.3.C-UEP-1-CSO

CRM

GSO 7374-97

(MSO 1117:2005)

N 5198 until 09.08.2022

22/UEP-1-CSO

11,00 Sm/m

+ 0,25 %

September

2022

July

2019

RM of chlorobenzene solution in methanol

(5/OR-1)

A3.1.OR-205.1-CSO

CRM

GSO 7142-95M

(MSO 0097:1999)

N 5598 until

29.06.2023

9/205.1-CSO

1,020 g/dm3

+2,1 %

August

2024

July

2019

RM of chloride-ions aqueous solution (1A-1)

A2.6.VR-1A-1-CSO

CRM

GSO 6687-93

(MSO 0023:1998)

N 4390 until

20.04.2020

24/1A-1-CSO

0,996 g/dm3

+ 0,5 %

August

2022

July

2019

RM of total hardness of water

A4.3.C-018-CSO

CRM

GSO 9284-2008

(MSO 1582:2009)

N 5746 until 01.11.2023

8/018-CSO

99,6 degrees of hardness

+ 1,3 %

August

2024

July

2019

RM of colour of aqueous solutions

(chromium-cobalt scale)

A4.3.C-306-CSO

CRM

GSO 7853-2000

(MSO 0254:2001)

N 4394 until 20.04.2020

61/306-CSO

509 degrees of colour

+ 1,5 %

August

2021

July

2019

RM of arsenic (III) ions aqueous solutions (11K)

A2.6.VR-11K-CSO

CRM

GSO 7143-95÷7144-95

(MSO 0082:1999)

N 5118 until 31.05.2022

16/11K-1-CSO

16/11K-2-CSO

0,0996 g/dm3

0,0506 g/dm3

+0,6 %

+0,7 %

August

2024

July

2019

RM of lithium ions aqueous solution

A2.6.VR-030-CSO

CRM

GSO 10229-2013

(MSO 1878:2014)

N 5499 until

08.05.2023

8/030-CSO

0,998 g/dm3

+ 0,8 %

February

2021

July

2019

RM of metals aqueous solution (Fe, Ni, Pb, Mn, Zn) RM-2

A2.6-VR-402-CSO

CRM

GSO 7272-96

(MSO 0094:1999)

N 5741 until

01.11.2023

8/RM-2-CSO

Fe - 0,503 g/dm3

Ni - 0,101 g/dm3

Pb - 0,101 g/dm3

Mn - 0,101 g/dm3

Zn - 0,101 g/dm3

+ 1,95 %

+ 1,95 %

+ 1,95 %

+ 1,95 %

+ 1,95 %

August

2024

July

2019

RM of silicon ions aqueous solution (Si-1)

A.6.VR-028-1-CSO

CRM

GSO 9729-2010

(MSO 1742:2011)

N 4646 until

19.11.2020

13/028-1-CSO

0,966 g/dm3

+ 0,8 %

February

2021

July

2019

RM of dichromate oxidation of water (COD)

A4.3.C-304-CSO

CRM

GSO 7425-97

(MSO 1124:2005)

N 5247 until 10.11.2022

35/304-CSO

10 080 mg/dm3

+ 1,3 %

August

2021

June

2019

RM of calcium ions aqueous solution (19K-1)

A2.6.VR-19K-1-CSO

CRM

GSO 8065-94

(MSO 0020:1998)

N 4831 until

18.07.2021

21/19K-1-CSO

1,001 g/dm3

+ 0,8 %

July

2023

June

2019

RM of copper ions aqueous solution (3K-1)

A2.6.VR-3K-1-CSO

CRM

GSO 7998-93

(MSO 0007:1998)

N 5120 until

31.05.2022

26/3K-1-CSO

1,008 g/dm3

+ 0,4 %

July

2022

June

2019

RM of total alkalinity of water

A4.3.C-019-CSO

CRM

GSO 9285-2009

(MSO 1584:2009)

N 5896 until 10.04.2024

23/019-CSO

1004 mmol/dm3

+ 0,6 %

January

2021

June

2019

RM of nitrite-ions aqueous solution (7A-1)

A2.6.VR-7A-1-CSO

CRM

GSO 7021-93

(MSO 0027:1998)

N 4393 until

20.04.2020

33/7A-1-CSO

1,017 g/dm3

+ 0,9 %

July

2022

June

2019

RM of phenol solution in methanol (1/OR-1)

A3.1.OR-201.1-CSO

CRM

GSO 7353-97

(MSO 1115:2005)

N 5445 until

11.04.2023

20/201.1-CSO

0,996 g/dm3

+2,9 %

July

2022

June

2019

RM of fluoride-ions aqueous solution (2A-1)

A2.6.VR-2A-1-CSO

CRM

GSO 7188-95

(MSO 0090:1999)

N 5240 until 10.11.2022

32/2A-1-CSO

0,995 g/dm3

+ 0,8 %

January

2021

June

2019

RM of nickel ions aqueous solution (6K-1)

A2.6.VR-6K-1-CSO

CRM

CRM corresponds to the type of

GSO 8001-93

(MSO 0010:1998)

------

17/6K-1-CSO

0,995 g/dm3

+ 0,5 %

July

2022

June

2019

RM of oil content in water-soluble matrix NPVM-0,1

A.4.3.NPVM-034-0,1-CSO

RM

------

------

14/034-0,1-CSO

0,100** mg

+ 2,5 %

July

2022

June

2019

RM of oil content in water-soluble matrix NPVM-0,1

A.4.3.NPVM-034-0,1-CSO

RM

------

------

13/034-0,1-CSO

0,100** mg

+ 2,5 %

July

2022

May

2019

RM of oil content in water-soluble matrix NPVM-0,05

A.4.3.NPVM-034-0,05-CSO

RM

------

------

6/034-0,05-CSO

0,040** mg

+ 4,0 %

June

2022

May

2019

RM of 1,2-dichloroethane for chromatography

A3.1.O-007-CSO

RM

------

------

8/007-CSO

99,98 %

+ 0,20 %*

June

2025

May

2019

RM of carbon tetrachloride solution in methanol (7/OR-1)

A3.1.OR-207.1-CSO

CRM

GSO 7334-96

(MSO 0098:1999)

N 5599 until

29.06.2023

10/207.1-CSO

1,016 g/dm3

+ 3,5 %

June

2022

May

2019

RM of isooctane

CRM

GSO 7323-96

(MSO 0106:1999)

N 5194 until 09.08.2022

14/109-CSO

99,89 %

+ 0,03 %*

June

2022

May

2019

RM of electrical conductivity of aqueous media

A9.3.C-UEP-5-CSO

CRM

GSO 7378-97

(MSO 1121:2005)

N 5202 until

09.08.2022

47/UEP-5-CSO

0,004735 Sm/m

+ 0,25 %

June

2022

May

2019

RM of electrical conductivity of aqueous media

A9.3.C-UEP-3-CSO

CRM

GSO 7376-97

(MSO 1119:2005)

N 5200 until 09.08.2022

33/UEP-3-CSO

0,1419 Sm/m

+ 0,25 %

June

2022

May

2019

RM of sodium dodecyl sulfate (SDS) aqueous solution (43A)

A2.6.VR-43A-CSO

CRM

GSO 8362-2003

(MSO 0620:2003)

N 5715 until

23.10.2023

6/43A-CSO

10,29 g/dm3

+ 1,2 %

June

2022

May

2019

RM of turbidity (formazine suspension)

A4.3.C-301-CSO

CRM

GSO 7271-96

(MSO 0101:1999)

N 5444 until 11.04.2023

72/301-CSO

4040 FTU

+ 1,7 %

June

2020

May

2019

RM of aluminum ions aqueous solution (42K)

A2.6.VR-42K-CSO

CRM

GSO 7854-2000

(MSO 0255:2001)

N 4830 until

18.07.2021

9/42K-CSO

0,996 g/dm3

+ 0,9 %

June

2023

May

2019

RM of hexadecane

A3.1.O-108-CSO

CRM

GSO 7289-96

(MSO 0105:1999)

N 5193 until 09.08.2022

18/108-CSO

99,85%

+0,03 %*

June

2021

April

2019

RM of chloroform

A3.1.O-110-CSO

CRM

GSO 7288-96 (MSO 0104:1999)

N 5192 until

09.08.2022

27/110-CSO

99,91 %

+ 0,02 %*

May

2022

April

2019

RM of benzene solution in methanol

A3.1.OR-204.1-CSO

CRM

GSO 7141-95M

(MSO 0096:1999)

N 5597 until

29.06.2023

9/204.1-CSO

0,995 g/dm3

+ 2,9 %

May

2024

April

2019

RM of sodium ions aqueous solution (17K-1)

A2.6.VR-17K-1-CSO

CRM

GSO 8062-94

(MSO 0018:1998)

N 5248 until

10.11.2022

23/17K-1-CSO

1,004 g/dm3

+ 0,6 %

May

2023

April

2019

RM of sulfide-ions aqueous solution

A2.6.VR-026-CSO

CRM

GSO 9728-2010

(MSO 1741:2011)

N 4645 until

19.11.2020

9/026-CSO

1,001 g/dm3

+ 0,9 %

November

2020

April

2019

RM of colour of aqueous solutions

(chromium-cobalt scale)

A4.3.C-306-CSO

CRM

GSO 7853-2000

(MSO 0254:2001)

N 4394 until 20.04.2020

60/306-CSO

508 degrees of colour

+ 1,5 %

May

2021

April

2019

RM of total alkalinity of water

A4.3.C-019-CSO

CRM

GSO 9285-2009

(MSO 1584:2009)

N 3796 until 24.06.2019

22/019-CSO

1004 mmol/dm3

+ 0,6 %

November

2020

April

2019

RM of electrical conductivity of aqueous media (UEP-2)

A9.3.C-UEP-2-CSO

CRM

GSO 7375-97

(MSO 1118:2005)

N 5199 until

09.08.2022

28/UEP-2-CSO

1,297 Sm/m

+ 0,25 %

May

2022

April

2019

RM of carbon tetrachloride

A3.1.O-107-CSO

CRM

GSO 7213-95

(MSO 0103:1999)

N 5243 until

10.11.2022

16/107-CSO

99,98 %

+ 0,01 %*

May

2022

April

2019

RM of benzene

A3.1.O-104-CSO

CRM

GSO 7141-95

(MSO 0038:1998)

N 4415 until

14.05.2020

18/104-CSO

99,96 %

+ 0,01 % *

May

2022

March

2019

RM of electrical conductivity of aqueous media

A9.3.C-UEP-4-CSO

CRM

GSO 7377-97

(MSO 1120:2005)

N 5201 until

09.08.2022

36/UEP-4-CSO

0,02945 Sm/m

+ 0,25 %

April

2022

March

2019

RM of total mineralization of water

A4.3.C-017-CSO

CRM

GSO 9283-2008

(MSO 1581:2009)

N 5745 until

01.11.2023

11/017-CSO

50 700 mg/dm3

50 500 mg/dm3

+ 0,8 %

+ 0,8 %

April

2024

March

2019

RM of boron ions aqueous solution (39K-1)

A2.6.VR-39K-1-CSO

CRM

GSO 7337-96

(MSO 0089:1999)

N 5196 until

09.08.2022

21/39K-1-CSO

0,998 g/dm3

+ 0,9 %

April

2021

March

2019

RM of turbidity (formazine suspension)

A4.3.C-301-CSO

CRM

GSO 7271-96

(MSO 0101:1999)

N 5444 until 11.04.2023

71/301-CSO

4140 FTU

+ 1,7 %

April

2020

March

2019

RM of fluoride-ions aqueous solution (2A-1)

A2.6.VR-2A-1-CSO

CRM

GSO 7188-95

(MSO 0090:1999)

N 5240 until 10.11.2022

31/2A-1-CSO

0,998 g/dm3

+ 0,8 %

October

2020

March

2019

RM of silicon ions aqueous solution (Si-1)

A.6.VR-028-1-CSO

CRM

GSO 9729-2010

(MSO 1742:2011)

N 4646 until

19.11.2020

12/028-1-CSO

0,968 g/dm3

+ 0,9 %

October

2020

March

2019

RM of methylene chloride for chromatography

A3.1.O-015-CSO

RM

------

------

6/015-CSO

99,93 %

+ 0,20 %*

April

2025

March

2019

RM of oil content in water-soluble matrix NPVM-1

A.4.3.NPVM-034-1-CSO

RM

------

------

6/034-1-CSO

1,00** mg

+ 2,5 %

April

2022

March

2019

RM of oil content in water-soluble matrix NPVM-0,1

A.4.3.NPVM-034-0,1-CSO

RM

------

------

12/034-0,1-CSO

0,100** mg

+ 2,5 %

April

2022

March

2019

RM of oil content in water-soluble matrix NPVM-0,1

A.4.3.NPVM-034-0,1-CSO

RM

------

------

11/034-0,1-CSO

0,100** mg

+ 2,5 %

April

2022

March

2019

RM of oil content in water-soluble matrix NPVM-0,5

A.4.3.NPVM-034-0,5-CSO

RM

------

------

8/034-0,5-CSO

0,50** mg

+ 2,5 %

April

2022

March

2019

RM of oil content in water-soluble matrix NPVM-0,5

A.4.3.NPVM-034-0,5-CSO

RM

------

------

7/034-0,5-CSO

0,50** mg

+ 2,5 %

April

2022

February

2019

RM of dichromate oxidation of water (COD)

A4.3.C-304-CSO

CRM

GSO 7425-97

(MSO 1124:2005)

N 5247 until 10.11.2022

34/304-CSO

10 120 mg/dm3

+ 1,4 %

March

2021

February

2019

RM of colour of aqueous solutions

(chromium-cobalt scale)

A4.3.C-306-CSO

CRM

GSO 7853-2000

(MSO 0254:2001)

N 4394 until 20.04.2020

59/306-CSO

512 degrees of colour

+ 1,5 %

March

2021

February

2019

RM of electrical conductivity of aqueous media

A9.3.C-UEP-3-CSO

CRM

GSO 7376-97

(MSO 1119:2005)

N 5200 until 09.08.2022

32/UEP-3-CSO

0,1391 Sm/m

+ 0,25 %

March

2022

February

2019

RM of electrical conductivity of aqueous media

A9.3.C-UEP-5-CSO

CRM

GSO 7378-97

(MSO 1121:2005)

N 5202 until

09.08.2022

46/UEP-5-CSO

0,004667 Sm/m

+ 0,25 %

March

2022

February

2019

RM of nitrate-ions aqueous solution (5A-1)

A2.6.VR-5A-1-CSO

CRM

GSO 6696-93

(MSO 0025:1998)

N 4391 until

20.04.2020

30/5A-1-CSO

0,999 g/dm3

+ 0,4 %

March

2022

February

2019

RM of oil content in water-soluble matrix NPVM-5

A.4.3.NPVM-034-5-CSO

RM

------

------

7/034-5-CSO

5,00** mg

+ 2,5 %

March

2022

January

2019

RM of ammonium ions aqueous solutions (set 15K)

A2.6.VR-15K-CSO

CRM

GSO 7015-93 ÷ 7017-93

(MSO 0017:1998)

N 4535 until

17.07.2020

34/15K-1-CSO

34/15K-2-CSO

34/15K-3-CSO

1,010 g/dm3

0,504 g/dm3

0,1021 g/dm3

+ 0,6 %

+ 0,6 %

+ 0,6 %

February

2022

January

2019

RM of ammonium ions aqueous solution (15K-1)

A2.6.VR-15K-1-CSO

CRM

GSO 7015-93

(MSO 0017:1998)

N 4535 until

17.07.2020

34/15K-1-CSO

1,010 g/dm3

+ 0,6 %

February

2022

January

2019

RM of silver ions aqueous solution

A2.6.VR-027-CSO

CRM

GSO 9727-2010

(MSO 1740:2011)

N 4644 until 19.11.2020

5/027-CSO

1,004 g/dm3

+ 0,5 %

February

2022

January

2019

RM of magnesium ions aqueous solution (20K-1)

A2.6.VR-20K-1-CSO

CRM

GSO 7190-95

(MSO 0085:1999)

N 5241 until 10.11.2022

17/20K-1-CSO

1,012 g/dm3

+ 0,7 %

February

2023

January

2019

RM of phosphate-ions aqueous solution (6A-1)

A2.6.VR-6A-1-CSO

CRM

GSO 7018-93

(MSO 0026:1998)

N 4392 until

20.04.2020

32/6A-1-CSO

0,998 g/dm3

+ 0,6 %

February

2022

January

2019

RM of iron (III) ions aqueous solution (5K-1)

A2.6.VR-5K-1-CSO

CRM

GSO 8032-94

(MSO 0009:1998)

N 4536 until

17.07.2020

33/5K-1-CSO

1,000 g/dm3

+ 0,5 %

February

2022

January

2019

RM of oil content in water-soluble matrix NPVM-0,05

A.4.3.NPVM-034-0,05-CSO

RM

------

------

5/034-0,05-CSO

0,040** mg

+ 4,0 %

February

2022

January

2019

RM of oil content in water-soluble matrix NPVM-0,02

A.4.3.NPVM-034-0,02-CSO

RM

------

------

2/034-0,02-CSO

0,020** mg

+ 4,0 %

February

2022

December

2018

RM of electrical conductivity of aqueous media

A9.3.C-UEP-4-CSO

CRM

GSO 7377-97

(MSO 1120:2005)

N 5201 until

09.08.2022

35/UEP-4-CSO

0,02942 Sm/m

+ 0,25 %

January

2022

December

2018

RM of sulfate-ions aqueous solution (41A)

A2.6.VR-41A-CSO

CRM

GSO 7437-98 (MSO 1126:2005)

N 5714 until

23.10.2023

18/41A-CSO

10,08 g/dm3

+ 0,6 %

January

2024

December

2018

RM of turbidity (formazine suspension)

A4.3.C-301-CSO

CRM

GSO 7271-96

(MSO 0101:1999)

N 5444 until 11.04.2023

70/301-CSO

4140 FTU

+ 1,5 %

January

2020

December

2018

RM of total hardness of water

A4.3.C-302-CSO

CRM

GSO 7373-97

(MSO 1116:2005)

N 5446 until

11.04.2023

37/302-CSO

10,09 degrees of hardness

+ 0,7 %

January

2024

December

2018

RM of colour of aqueous solutions

(chromium-cobalt scale)

A4.3.C-306-CSO

CRM

GSO 7853-2000

(MSO 0254:2001)

N 4394 until 20.04.2020

58/306-CSO

512 degrees of colour

+ 1,4 %

January

2021

December

2018

RM of acetone for chromatography

A3.1.O-013-CSO

RM

------

------

8/013-CSO

99,95 %

+ 0,20 % *

January

2025

November

2018

RM of manganese (II) ions aqueous solution (10K-1)

A2.6.VR-10K-1-CSO

CRM

CRM corresponds to the type of

GSO 8056-94

(MSO 0014:1998)

------

16/10K-1-CSO

0,987 g/dm3

+ 0,8 %

December

2023

November

2018

RM of electrical conductivity of aqueous media

A9.3.C-UEP-5-CSO

CRM

GSO 7378-97

(MSO 1121:2005)

N 5202 until

09.08.2022

45/UEP-5-CSO

0,004731 Sm/m

+ 0,25 %

December

2021

November

2018

RM of total alkalinity of water

A4.3.C-019-CSO

CRM

GSO 9285-2009

(MSO 1584:2009)

N 3796 until 24.06.2019

21/019-CSO

998 mmol/dm3

+ 0,7 %

June

2020

November

2018

RM of sulfate-ions aqueous solution (4A-1)

A2.6.VR-4A-1-CSO

CRM

GSO 6693-93

(MSO 0024:1998)

N 4534 until

17.07.2020

25/4A-1-CSO

0,995 g/dm3

+ 0,6 %

December

2021

November

2018

RM of sodium ions aqueous solutions (set N 17K)

A2.6.VR-17K-CSO

CRM

GSO 8062-94÷8064-94

(MSO 0018:1998)

N 5248 until

10.11.2022

22/17K-1-CSO

22/17K-2-CSO

22/17K-3-CSO

1,001 g/dm3

0,501 g/dm3

0,1005 g/dm3

+ 0,6 %

+ 0,6 %

+ 0,6 %

December

2022

November

2018

RM of potassium iodate aqueous solutions (set N 29K)

A2.6.VR-29K-CSO

CRM

CRM corresponds to the type of

GSO 7104-94÷7106-94

(MSO 0022:1998)

------

21/29K-1-CSO

21/29K-2-CSO

21/29K-3-CSO

2015 mg/dm3

502 mg/dm3

200 mg/dm3

+ 0,7 %

+ 0,7 %

+ 0,8 %

December

2023

November

2018

RM of formaldehyde aqueous solution

A2.6.VR-022-CSO

CRM

CRM corresponds to the type of

GSO 9376-2009

(MSO 1592:2010)

------

7/022-CSO

1,019 g/dm3

+ 0,8 %

December

2023

November

2018

RM of chloroform

A3.1.O-110-CSO

CRM

GSO 7288-96 (MSO 0104:1999)

N 5192 until

09.08.2022

26/110-CSO

99,90 %

+ 0,02 %*

December

2021

November

2018

RM of barium ions aqueous solution (21K-1)

A2.6.VR-21K-1-CSO

CRM

GSO 7107-94

(MSO 0021:1998)

N 5117 until 31.05.2022

12/21K-1-CSO

1,005 g/dm3

+ 0,8 %

December

2023

October

2018

RM of fluoride-ions aqueous solution (2A-1)

A2.6.VR-2A-1-CSO

CRM

GSO 7188-95

(MSO 0090:1999)

N 5240 until 10.11.2022

30/2A-1-CSO

0,995 g/dm3

+ 0,8 %

May

2020

October

2018

RM of strontium ions aqueous solution (25K-1)

A2.6.VR-25K-1-CSO

CRM

GSO 7145-95

(MSO 0083:1999)

N 5119 until 31.05.2022

11/25K-1-CSO

1,009 g/dm3

+ 0,7 %

November

2023

October

2018

RM of lead ions aqueous solution (2K-1)

A2.6.VR-2K-1-CSO

CRM

GSO 7012-93

(MSO 0006:1998)

N 5116 until 31.05.2022

22/2K-1-CSO

1,013 g/dm3

+ 0,7 %

November

2021

October

2018

RM of chloride-ions aqueous solution (40A)

A2.6.VR-40A-CSO

CRM

GSO 7436-98

(MSO 1125:2005)

N 3465 until

16.12.2018

17/40A-CSO

9,91 g/dm3

+ 0,6 %

November

2023

October

2018

RM of nitrite-ions aqueous solution (7A-1)

A2.6.VR-7A-1-CSO

CRM

GSO 7021-93

(MSO 0027:1998)

N 4393 until

20.04.2020

32/7A-1-CSO

1,016 g/dm3

+ 0,9 %

November

2021

October

2018

RM of oil content in water-soluble matrix NPVM-0,1

A.4.3.NPVM-034-0,1-CSO

RM

------

------

10/034-0,1-CSO

0,100** mg

+ 2,5 %

November

2021

October

2018

RM of tin (IV) ions aqueous solution (27K-1)

A2.6.VR-27K-1-CSO

CRM

GSO 7238-96

(MSO 0088:1999)

N 5383 until 21.02.2023

12/27K-1-CSO

1,004 g/dm3

+ 0,6 %

November

2021

September

2018

RM of total phosphorus aqueous solution (9A-1)

A2.6.VR-9A-1-CSO

CRM

GSO 7241-96

(MSO 0092:1999)

N 5244 until 10.11.2022

13/9A-1-CSO

0,490 g/dm3

+ 2,0 %

October

2021

September

2018

RM of cadmium ions aqueous solution (1K-1)

A2.6.VR-1K-1-CSO

CRM

GSO 6690-93

(MSO 0005:1998)

N 4533 until 17.07.2020

18/1K-1-CSO

0,998 g/dm3

+ 0,3 %

October

2022

September

2018

RM of dichromate oxidation of water (COD)

A4.3.C-304-CSO

CRM

GSO 7425-97

(MSO 1124:2005)

N 5247 until 10.11.2022

33/304-CSO

10020 mg/dm3

+ 1,1 %

October

2020

September

2018

RM of tetrachloroethylene

A3.1.O-113-CSO

CRM

GSO 7423-97

(MSO 1122:2005)

N 3464 until 16.12.2018

12/113-CSO

99,93%

+0,02 %*

October

2021

September

2018

RM of hexadecane

A3.1.O-108-CSO

CRM

GSO 7289-96

(MSO 0105:1999)

N 5193 until 09.08.2022

17/108-CSO

99,72%

+0,06 %*

October

2020

September

2018

RM of chromium (VI) ions aqueous solution (7K-1)

A2.6.VR-7K-1-CSO

CRM

CRM corresponds to the type of

GSO 8035-94

(MSO 0011:1998)

------

17/7K-1-CSO

0,999 g/dm3

+ 0,6 %

October

2022

September

2018

RM of electrical conductivity of aqueous media

A9.3.C-UEP-5-CSO

CRM

GSO 7378-97

(MSO 1121:2005)

N 5202 until

09.08.2022

44/UEP-5-CSO

0,004723 Sm/m

+ 0,25 %

October

2021

September

2018

RM of oil content in water-soluble matrix NPVM-1

A.4.3.NPVM-034-1-CSO

RM

------

------

5/034-1-CSO

1,00** mg

+ 2,5 %

October

2021

September

2018

RM of potassium ions aqueous solution (18K-1)

A2.6.VR-18K-1-CSO

CRM

GSO 8092-94

(MSO 0019:1998)

N 4833 until

18.07.2021

22/18K-1-CSO

1,002 g/dm3

+ 0,6 %

October

2022

September

2018

RM of electrical conductivity of aqueous media

A9.3.C-UEP-1-CSO

CRM

GSO 7374-97

(MSO 1117:2005)

N 5198 until 09.08.2022

21/UEP-1-CSO

11,35 Sm/m

+ 0,25 %

October

2021

September

2018

RM of lithium ions aqueous solution

A2.6.VR-030-CSO

CRM

GSO 10229-2013

(MSO 1878:2014)

N 5499 until

08.05.2023

7/030-CSO

1,016 g/dm3

+ 0,9 %

April

2020

September

2018

pH-standard 4,01

A9.1.STpH-4.01-CSO

Working Measurement pH-standard

31193-064

N 232564 until

31.03.2021

25/17-4,01-CSO

4,01 pH

+ 0,01 pH *

March

2020

September

2018

pH-standard 9,18

A9.1.STpH-9.18-CSO

Working Measurement pH-standard

31193-064

N 232564 until

31.03.2021

28/18-9,18-CSO

9,18 pH

+ 0,01 pH *

March

2020

August

2018

RM of aluminum ions aqueous solution (12K-1)

A2.6.VR-12K-1-CSO

CRM

CRM corresponds to the type of

GSO 8059-94

(MSO 0015:1998)

------

16/12K-1-CSO

1,010 g/dm3

+ 0,6 %

September

2023

August

2018

RM of calcium ions aqueous solution (19K-1)

A2.6.VR-19K-1-CSO

CRM

GSO 8065-94

(MSO 0020:1998)

N 4831 until

18.07.2021

20/19K-1-CSO

1,000 g/dm3

+ 0,8 %

September

2022

August

2018

RM of cobalt ions aqueous solution (8K-1)

A2.6.VR-8K-1-CSO

CRM

GSO 8089-94

(MSO 0012:1998)

N 4832 until

18.07.2021

10/8K-1-CSO

1,001 g/dm3

+0,4 %

September

2023

August

2018

RM of oil content in water-soluble matrix NPVM-0,5

A.4.3.NPVM-034-0,5-CSO

RM

------

------

6/034-0,5-CSO

0,50** mg

+ 2,5 %

September

2021

August

2018

RM of oil content in water-soluble matrix NPVM-0,1

A.4.3.NPVM-034-0,1-CSO

RM

------

------

9/034-0,1-CSO

0,100** mg

+ 2,5 %

September

2021

August

2018

RM of electrical conductivity of aqueous media (UEP-2)

A9.3.C-UEP-2-CSO

CRM

GSO 7375-97

(MSO 1118:2005)

N 5199 until

09.08.2022

27/UEP-2-CSO

1,293 Sm/m

+ 0,25 %

September

2021

August

2018

RM of electrical conductivity of aqueous media

A9.3.C-UEP-4-CSO

CRM

GSO 7377-97

(MSO 1120:2005)

N 5201 until

09.08.2022

34/UEP-4-CSO

0,02958 Sm/m

+ 0,25 %

September

2021

July

2018

RM of 1,2-dichloroethane

A3.1.O-111-CSO

CRM

GSO 7332-96

(MSO 0107:1999)

N 5245 until

10.11.2022

15/111-CSO

99,97 %

+0,01 %*

August

2021

July

2018

RM of chlorobenzene solution in methanol

(5/OR-1)

A3.1.OR-205.1-CSO

CRM

GSO 7142-95M

(MSO 0097:1999)

N 5598 until

29.06.2023

8/205.1-CSO

1,014 g/dm3

+1,0 %

August

2023

July

2018

RM of phenol solution in methanol (1/OR-1)

A3.1.OR-201.1-CSO

CRM

GSO 7353-97

(MSO 1115:2005)

N 5445 until

11.04.2023

19/201.1-CSO

0,996 g/dm3

+2,4 %

August

2021

July

2018

RM of arsenic (III) ions aqueous solution (11K-1)

A2.6.VR-11K-1-CSO

CRM

GSO 7143-95

(MSO 0082:1999)

N 5118 until 31.05.2022

15/11K-1-CSO

0,1018 g/dm3

+0,6 %

August

2023

July

2018

RM of sodium ions aqueous solution (Na-10)

A2.6.VR-032-CSO

CRM

GSO 10228-2013

(MSO 1877:2014)

N 5498 until 08.05.2023

3/032-CSO

10,02 g/dm3

+0,25 %

August

2023

July

2018

RM of colour of aqueous solutions

(chromium-cobalt scale)

A4.3.C-306-CSO

CRM

GSO 7853-2000

(MSO 0254:2001)

N 4394 until 20.04.2020

57/306-CSO

488 degrees of colour

+ 1,3 %

August

2020

July

2018

RM of total hardness of water

A4.3.C-018-CSO

CRM

GSO 9284-2008

(MSO 1582:2009)

N 3577 until 26.12.2018

7/018-CSO

100,3 degrees of hardness

+ 0,7 %

August

2023

July

2018

RM of total alkalinity of water

A4.3.C-019-CSO

CRM

GSO 9285-2009

(MSO 1584:2009)

N 3796 until 24.06.2019

20/019-CSO

1003 mmol/dm3

+ 0,7 %