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In the CMCs uncertainty statements, the notation Q[a, b] stands for the root-sum-square of the terms between brackets: Q[a, b] = [a 2 + b 2]1/2
Unless otherwise stated the expanded uncertainties given below correspond to k = 2 (at a 95 % level of confidence)
Bolivia, IBMETRO (Instituto Boliviano de Metrología)
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
4 to 4.2 |
1.0E-2 |
4 to 4.2 |
1.0E-2 |
-
Mechanism for measurement service delivery :
MRC 5118402 and Calibration of customer supplied samples 5118214
-
Temperature range 5 °C to 50 °C. Data given for 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
-
Approved on
15 July 2016
-
Institute service identifier : 5118402
Matrix or material |
Dissemination range of measurement capability |
Range of certified values in reference materials |
pH in |
Absolute expanded uncertainty in |
pH in |
Absolute expanded uncertainty in |
aqueous pH buffer solution |
6.8 to 7.5 |
1.0E-2 |
6.8 to 7.5 |
1.0E-2 |
-
Mechanism for measurement service delivery :
MRC 5118404 Calibration of customer supplied samples 5118215
-
Temperature range 5 °C to 50 °C. Data given for 25 °C. Declared uncertainties do not include the uncertainty contribution due to the Bates-Guggenheim convention
-
Approved on
15 July 2016
-
Institute service identifier : 5118404
Matrix or material |
Analyte or component |
Dissemination range of measurement capability |
Range of certified values in reference materials |
Mass fraction in µg/kg |
Relative expanded uncertainty in % |
Mass fraction in µg/kg |
Relative expanded uncertainty in % |
drinking or synthetic water |
cadmium |
5 to 50 |
2.0E1 to 1.6E1 |
5 to 50 |
2.5E1 to 2.0E1 |
-
Mechanism for measurement service delivery :
CRM Multielemental solution, Value-assign proficiency testing samples
-
Approved on
23 October 2019
-
Institute service identifier : 5118439
Matrix or material |
Analyte or component |
Dissemination range of measurement capability |
Range of certified values in reference materials |
Mass fraction in µg/kg |
Relative expanded uncertainty in % |
Mass fraction in µg/kg |
Relative expanded uncertainty in % |
drinking or synthetic water |
lead |
5 to 30 |
2.0E1 to 1.6E1 |
5 to 30 |
2.5E1 to 2.0E1 |
-
Mechanism for measurement service delivery :
CRM Multielemental solution, Value-assign proficiency testing samples
-
Approved on
23 October 2019
-
Institute service identifier : 5118439
Mass ,
Mass
:
20 mg
Conventional mass
Absolute expanded uncertainty
:
1.0E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
5 g
Conventional mass
Absolute expanded uncertainty
:
5.0E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
100 mg
Conventional mass
Absolute expanded uncertainty
:
1.6E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
500 mg
Conventional mass
Absolute expanded uncertainty
:
2.5E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
20 g
Conventional mass
Absolute expanded uncertainty
:
8.0E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
200 g
Conventional mass
Absolute expanded uncertainty
:
0.3 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
10 mg
Conventional mass
Absolute expanded uncertainty
:
8.0E-3 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
50 mg
Conventional mass
Absolute expanded uncertainty
:
1.2E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
10 g
Conventional mass
Absolute expanded uncertainty
:
6.0E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
1000 g
Conventional mass
Absolute expanded uncertainty
:
1.6 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117105
Mass ,
Mass
:
1 g
Conventional mass
Absolute expanded uncertainty
:
3.0E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
2 g
Conventional mass
Absolute expanded uncertainty
:
4.0E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
500 g
Conventional mass
Absolute expanded uncertainty
:
0.8 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117105
Mass ,
Mass
:
1 mg to 5 mg
Conventional mass
Absolute expanded uncertainty
:
6.0E-3 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
200 mg
Conventional mass
Absolute expanded uncertainty
:
2.0E-2 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104
Mass ,
Mass
:
100 g
Conventional mass
Absolute expanded uncertainty
:
0.16 mg
Direct comparison
Temperature : 18 °C to 22 °C
Humidity : 40 %HR to 60 %HR
Approved on 13 July 2017
Institute service identifier : IBMETRO/5117104