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INM
Institutul National de Metrologie
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LENGTHS LABORATORY

INM LABORATORIES

General InformationThe Management Team
Organizational Chart

 

 

  • PHYSICO-CHEMICAL QUANTITIES LABORATORY   


  • Realises and maintains the units of measurement for physico-chemical quantities
  • Disseminates the physico-chemical quantities at national level in accordance with the Mutual Recognition Arrangement for National Measurement Standards and Calibration Certificates

 

Physico-chemical quantities measured in the laboratory

Reference Materials and Medical Devices Group

  • Mass concentration (liquids)
  • Molar concentration (liquids)
  • Mass fraction (solids)
  • pH / pX
  • Humidity of solids
  • Specific quantities for medical devices

Physico-chemical Quantities Group

  • Viscosity
  • Liquid density
  • Concentration (alcohol, sugar, dissolved oxygen)
  • Electrolytic conductivity
  • Refraction index
  • Humidity of gases

Gas Concentration Group

  • Mass fraction (gas mixtures)
  • Volume fraction (gas mixtures)
  • Molar fraction (gas mixtures)
  • Mass concentration (gas mixtures)
  • Molar concentration (gas mixtures)

 

[image]Types of activities and services

  • applied scientific research for developing national, primary and reference measurement standards and ensuring traceability to SI units
  • promoting the principles of metrology in chemistry (www.irmm.be), developing and using reference materials in physico-chemical measurements (www.virm.net)
  • [image]calibration
  • metrological verification
  • making and certifying reference materials
  • tests for pattern approval
  • technical assistance

 

For the full list of calibrations and charges, see the List of measuring means for which the Romanian Bureau Legal Metrology performs calibrations, LE 2016.

 

Representative types of CERTIFIED REFERENCE MATERIALS for ensuring the traceability of physico-chemical results

 

Types of measurement standards Measuring range Unit of measurement Extended uncertainty (for k =2)
Working standard solutions for electrolytic conductivity 40 ... 5000 µS x cm-1 2 % (rel)
Electrolytic conductivity cells 4,00 ... 9,00 1 0,02
Reference pH buffer solutions
Single-element spectrometric reference materials (Na, K, Cu, Pb, Zn, Ca, etc.)
1 g × dm -3 2 % (rel)
Reference gas mixtures (CO, CO2 , H2 , O2) in gas matrix (air or N2) 88 × 10 -6 ... 9 × 10 -2 1   2 × 10 -6 ... 0,1 × 10 -2
Mixtures of hydrocarbons in air
at the lower explosion limit
3,1 × 10 -3 ... 3,7 × 10 -2 1   30 × 10 -6 ... 4 × 10 -4

 

 

REFERENCE MATERIALS Group

 

Main aims

  • [image] applied scientific research for developing primary and reference measurement standards and ensuring traceability to the SI units
  • promoting the principles of metrology in chemistry (www.irmm.be), developing and using reference materials in physico-chemical measurements (www.virm.net)
  • disseminating units of measurement for mass and molar concentration, pH, mass fraction and humidity of solids.

 

Measuring capabilities

Download the Table of measuring capabilities of the Reference Materials Group in ADOBE PDF format.

 

Comparisons


Personnel, positions and contact details:

PhD Eng. Victor George IONESCU, tel. (004021) 334.48.30 ext. 107
PhD. Mariana Stefania CRETU, tel. (004021) 334.48.30 ext. 107
Dipl.Eng.Mirabela Dorela ALBU, tel. (004021) 334.48.30 ext. 116

 


PHYSICO-CHEMICAL QUANTITIES GROUP

 

[image] [image]Main aims

  • applied scientific research for developing primary and reference measurement standards and ensuring traceability to SI units
  • disseminating units of measurement for viscosity, density of liquids, alcohol concentration, electrolytic conductivity, refraction index and humidity of gases.

 

Measuring capabilities

Download the Table of measuring capabilities of the Physico-chemical Quantities Group in ADOBE PDF format.

 

Comparisons

 

Personnel, positions and contact details:

[image]
PhD Eng. Ioan CIRNEANU, head of laboratory, tel. (004021) 334.48.30 ext. 101; e-mail: icirneanu@inm.ro
Dipl. Eng. Gabriela MARES, tel. (004021) 334.48.30 ext. 109
Dipl. Eng. Alexandra MOSULICA, tel. 021.3345060 ext. 109

 


 

 

 

GAS CONCENTRATION GROUP

 

[image]Main aims

  • applied scientific research for developing reference measurement standards and ensuring traceability to SI units
  • disseminating units of measurement for volume fraction and gas concentration

 

Measuring capabilities

Download the Table of measuring capabilities of the Gas Concentration Group in in ADOBE PDF format.

 

Personnel, positions and contact details:

Dipl. Eng. Iulian CADARIU, tel. (004021) 334.48.30 ext. 187
Dipl. Eng. Cristina DAVID, tel. (004021) 334.48.30 ext. 187
Tehn. Valentin DASCALU, tel. (004021) 334.48.30 ext. 187

 

IONIZING RADIATIONS GROUP

Quantities measured in the frames of the group:

  • Activity
  • Activity per unit surface
  • Exposure
  • Absorbed dose
  • Dose equivalent
  • Exposure rate
  • Absorbed dose rate
  • Dose equivalent rate

Main aims:

  • applied scientific research for developing primary and reference measurement standards and ensuring traceability to the SI units
  • promoting the principles of metrology in protection against ionizing radiation
  • disseminating units of measurement for activity, activity per unit surface, exposure, absorbed dose, dose equivalent, exposure rate, absorbed dose rate, dose equivalent rate
Physical quantity Unit of measure Measurement range Expanded uncertainty (k=2) Traceability route
Activity Bq 10...109 5...8% IFIN-HH
Superficial activity Bq · cm-2 10...109 6...9% IFIN-HH
Exposure, absorbed, equivalent Dose Gy
Sv
10-6...2
10-6...3
4,5...7%
4,5...7%
PTB
Exposure, Absorbed, Dose equivalent rate Gy· s-1
Sv· s-1
10-6...2
10-6...3
4,5...7%
4,5...7%
PTB

 

Personnel, positions and contact details:

Dipl. Eng. George LAZAR, tel. (004021) 334.48.30 ext. 156
Tehn. Ioan PLOSCARU, tel. (004021) 334.48.30 ext. 156

 

 

 

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