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Institutul National de Metrologie
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PHISICO-CHEMICAL QUANTITIES LABORATORY

INM LABORATORIES

General Information • The Management Team
Organizational Chart

 

 

  • 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

 

Organizational structure and contact persons

Head of the laboratory:Ph. D Mirella Buzoianu

Tel. 3344830 int.162; e-mail: buzoianu@inm.ro.

Reference materials and medical devices group

Head of the Group: Fiz. Constantin Botgros

Tel. 3344830 ext.116; e-mail botgros@inm.ro.

Physico-chemical quantities group

Head of the Group: Ph. D Ioan Cîrneanu

Tel 3344830 ext. 109; e-mail: cirneanu@inm.ro.

Gas concentration group

Head of the Group: Ph. D Eng. Ionita Nicusor

Tel 3344830 ext. 187: e-mail: konig@inm.ro.

 

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 Legal Metrology performs calibrations, LE 2006.

 

 

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 × cm -1   1 % (rel)
Electrolytic conductivity cells 0.60 … 1.50 cm -1   2 %
Reference pH buffer solutions 4.00 … 9.00 1 0,02
Single-element spectrometric reference materials (Na, K, Cu, Pb, Zn, Ca, etc.) 1 g × dm -3   0,002 … 0,004
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 AND MEDICAL DEVICES Group

 

[image]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 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 and Medical Devices Group in ADOBE PDF format.

 

Comparisons

 

PHYSICO-CHEMICAL QUANTITIES GROUP

 

[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

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

 

Comparisons

  • EUROMET Project M.V.- 53 (415), Metrologia, 2001, 38, 285 – 287 ;
  • CCM Project V-K1;
  • ASTM Cannon

 

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 ADOBE PDF format.

 

 

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