Calibration of measuring instruments

Measurement range of instruments calibrated:

• Ionizing radiations;
• Mechanical quantities;
• Time;
• Electrical and magnetic quantities;
• Physicochemical composition and properties of substances;
• Optical & physical parameters;
• Pressure and vacuum;
• Temperature and thermophysical characteristics;
• Flow rate and capacity.

INSTRUMENTS TO MEASURE IONIZING RADIATIONS:

• dosimeters;
• radiometers to measure surface contamination with alpha- and beta-active substances;
• radiometers to measure volumetric activity of radon in the air;
• radiation control systems;
• dosimetric and radiometric signaling measuring sets;
• gamma-, alpha-, and beta-spectrometers;
• radiometric sets and instruments to measure specific (volumetric) activity of alpha-, beta-, and gamma-emitting radionuclides
• spectrometric gamma-radiation sources of OSGI type;
• radiometric alpha- and beta sources.

INSTRUMENTS TO MEASURE MECHANICAL QUANTITIES:

• general-purpose laboratory scales;
• static scales;
• speedometers.

INSTRUMENTS TO MEASURE ELECTRICAL AND MAGNETIC QUANTITIES:

• d.с. & a.c. voltmeters;
• d.с. & a.c. ammeters;
• universal digital voltmeters;
• ohmmeters;
• clamp-on ammeters.

INSTRUMENTS TO MEASURE PHYSICOCHEMICAL COMPOSITION AND PROPERTIES OF SUBSTANCES:

• laboratory pH-meters and ionometers;
• laboratory gas chromatographs and liquid chromatographs;
• gas analyzers and signaling devices.

INSTRUMENTS TO MEASURE OPTICAL & PHYSICAL PARAMETERS:

• photoelectric colorimeters;
• photoelectric photometers;
• photovoltaic facilities (emission spectrometers);
• spectrophotometers;
• flame photometers;
• atomic absorption spectrometers.

INSTRUMENTS TO MEASURE PRESSURE AND VACUUM:

• self-recording-, electrocontact-, oxygen-, and acetylene pressure gauges;
• blast meters, head flow meters, draft & pressure gauges;
• sphygmomanometers and tonometers;
• pressure transducers.

INSTRUMENTS TO MEASURE TEMPERATURE AND THERMOPHYSICAL CHARACTERISTICS:

• resistance thermometers;
• thermoelectric thermometers;
• liquid-in-glass thermometers;
• ratio meters • potentiometers;
• automatic balanced bridges;
• secondary thermal control instruments.

INSTRUMENTS TO MEASURE FLOW RATE AND CAPACITY:

• fuel dispensing units;
• automatic and mechanical pipettors, automatic laboratory pipettors.

INSTRUMENTS TO MEASURE TIME AND FREQUENCY:

• mechanical stopwatches.